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-555- 2(1). Abdomen without paratergites
. . . . . . . . . . . . . . . . .. . . . . . . . . . . ..Palaminus Erichson Abdomen with paratergites . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.3 3(2). Mandible with a bidentate
tooth in the middle; head and pronotum densely to moderately punctured. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . .Pinophilus Eichelbaum Mandible edentate in the middle; head and pronotum
sparsely punctured . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . Araeocerus Nordmann Key to the Genera of Trichopseniinae 1. Mesosternal intercoxal process
acute. . . . . . . . . . . . . . . . . . . . .. . . . . Trichopsenius Horn
Mesosternal intercoxal process broad and blunt. . . . . . . . . . . .
. . . . . . . Xenistusa LeConte This key is extracted from that
of Pasteels and Kistner (1972). Key to the Genera of Euaesthetinae 1. Abdomen without paratergites . . . .
. . . . . . . . . . . . . . . . . . . . . . .. . Stictocranius LeConte Abdomen with paratergites . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 2(1). Labrum with a row of
comb-like teeth anteriorly; head between the eyes convex; pronotum without fovea near base; first visible tergite without a
carina. . . . Euaesthetus Gravenhorst Labrum without teeth; head biimpressed between eyes;
pronotum with several deep foveae along base; first visible tergite with a median
carina.. . . . . . . . . .....Edaphus Motschulsky This key is from Blatchley (1910). Key to the Genera of Lispininae 1. Tarsus three-segmented. . . . .
. . . . . . . . . . . . . . . . . . . . . . . Thoracophorus Motschulsky Tarsus five-segmented . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 2(1).
Anterior coxae contiguous. . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . .
3 Anterior coxae separated by a
spatulate process of the prosternum. . . . . . . . . . . . . . . .. 5 3(2).
Pronotum little narrowed at base. . . . . . . . . . . . . . . . . . . . . . . . Clavilispinus Bernhauer Pronotum half as wide at base as at
apex . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4(3).
Head with two longitudinal frontal impressions; pronotum with two apical
denticles . .
. . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . .. . . .Renardia Motschulsky Head without frontal impressions; pronotum without apical
denticles . . . . .Eleusis Laport 5(2). Abdominal sternites without
diagonal strigae .. . . . . . . . . . . . . . . .... .Nacaeus Bernhauer Abdominal sternites with diagonal strigae which are
sometimes not completely separate from the large punctures. . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . .Lispinus Erichson This key is taken from the study by Moore
and Legner (1974) which gives full generic descriptions and an
illustration of a member of each genus. The use of the name Renardia Motschulsky in
place of Eumalus LeConte is in accordance with the study by Hammond
(1970). Key to the Genera of Osoriinae 1. Anterior tibia much enlarged,
strongly spinose. . . . . . . . . . . . . . . . . . . . . . Osorius Latreille Anterior tibia not enlarged, not or feebly spinose. . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .. 2 2(1).
Last segment of maxillary palpus not narrower than penultimate; truncate, not
dentate. . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . .. . . .Neotrochus Blackwelder |