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Ciociola, Americo I.,; de Almeida, Raul P.; Stouthamer, Richard (Proceedings of the Eleventh Meeting of the Experimental and Applied Entomologists in the Netherlands Wageningen, Netherlands December 17, 1999). Does degradation of DNA in dead Trichogamma individuals lead to failure of their identification using ITS2 PCR? In: Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society (N.E.V.) 2000. 11 33-36.

Ciociola, Americo I.,; de Almeida, Raul P.; Stouthamer, Richard (Proceedings of the Eleventh Meeting of the Experimental and Applied Entomologists in the Netherlands Wageningen, Netherlands December 17, 1999). Does degradation of DNA in dead Trichogamma individuals lead to failure of their identification using ITS2 PCR? In: Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society (N.E.V.) 2000. 11 33-36.

Honda, Jeffrey Y.; Silva, Isabel M. M. S.; Vereijssen, Jessica; Stouthamer, Richard. Laboratory bioassay and greenhouse evaluation of Trichogramma cordubensis strains from Portugal. In: Biocontrol (Dordrecht) 1999. 44 (1): 1-11.

Hoogenboom, Aldo; Silva, Isabel M. M. S.; Van Meer, Marnix M. M.; Roskam, Michel M.; Stouthamer, R. (Proceedings of the Ninth Meeting of Experimental and Applied Entomologists in the Netherlands Leidin, Netherlands December 19, 1997). Quality assessments of Wolbachia infected versus non infected lines of Trichogramma deion.

Sommeijer, M. J. Francke, P. J., In: Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society (N.E.V.). Netherlands Entomological Society ; Plantage Middenlaan 64, 1018 DH Amsterdam 414, Netherlands, 1998. 99-104.

Hora, K. H.; Mak, F.; Stouthamer, R. (Sixth Meeting Amsterdam, Netherlands December 16, 1994). Host size effects on the fitness of E. formosa and the consequences for host choice of the wasp: Does E. formosa choose the hosts which result in the highest offspring fitness? Sommeijer, M. J. Francke, P. J., In: Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society (N.E.V.). Netherlands Entomological Society ; Plantage Middenlaan 64, 1018 DH Amsterdam 414, Netherlands, 1995. 141-146.

Horjus, Marjetta; Stouthamer, Richard (Sixth Meeting Amsterdam, Netherlands December 16, 1994). Does infection with thelytoky-causing Wolbachia in the pre-adult and adult life stages influence the adult fecundity of Trichogramma deion and Muscidifurax uniraptor? Sommeijer, M. J. Francke, P. J., In: Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society (N.E.V.). Netherlands Entomological Society ; Plantage Middenlaan 64, 1018 DH Amsterdam 414, Netherlands, 1995. 35-40.

Huigens, M. E.; Luck, R. F.; Klaassen, R. H. G.; Maas, M. F. P. M.; Timmermans, M. J. T. N.; Stouthamer, R.. Infectious parthenogenesis. In: Nature (London) May 11, 2000. 405 (6783): 178-179.

Huigens, M. E.; Luck, R. F.; Klaassen, R. H. G.; Maas, M. F. P. M.; Timmermans, M. J. T. N.; Stouthamer, R.. Infectious parthenogenesis. In: Nature (London) May 11, 2000. 405 (6783): 178-179.

Hurst, G. D. D.; Von Der Schulenburg, J. H. Graf; Majerus, T. M. O.; Bertrand, D.; Zakharov, I. A.; Baungaard, J.; Volkl, W.; Stouthamer, R.; Majerus, M. E. N.. Invasion of one insect species, Adalia bipunctata, by two different male-killing bacteria. In: Insect Molecular Biology Feb., 1999. 8 (1): 133-139.

Hurst, Gregory D. D.; Jiggins, Francis M.; von der Schulenburg, J. Hinrich Graf; Bertrand, Dominique; West, Stuart A.; Goriacheva, Irina I.; Zakharov, Ilia A.; Werren, John H.; Stouthamer, Richard; Majerus, Michael E. N.. Male-killing Wolbachia in two species of insect. In: Proceedings of the Royal Society Biological Sciences Series B April 7, 1999. 266 (1420): 735-740.

Jochemsen, Petra; Schilthuizen, Menno; Stouthamer, Richard (Proceedings of the Ninth Meeting of Experimental and Applied Entomologists in the Netherlands Leidin, Netherlands December 19, 1997). Transmission of Wolbachia between Trichogramma species and their lepidopteran hosts? Sommeijer, M. J. Francke, P. J., In: Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society (N.E.V.). Netherlands Entomological Society ; Plantage Middenlaan 64, 1018 DH Amsterdam 414, Netherlands, 1998. 131-135.

Luck, Robert F.; Stouthamer, Richard; Nunney, Leonard P.. Sex determination and sex ratio patterns in parasitic Hymenoptera. Wrensch, D. L. Ebbert, M. A., Eds. In: Evolution and diversity of sex ratio in insects and mites.Chapman and Hall, Inc. ; Chapman and Hall Ltd. 29 West 35th Street, New York, New York, USA; 2-6 Boundary Row, London SE1 8HN, England, 1993. 442-476. pp.

