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STREPSIPTERA
(Derived from Bohart, 1941 and Schlinger & Doutt, 1964 by E.
F. Legner)
(Email Contacts)
All known species of Strepsiptera are parasitic, thus a
complete key to the order is given. It
is derived from Bohart (1941) and Schlinger & Doutt (1964). It was noted by Schlinger & Doutt
(1964) that males are unknown for Stichotrematidae and females are unknown
for Myrmecolacidae.
Key to Adults of Families of Strepsiptera
[Refer to <Guide> for more
illustrations & <Strepsiptera> for order details]
Families Absent From This Key (View Key #2)
Bahiaxenidae, Bohartillidae, Corioxenidae
Cretostylopidae, Mengenillidae, Protoxenidae
STREPSIPTERA <Habits>; <Adults>
& <Juveniles> [Latest Classification]
Males
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1a. Tarsi with fewer than
5 segments and clawless
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1b. Tarsi with 5 segments and clawed
......... Mengeidae
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2a. Tarsi with 4 segments
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2b. Tarsi with 2-3 segments
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3a. Antennae with less
than 7 segments
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4b. Only 3rd antennal segment laterally
fan-like .......... Stylopidae
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5a. Tarsi with 2
segments; antennae with 4 segments .......... Elenchidae
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5b. Tarsi with 3 segments; antennae with 7
segments ......... Halictophagidae
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Females
]NOTE: All females are
wingless, and links show males primarily]
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1a. Adult stage partially
endoparasitic, without legs, antennae or eyes
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1b. Adult stage free living, with legs, antennae
and eyes ........... Mengeidae
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2a. Cephalothorax without
hook-like projections behind spiracles
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2b. Cephalothorax with hook-like projections
behind spiracles .......... Myrmecolacidae (Stichotrematidae = Synonym)
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3a. Cephalothorax with single
pair of spiracles; thoracic segments not well defined
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3b. Cephalothorax
greatly elongated, with 2 pairs of spiracles, or with head and thoracic
segments distinct ............ Callipharixenidae
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4a. Parasitoids of Homoptera or Gryllidae
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4b. Parasitoids of
Hymenoptera ............. Stylopidae
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5a. Brood-passage opening
a narrow, linear or oblong slit; thorax prominent ..........
.............................................................................
Halictophagidae
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5b. Brood-passage
opening broad and semicircular; thorax reduced and ringlike in back of
brood-passage opening. ............. Elenchidae
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