Key to the Subfamilies of Asilidae [WIP - North America only ATM]

1a. Abdomen remarkably long and slender; pulvilli and alula absent............................Leptogastrinae
1b. Abdomen typically shorter and more robust; pulvilli and alula usually present............................2
2a. Eyes large, goggle-like.......................................................................................................Trigonomiminae
2b. Eyes not so.......................................................................................................................................................3
3a. Wing cell r1 stalked or closed at wing margin...................................………............................................4
3b. Wing cell r1 open............................................................................................................................................6
4a. Antennae typically cylindrical throughout; often mimics of Hymenoptera...................Laphriinae
4b. Antennae with a thin, tapering element; typically grey, elongate flies.............................................5
5a. Antennae plumose....................................................................................................................Ommatiinae
5b. Antennae not plumose.....................................................................................................................Asilinae
6a. Vertex conspicuously expanded....................................................................................Stichopogoninae
6b. Vertex not so (except Willistonina)...........................................................................................................7
7a. Acanthophorite spines always absent; tibial spur always absent; dense fringe of setae on hind
femur and tibia; antennae situated on tubercle……....................................................................Dioctriinae
7b. Acanthophorite spines generally present; tibial spur present or absent; dense fringe of setae
on hind femur and tibia absent; antennal tubercle present or absent…………………………………………...8
8a. Legs with flattened setae....................................................................................................Willistonininae
8b. Legs without flattened setae........................................................................................................................9
9a. Large, curved spur present on fore tibia (except Archilestris).................................Dasypogoninae
9b. Tibial spur absent, or if present, thin and sigmoid................................................................................10
10a. Typically large, elongate flies; tibial spur always absent..........................................Stenopogoninae
10b. Generally small, compact flies; thin, sigmoid tibial spur present or absent.....Brachyrhopalinae

Posted by myelaphus myelaphus, September 24, 2018 20:50

Comments

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My goal is for this key to aid non-experts in IDing photos. It will need significant refinement, so please test it out! The last 3 couplets in particular need greater attention.

Posted by myelaphus about 2 years ago (Flag)
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Wow, you've been busy. Looking good.

Posted by gcsnelling about 2 years ago (Flag)

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