Ngi-Song, A. J.; Overholt, W. A.; Stouthamer, R.. Suitability of Busseola fusca an dSesamia calamistis (Lepidoptera: Noctuidae) for the development of two populations of Cotesia sesamiae ((Hymenoptera: Braconidae) in Kenya. In: Biological Control July, 1998. 12 (3): 208-214.

Obornik, Miroslav; Stouthamer, Richard; Meekes, Ellis; Schilthuittzen, Menno. Molecular characterization and phylogeny of the entomopathogenic fungus: Aschersonia spp. In: Plant Protection Science March, 1999. 35 (1): 1-9.

Pinto, John D.; Stouthamer, Richard; Platner, Gary R.. A new cryptic species of Trichogramma (Hymenoptera: Trichogrammatidae) from the Mojave Desert of California as determined by morphological, reproductive and molecular data. In: Proceedings of the Entomological Society of Washington 1997. 99 (2): 238-247.

Polaszek, A.; Stouthamer, R.; Hunter, M. S.; Rose, M.; Ovruski, S. M.; Frias, E.; Rojas, S. P. (4th International Symposium Cairo, Egypt October 4-7, 1994). Heterotrophic parasitoids revisited: Preliminary observations on Encarsia porteri (Mercet) (Hymenoptera: Aphelinidae). Wajnberg, E., In: INRA Colloquia; Trichogramma and other egg parasitoids. INRA (Institut National de la Recherche Agronomique) ; 147 rue de l'Universite, 75007 Paris, France, 1995. 31-32.

Riparbelli, Maria Giovanna; Stouthamer, Richard; Dallai, Romano; Callaini, Giuliano. Microtubule organization during the early development of the parthenogenetic egg of the hymenopteran Muscidifurax uniraptor. In: Developmental Biology March 15, 1998. 195 (2): 89-99.

Schilthuizen, M.; Honda, J.; Stouthamer, R.. Parthenogenesis-inducing Wolbachia in Trichogramma kaykai (Hymenoptera: Trichogrammatidae) originates from a single infection. In: Annals of the Entomological Society of America July, 1998. 91 (4): 410-414.

Schilthuizen, Menno; Nordlander, Goran; Stouthamer, Richard; Van Alphen, Jacques J. M.. Morphological and molecular phylogenetics in the genus Leptopilina (Hymenoptera: Cynipoidea: Eucoilidae). In: Systematic Entomology July, 1998. 23 (3): 253-264.

Schilthuizen, Menno; Stouthamer, Richard. Distribution of Wolbachia among the guild associated with the parthenogenetic gall wasp Diplolepsis rosae. In: Heredity Sept., 1998. 81 (3): 270-274.

Schilthuizen, Menno; Stouthamer, Richard. Horizontal transmission of parthenogenesis-inducing microbes in Trichogramma wasps. In: Proceedings of the Royal Society of London Series B Biological Sciences 1997. 264 (1380): 361-366.

Schoenmaker, A.; Stouthamer, R. (Seventh Meeting Utrecht, Netherlands December 15, 1995). Contribution of heterosis to the coexistence of Wolbachia-infected and uninfected Trichogramma deion forms. Sommeijer, M. J. Francke, P. J., In: Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society (N.E.V.). Netherlands Entomological Society ; Plantage Middenlaan 64, 1018 DH Amsterdam 414, Netherlands, 1996. 21-25.

Schoenmaker, Astrid; Van Den Bosch, Frank; Stouthamer, Richard. Symbiontic bacteria in parasitoid populations: Coexistence of Wolbachia-infected and uninfected Trichogramma. In: Oikos April, 1998. 81 (3): 587-597.

Silva, I. M. M. S.; Van Heest, J. P. N. F.; Van Kan, F. J. P. M.; Strippentow, P.; Takacs, K.; Stouthamer, R. (Sixth Meeting Amsterdam, Netherlands December 16, 1994). Phylogeny of egg parasitoids Trichogramma spp. (Hymenoptera: Trichogrammatidae). Sommeijer, M. J. Francke, P. J., In: Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society (N.E.V.). Netherlands Entomological Society ; Plantage Middenlaan 64, 1018 DH Amsterdam 414, Netherlands, 1995. 195-196.

Silva, I. M. M. S.; Van Kan, F. J. P. M.; Van Lenteren, J. C.; Stouthamer, R. (4th International Symposium Cairo, Egypt October 4-7, 1994). Analysis of Portuguese Trichogramma spp. (Hym., Trichogrammatidae) using ITS-rDNA and RAPDs. Wajnberg, E., In: INRA Colloquia; Trichogramma and other egg parasitoids. INRA (Institut National de la Recherche Agronomique) ; 147 rue de l'Universite, 75007 Paris, France, 1995. 37-39.

Silva, Isabel M. M. S.; Honda, Jeffrey; van Kan, Frenk; Hu, Jianguo; Neto, Luis; Pintureau, Bernard; Stouthamer, Richard. Molecular differentiation of five Trichogramma species occurring in Portugal. In: Biological Control Oct., 1999. 16 (2): 177-184.

Silva, Isabel M. M. S.; Stouthamer, Richard (Proceedings of the Ninth Meeting of Experimental and Applied Entomologists in the Netherlands Leidin, Netherlands December 19, 1997). Indirect assessment of host acceptance and suitability of four Trichogramma species. Sommeijer, M. J. Francke, P. J., In: Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society (N.E.V.). Netherlands Entomological Society ; Plantage Middenlaan 64, 1018 DH Amsterdam 414, Netherlands, 1998. 105-110.

Silva, Isabel M. M. S.; Stouthamer, Richard (Seventh Meeting Utrecht, Netherlands December 15, 1995). Can the parthenogenesis-Wolbachia lead to unusual courtship behaviour in Trichogramma? Sommeijer, M. J. Francke, P. J., In: Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society (N.E.V.). Netherlands Entomological Society ; Plantage Middenlaan 64, 1018 DH Amsterdam 414, Netherlands, 1996. 27-31.

Silva, Isabel M. M. S.; Stouthamer, Richard. Do sympatric Trichogramma species parasitize the pest insect Helicoverpa armigera and the beneficial insect Chrysoperla carnea in different proportions? In: Entomologia Experimentalis et Applicata July, 1999. 92 (1): 101-107.

Silva, Isabel M. S. S.; Stouthamer, Richard (Eighth Meeting Utrecht, Netherlands December 13, 1996). To mate or not to mate: Can sex pheromones be used as a taxonomic tool in Trichogramma spp.? Sommeijer, M. J. Francke, P. J., Eds. In: Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society (N.E.V.).Netherlands Entomological Society Plantage Middenlaan 64, 1018 DH Amsterdam 414, Netherlands 1997., 41-46. pp

Stolk, Clemens; Stouthamer, Richard (Seventh Meeting Utrecht, Netherlands December 15, 1995). Influence of a cytoplasmic incompatibility-inducing Wolbachia on the fitness of the parasitoid wasp Nasonia vitripennis. Sommeijer, M. J. Francke, P. J., In: Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society (N.E.V.). Netherlands Entomological Society ; Plantage Middenlaan 64, 1018 DH Amsterdam 414, Netherlands, 1996. 33-37.

Stouthamer, R.. The use of sexual versus asexual wasps in biological control. In: Entomophaga 1993. 38 (1): 3-6.

Stouthamer, R.; Breeuwer, J. A. J.; Luck, R. F.; Werren, J. H.. Molecular identification of microorganisms associated with parthenogenesis. In: Nature (London) 1993. 361 (6407): 66-68.

Stouthamer, R.; Gai, Y.; Koopmanschap, A. B.; Platner, G. R.; Pinto, J. D.. ITS-2 sequences do not differ for the closely related species Trichogramma minutum and T. platneri. In: Entomologia Experimentalis et Applicata April, 2000. 95 (1): 105-111.

Stouthamer, R.; Gai, Y.; Koopmanschap, A. B.; Platner, G. R.; Pinto, J. D.. ITS-2 sequences do not differ for the closely related species Trichogramma minutum and T. platneri. In: Entomologia Experimentalis et Applicata April, 2000. 95 (1): 105-111.

Stouthamer, R.; Luck, R. F.. Influence of microbe-associated parthenogenesis on the fecundity of Trichogramma deion and Trichogramma pretiosum. In: Entomologia Experimentalis et Applicata 1993. 67 (2): 183-192.

Stouthamer, Richard. Wolbachia-induced parthenogenesis. O'Neill, S. L. Hoffman, A. A. Werren, J. H., In: Influential passengers: Inherited microorganisms and arthropod reproduction. Oxford University Press ; Oxford University Press, Inc. ; Walton Street, Oxford OX2 6DP, England; 200 Madison Avenue, New York, New York 10016, USA, 1997. 102-124

Stouthamer, Richard; Hu, Jianguo; Van Kan, Frenk J.P.M.; Platner, Gary R.; Pinto, John D.. The utility of internally transcribed spacer 2 DNA sequences of the nuclear ribosomal gene for distinguishing sibling species of Trichogramma. In: Biocontrol (Dordrecht) 1998-1999. 43 (4): 421-440.

Stouthamer, Richard; Jochemsen, Petra; Platner, Gary R.; Pinto, John D.. Crossing incompatibility between Trichogramma minutum and T. platneri (Hymenoptera: Trichogrammatidae): Implications for application in biological control. In: Environmental Entomology August, 2000. 29 (4): 832-837.

Stouthamer, Richard; Kazmer, David J.. Cytogenetics of microbe-associated parthenogenesis and its consequences for gene flow in Trichogramma wasps. In: Heredity 1994. 73 (3): 317-327.

Stouthamer, Richard; Luck, Robert F. (International Symposium on Alternative Reproduction Strategies Hayama, Japan November 25-28, 1999). Wolbachia-induced parthenogenesis. In: Journal of Reproduction and Development March, 2000. 46 (Supplement): 19-20.

Stouthamer, Richard; Luck, Robert F. (International Symposium on Alternative Reproduction Strategies Hayama, Japan November 25-28, 1999). Wolbachia-induced parthenogenesis. In: Journal of Reproduction and Development March, 2000. 46 (Supplement): 19-20.

Stouthamer, Richard; Luck, Robert F.; Pinto, John D.; Platner, Gary R.; Stephens, Beth. Non-reciprocal cross-incompatibility in Trichogramma deion. In: Entomologia Experimentalis et Applicata 1996. 80 (3): 481-489.

Stouthamer, Richard; Werren, John H.. Microbes associated with parthenogenesis in wasps of the genus Trichogramma. In: Journal of Invertebrate Pathology 1993. 61 (1): 6-9.

Te Beest, M.; Huigens, T.; Stouthamer, R. (Proceedings of the Ninth Meeting of Experimental and Applied Entomologists in the Netherlands Leidin, Netherlands December 19, 1997). Wolbachia induced transsexuality in terrestrial isopods. Sommeijer, M. J. Francke, P. J., In: Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society (N.E.V.). Netherlands Entomological Society ; Plantage Middenlaan 64, 1018 DH Amsterdam 414, Netherlands, 1998. 151-154.

Van Kan, Frenk J. P. M.; Honda, Jeff; Pinto, John D.; Stouthamer, Richard (Eighth Meeting Utrecht, Netherlands December 13, 1996). Molecular based techniques for Trichogramma identification. Sommeijer, M. J. Francke, P. J., Eds. In: Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society (N.E.V.).Netherlands Entomological Society Plantage Middenlaan 64, 1018 DH Amsterdam 414, Netherlands 1997., 59-62. pp.

Van Kan, Frenk J. P. M.; Silva, Isabel M. M. S.; Schilthuizen, Menno; Pinto, John D.; Stouthamer, Richard (Seventh Meeting Utrecht, Netherlands December 15, 1995). Use of DNA-based methods for the identification of minute wasps of the genus Trichogramma. Sommeijer, M. J. Francke, P. J., In: Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society (N.E.V.). Netherlands Entomological Society ; Plantage Middenlaan 64, 1018 DH Amsterdam 414, Netherlands, 1996. 233-237.

Van Meer, M. M. M.; Van Kan, F. J. P. M.; Breeuwer, J. A. J.; Stouthamer, R. (Sixth Meeting Amsterdam, Netherlands December 16, 1994). Identification of symbionts associated with parthenogenesis in Encarsia formosa (Hymenoptera: Aphelinidae) and Diplolepis rosae (Hymenoptera: Cynipidae). Sommeijer, M. J. Francke, P. J., In: Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society (N.E.V.). Netherlands Entomological Society ; Plantage Middenlaan 64, 1018 DH Amsterdam 414, Netherlands, 1995. 81-86.

Van Meer, M. M. M.; Van Kan, F. J. P. M.; Stouthamer, R. (Seventh Meeting Utrecht, Netherlands December 15, 1995). Can Wolbachia micro-injections induce parthenogenesis in sexual insects? Sommeijer, M. J. Francke, P. J., In: Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society (N.E.V.). Netherlands Entomological Society ; Plantage Middenlaan 64, 1018 DH Amsterdam 414, Netherlands, 1996. 43-44.

van Meer, M. M. M.; Van Kan, F. J. P. M.; Stouthamer, R.. Spacer 2 region and 5S rDNA variation of Wolbachia strains involved in cytoplasmic incompatibility or sex-ratio distortion in arthropods. In: Letters in Applied Microbiology Jan., 1999. 28 (1): 17-22.

van Meer, M. M. M.; Witteveldt, J.; Stouthamer, R.. Phylogeny of the arthropod endosymbiont Wolbachia based on the wsp gene. In: Insect Molecular Biology Aug., 1999. 8 (3): 399-408.

Van Meer, Marnix M. M.; Stouthamer, Richard. Cross-order transfer of Wolbachia from Muscidifurax uniraptor (Hymenoptera: Pteromalidae) to Drosophila similans (Diptera: Drosophilidae). In: Heredity Feb., 1999. 82 (2): 163-169.

van Meer, Marnix M. M.; Witteveldt, Jeroen; Stouthamer, Richard. Development of a microinjection protocol for the parasitoid Nasonia vitripennis. In: Entomologia Experimentalis et Applicata. Dec., 1999. 93 (3): 325-329.

van Rijswijk, Marielle; van der Heijden, Rick; Jongema, Yde; Stouthamer, Richard (Proceedings of the Eleventh Meeting of the Experimental and Applied Entomologists in the Netherlands Wageningen, Netherlands December 17, 1999). Occurrence and molecular identification of the dutch Trichogramma species. In: Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society (N.E.V.) 2000. 11 67-71.

van Rijswijk, Marielle; van der Heijden, Rick; Jongema, Yde; Stouthamer, Richard (Proceedings of the Eleventh Meeting of the Experimental and Applied Entomologists in the Netherlands Wageningen, Netherlands December 17, 1999). Occurrence and molecular identification of the dutch Trichogramma species. In: Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society (N.E.V.) 2000. 11 67-71.

Van Tilborg, Merijn; Silva, Isabel M. M. S.; Stouthamer, Richard (Eighth Meeting Utrecht, Netherlands December 13, 1996). Crossings-compatibility of Portuguese Trichogramma lines (Hymenoptera: Trichogrammatidae). Sommeijer, M. J. Francke, P. J., Eds. In: Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society (N.E.V.).Netherlands Entomological Society Plantage Middenlaan 64, 1018 DH Amsterdam 414, Netherlands 1997., 53-58. pp.

Van Tilborg, Merijn; Stouthamer, Richard (Proceedings of the Ninth Meeting of Experimental and Applied Entomologists in the Netherlands Leidin, Netherlands December 19, 1997). Can a psr factor explain the co-existence of infected and uninfected individuals in Trichogramma kaykai populations? Sommeijer, M. J. Francke, P. J., In: Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society (N.E.V.). Netherlands Entomological Society ; Plantage Middenlaan 64, 1018 DH Amsterdam 414, Netherlands, 1998. 137-144.

Vereijssen, Jessica; Silva, Isabel; Honda, Jeff; Stouthamer, Richard (Eighth Meeting Utrecht, Netherlands December 13, 1996). Development of a method to predict the biological control quality of Trichogramma strains. Sommeijer, M. J. Francke, P. J., Eds. In: Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society (N.E.V.).Netherlands Entomological Society Plantage Middenlaan 64, 1018 DH Amsterdam 414, Netherlands 1997., 145-149. pp.

Werren, John H.; Hurst, Gregory D. D.; Zhang, Wan; Breeuwer, Johaness A. J.; Stouthamer, Richard; Majerus, Michael E. N.. Rickettsial relative associated with male killing in the ladybird beetle (Adalia bipunctata). In: Journal of Bacteriology 1994. 176 (2): 388-394

Hoddle, M.S., L. A. Mound, P. F. Rugman-Jones, and R. Stouthamer 2008. Synonomy of Five Scirtothrips species (Thysanoptera: Thripidae) Described from Avocados (Persea americana) in Mexico. Florida Entomologist 91:16-21

Hoddle, M.S., J. M. Heraty, P. F. Rugman-Jones, L. A. Mound, and R. Stouthamer 2008. Relationships Among Species of Scirtothrips Shull 1909 (Thysanoptera: Thripidae, Thripinae) Using Molecular and Morphological Data Ann. Entomol. Soc. Am. 101(3): 491-500

Adachi-Hagimori, T., K. Miura, and R. Stouthamer. 2008. New cytogenetic mechanism for bacterial endosymbiont-induced parthenogenesis in Hymenoptera. Proceedings Royal Society 275:2667-2673

Hansen, A.K., J.T. Trumble, R. Stouthamer, T.D. Paine. 2008. New Huanglongbing (HLB) Candidatus species, “C. Liberibacter psyllaurous”, found to infect tomato and potato is vectored by the psyllid Bactericerca cockerelli (Sulc). Applied and Environmetal Microbiology 74:5862-5865.

Gols, R., C. Schutte, R. Stouthamer, and M. Dicke. 2007. PCR-based identification of the pathogenic bacterium, Acaricomes phytoseiuli, in the biological control agent Phytoseiulus persimilis (Acari: Phytoseiidae). Biological Control 42:316-325

Hansen, A. K., G. Jeong, T. D. Paine, and R. Stouthamer 2007. Frequency of Secondary Symbiont Infection in an Invasive Psyllid Relates to Parasitism Pressure on a Geographic Scale in California. Applied and Environmetal Microbiology 73: 7531–7535

P. F. Rugman-Jones, M. S. Hoddle, R. Stouthamer. (2007) Population genetics of Scirtothrips perseae: tracing the origin of a recently introduced exotic pest of Californian avocado orchards, using mitochondrial and microsatellite DNA markers. Entomologia Experimentalis et Applicata (accepted)

Gavotte, L., Henri, H., Stouthamer, R., Charif, D., Charlat, S., Boulétreau, M. and Vavre, F. (2007). A survey of the bacteriophage WO in the endosymbiotic bacteria Wolbachia. Molecular Biology and Evolution 24:427-435.

Liu, D., J. T. Trumble and R. Stouthamer. (2006). Molecular characterization indicates recent introductions of tomato psyllid (Bactericera cockerelli) into western North America are genetically different from eastern populations. Entomologia Experimentalis et Applicata 118:177-183.

Rugman-Jones, P. F. , M. S. Hoddle, L.A. Mound, R. Stouthamer. (2006). Molecular identification key for the pest species of Scirtothirps (Thysanoptera: Thripidae). Journal of Economic Entomology 99:1813-1819.

Jeong, G. & Stouthamer, R. (2006). No effect of postzygotic reproductive isolation on the interspecific transmission of the paternal sex ratio (PSR) chromosome in Trichogramma. Entomologia Experimentalis et Applicata 120: 33-40.

Jeong, G. & R. Stouthamer. (2005). Genetics of female functional virginity in the parthenogenesis-Wolbachia infected parasitoid wasp Telenomus nawai (Hymenoptera: Scelionidae). Heredity 92: 402-407.

Schuenzel, E.L., M. Scally, R. Stouthamer, and L. Nunney. (2005). A multigene phylogentic study of clonal diversity and divergence in North American strains of the plant pathogen Xylella fastidiosa. Applied and Environmental Microbiology 71:3832-3839.

Rugman-Jones, P. F., A.R. Weeks, M. S. Hoddle, R. Stouthamer. (2005). Isolation and characterization of microsatellite loci in the avocado thrips Scirtothrips perseae (Thysanoptera: Thripidae). Molecular Ecology Notes 5:644-646.

Scally, M., E. L. Schuenzel, R.Stouthamer, and L. Nunney (2005). A Multilocus Sequence Type System for the plant pathogen Xylella fastidiosa and the relative contribution of recombination versus point mutation to clonal diversity. Applied and Environmental Microbiology 71: 8491-8499

van Vugt, J.F.A., S. de Nooijer, H.de Jong and R. Stouthamer. (2005). Characterization of repeat sequences on the genome of the parasitic wasp Trichogramma kaykai and its paternal sex ratio chromosome. Chromosoma 114: 410-419.

Vavre, F., J. H. de Jong, and R. Stouthamer. 2004. Cytogenetic mechanism and genetic consequences of thelytoky in the wasp Trichogramma cacoeciae. Heredity 93: 592-596 .

Vickerman D. B., M. S. Hoddle, S. Triapitsyn and R. Stouthamer. 2004. Species identity of geographically distinct populations of the glassy-winged sharpshooter parasitoid Gonatocerus ashmeadi: Morphology, DNA sequences and reproductive compatibility. Biological Control 31:338-345

Niyibigira, E.I., W. A. Overholt & R. Stouthamer. 2004. Cotesia flavipes Cameron and Cotesia sesamiae (Cameron) (Hymenoptera: Braconidae) do not exhibit Complementary Sex Determination: Evidence from field populations. Applied Entomology and Zoology 39: 705-715.

Niyibigira, E.I., W. A. Overholt & R. Stouthamer. 2004. Cotesia flavipes Cameron (Hymenoptera: Braconidae) does not exhibit Complementary Sex Determination (ii) Evidence from laboratory experiments. Applied Entomology and Zoology 39: 717-725.

Gavotte, L., F. Vavre, H.M. Ravallec, R. Stouthamer and M. Bouletreau. 2004. Diversity, distribution and specificity of WO phage infection in Wolbachia of four insect species. Insect Molecular Biology. 13: 147-153.

Weeks, A.R. and R. Stouthamer. 2004. Increased fecundity associated with infection by a Cytophaga-like intracellular bacterium in the predatory mite, Metaseiulus occidentalis. Proceedings of the Royal Society London B 271 (Suppl. 4): S193-S195.

Huigens, M.E., R.P. de Almeida, P. Boons, R.F. Luck and R. Stouthamer. 2004. Natural interspecific and intraspecific horizontal transfer of parthenogensis-inducing Wolbachi in Trichogramma wasps. Proceedings of the Royal Society London B 271: 509-515.

Huigens, M.E., C.L. Hohmann, R.F. Luck, G. Gort and R. Stouthamer. 2004. Reduced competitive ability due to Wolbachia infection in the parasitoid wasp Trichogramma kaykai. Entomologia Experimentalis et Applicata. 110: 115-123.

Pinto, J.D., G.R. Plantner and R. Stouthamer. 2003. The systematics of the Trichogramma minutum species complex (Hymenoptera: Trichogrammatidae), a group of important North American biological control agents: The evidence from reproductive compatibility and allozymes. Biological Control 27: 167-180

van Vugt, J.F.A., M. Salverda, J.H. de Jong and R. Stouthamer. 2003. The paternal sex ratio chromosome in the parasitic wasp Trichogramma kaykai condenses the paternal chromosomes into a dense chromatin mass. Genome 46: 580-587.

Weeks, A.R., R. Velten and R. Stouthamer. 2003. Incidence of a new sex-ratio distorting endosymbiotic bacterium among arthropods. Proc. Royal Soc. London (B) 270: 1857-1865.

De Almeida, R.A. and R. Stouthamer. 2003. Molecular identification of Trichogramma cacoeciae Marchal (Hymenoptera: Trichogrammatidae): A new record for Peru. Neotropical Entomology. 32: 269-272.

Borghuis, A., J.D. Pinto, G.R. Platner and R. Stouthamer. 2003. Partial cytochrome oxidase II sequences distinguish the sibling species Trichogramma minutum Riley and Trichogramma platneri Nagarkatti. Biological Control 30: 90-94.

Pinto, J.D., A.B. Koopmanschap, G.R. Platner and R. Stouthamer. 2002. The North American Trichogramma (Hymenoptera: Trichogrammatidae) parasitizing certain Tortricidae (Lepidoptera) on apple and pear, with ITS2 DNA characterizations and description of a new species. Biological Control 23: 134-142

Mochiah, M.B., A.J. Ngi-Song, W.A. Overholt and R. Stouthamer. 2002. Wolbachia infection in Cotesia sesamiae (Hymenoptera: Braconidae) causes cytoplasmic incompatibility: implications for biological control. Biological Control 25: 74-80.

Stouthamer, R and F. Mak. 2002. Influence of antibiotics on the offspring production of the Wolbachia-infected parthenogenetic parasitoid Encarsia formosa. Journ. Invert. Path. 80: 41-45

Tagami, Y., K. Miura, and R. Stouthamer. 2002. Positive effect of fertilization on the survival rate of immature stages in a Wolbachia-associated thelytokous line of Trichogramma deion and T. kaykai. Entom. Exp. et App. 105: 165-167

Mochiah, M.B., A.J. Ngi-Song, W.A. Overholt and R. Stouthamer. 2002. Variation in encapsulation sensitivity of Cotesia sesamiae biotypes to Busseola fusca. Entom. Exp. et App. 105: 111-118

Stouthamer, R., van Tilborg M., de Jong, H., Nunney, L. & Luck, R.F. (2001). Selfish element maintains sex in natural populations of a parasitoid wasp. Proc. Royal Soc. London 268: 617-622.

Stouthamer, R., Jochemsen, P., Platner, G.R. & Pinto. J.D. (2000). Crossing incompatibility between Trichogramma minutum and T. platneri and its implications for their application in biological control. Env. Ent. 29: 827-837.

Huigens, M. E., R. F. Luck, R.G.H. Klaassen, F.M.P.M. Maas, M.J.T.N. Timmermans, and R. Stouthamer. 2000. Infectious parthenogenesis. Nature 405:178-179.

Stouthamer, R., P. Jochemsen, G. R. Platner, and J. D. Pinto. 2000. Crossing incompatibility between Trichogramma minutum and T. platneri and its implications for their application in biological control. Environmental Entomology. 29(4): 832-837.

Stouthamer R., Y. Gai, A.B. Koopmanschap, J. D. Pinto, and G.R. Platner. 2000. ITS-2 sequences do not differ for the closely related species Trichogramma minutum and T. platneri. Entomologia Experimentalis et Applicata 95:105-111.

Silva, I.M.M.S., M.M.M. van Meer, M. M. Roskam, A. Hoogenboom, G. Gort, and R. Stouthamer. 2000. Biological control potential of Wolbachia infected (unisexual) versus uninfected (sexual) wasps: laboratory and greenhouse evaluation of Trichogramma cordubensis and T. deion strains. BioControl 10: 223-238.

Stouthamer, R., Jochemsen, P., Platner, G.R. & Pinto. J.D. (2000). Crossing incompatibility between Trichogramma minutum and T. platneri and its implications for their application in biological control. Env. Ent. 29: 827-837.

Hurst, G.D.D., J. H. Graf von der Schulenburg, T.M.O. Majerus, D. Bertrand, I. A. Zakharov, J. Baungaard, W. Vokl, R. Stouthamer, and M.E.N. Majerus. 1999. Invasion of one insect species, Adalia bipunctata, by two different male-killing bacteria. Insect Molecular Biology 8:133-139.

van Meer, M.M.M. and R. Stouthamer. 1999. Cross-order transfer of Wolbachia from Muscidifurax uniraptor (Hymenoptera: Pteromalidae) to Drosophila simulans (Diptera: Drosophilidae). Heredity 82:163-169.

van Meer, M.M.M., F.J.P.M. van Kan, and R. Stouthamer. 1999. Spacer 2 region and 5S rDNA variation of Wolbachia strains involved in cytoplasmic incompatibility or sex-ratio distortion in arthropods. Letters in Applied Microbiology 28:17-22.

Hurst, G.D.D., F. M. Jiggins, J.H.G. Von Schulenburg, D. Bertrand, S. A. West, I. Goriacheva, I. A. Zakharov, J. H. Werren, R. Stouthamer, and M.E.N. Majerus. 1999. Male-killing Wolbachia in two species of insect. Proc. R. Soc. Lond. B 266: 735-740.

van Meer M.M.M., J. Witteveldt, and R. Stouthamer. 1999. Phylogeny of the arthropod endosymbiont Wolbachia, based on the WSP gene. Insect Molecular Biology 8:399-408.

Stouthamer, R., H. Jianguo, F.J.P.M. van Kan, G. R. Platner, and J. D. Pinto. 1999. The utility of internally transcribed spacer 2 DNA sequences of the nuclear ribosomal gene for distinguishing sibling species of Trichogramma. BioControl 43:421-440.

Honda, J., I.M.M.S. Silva, J. Vereijssen, and R. Stouthamer. 1999. Laboratory bioassay and greenhouse evaluation of Trichogramma cordubensis strains from Portugal. BioControl 44:1-11.

Silva, I.M.M.S. and R. Stouthamer. 1999. Do sympatric Trichogramma species parasitize the pest insect Helicoverpa armigera and the beneficial insect Chrysoperla carnea in different proportions? Entomologia Experimentalis et Applicata 92:101-107.

Silva, I.M.M.S., J. Honda, F.J.P.M. van Kan, J. Hu, L. Neto, B. Pintureau, and R. Stouthamer. 1999. Molecular differentiation of five Trichogramma species occurring in Portugal. Biological Control 16:177-184.

van Meer, M.M.M., J. Witteveldt, and R. Stouthamer. 1999. Development of a micro-injection protocol for the parasitoid Nasonia vitripennis. Entomologia Experientalis et Applicata 93:325-329.

Schilthuizen, M., G. Nordlander, R. Stouthamer, and J.J.M. van Alphen. 1998. Morphological and molecular phylogenetics in the genus Leptopilina (Hymenoptera: Cynipoidea: Eucoilidae). Systematic Entomology. 23:253-264.

Schilthuizen, M., J. Honda, and R. Stouthamer. 1998. Parthenogenesis-inducing Wolbachia in Trichogramma kaykai (Hymenoptera: Trichogrammatidae) originates from a single infection. Ann. Entomol. Soc. Am. 91:410-414.

Schilthuizen, M. and R. Stouthamer. 1998. Distribution of Wolbachia among the guild associated with the parthenogenetic gall wasp Diplolepis rosae. Heredity 81:270-274.

Schoenmaker, A., F. van den Bosch, and R. Stouthamer. 1998. Symbiontic bacteria in parasitoid populations: coexistence of Wolbachia-infected and uninfected Trichogramma. Oikos 81:587-597

Riparbelli, M. G., R. Stouthamer, R. Dallai, and G. Callaini. 1998. Microtubule organization during the early development of the parthenogenetic egg of the hymenopteran Muscidifurax uniraptor. Developmental Biology 195:89-99.

Ngi-Song, A. J., W. A. Overholt, and R. Stouthamer. 1998. Suitability of Busseola fusca and Sesamia calamistis (Lepidoptera: Noctuidae) for the development of two populations of Cotesia sesamiae in Kenya. Biological Control 12:206-214.

Pinto, J. D., R. Stouthamer, and G. R. Platner. 1997. A new cryptic species of Trichogramma (Hymenoptera: Trichogrammatidae) from the Mojave desert of California as determined by morphological, reproductive and molecular data. Proc. Entomol. Soc. Wash. 99:238-247.

Schilthuizen, M. and R. Stouthamer. 1997. Horizontal transmission of parthenogenesis-inducing microbes in Trichogramma wasps. Proc. R. Soc. Lond. (B) 264,361-366.

Stouthamer R., R. F. Luck, G. R. Platner, J. D. Pinto, and B. Stephens. 1996. Non-reciprocal cross-incompatibility in Trichogramma deion. Ent. exp. appl. 80:481-489.

Werren J. H., G.D.D. Hurst, W. Zhang, J.A.J. Breeuwer, R. Stouthamer, and M.E.N. Majerus. 1994. Rickettsial relative associated with male killing in the ladybird beetle (Adalia bipunctata). J. Bacteriol. 176:388-394.

Stouthamer, R. and J. D. Kazmer. 1994. Cytogenetics of microbe-associated parthenogenesis and its consequences for gene flow in Trichogramma wasps. Heredity 73:317-327.

Stouthamer R., J.A.J. Breeuwer, R. F. Luck, and J. H. Werren. 1993. Molecular identification of microorganisms associated with parthenogenesis. Nature 361:66-68.

Stouthamer R. and J. H. Werren. 1993. Microbes associated with parthenogenesis in wasps of the genus Trichogramma. J. Invert. Pathol. 61:6-9.

Stouthamer R. and R. F. Luck. 1993. Influence of microbe-associated parthenogenesis on the fecundity in Trichogramma deion and T. pretiosum. Entomol. exp. appl. 67:183-192.

Stouthamer R. 1993. The use of sexual versus asexual wasps in biological control. Entomophaga 38:3-6.

Stouthamer R., R.F. Luck, and J. H. Werren. 1992. Genetics of sex determination and the improvement of biological control using parasitoids. Environ. Entomol. 21:427-435.

Breeuwer J.A.J., R. Stouthamer, W. G. Weisburg, and J. H. Werren. 1992. Phylogeny of cytoplasmic incompatibility micro-organisms in the parasitoid wasp genus Nasonia (Hymenoptera: Pteromalidae) based on 16s ribosomal DNA sequences. Insect Molecular Biology 1:25-36.

Stouthamer R. and R. F. Luck. 1991. Transition from bisexual to unisexual cultures in Encarsia perniciosi Tower (Hymenoptera; Aphelinidae): New data and a reinterpretation. Ann. Entomol. Soc. Am. 84:150-157.

Pinto J. D, R. Stouthamer, G. R. Platner, and E. R. Oatman. 1991. Variation in reproductive compatibility in Trichogramma and its taxonomic significance. (Hymenoptera: Trichogrammatidae). Ann. Entomol. Soc. Am. 84:37-46.

Stouthamer R., J. D. Pinto, G. R. Platner, and R. F. Luck. 1990. Taxonomic status of thelytokous forms of Trichogramma (Hymenoptera; Trichogrammatidae). Ann. Entomol. Soc. Am. 83:475-481.

Stouthamer, R., R. F. Luck, and W. D. Hamilton. 1990. Antibiotics cause parthenogenetic Trichogramma (Hymenoptera/ Trichogrammatidae) to revert to sex. Proc. Natl. Acad. Sci. 87:2424-2427.