Martha's Vineyard Atlas of LifeSpecies ListsRobber Flies and Allies (Asiloidea)Checklist of Asiloidea

Checklist of Asiloidea

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Checklist of Asiloidea

Common NameScientific NameNotes
ROBBER FLIES (ASILIDAE)
Asilinae
Asilus sericeusFairly common, preys mainly on Lepidoptera.
Efferia aestuansWidespread and common, the most frequently reported robberfly on Martha's Vineyard.
Efferia albibarbisIn sandy areas, mainly beaches.
Machimus sadyatesCommon late-season generalist.
Neoitamus flavofemoratusUncommon; two records, both June.
Neomochtherus sp.Apparently scarce; one record.
Proctacanthus philadelphicusStatus unclear due to ID difficulties, but probably fairly common. Often preys on Hymenoptera.
Brachyrhopalinae
Cyrtopogon marginalisUncommon; mostly in sandplain habitats.
Holopogon sp.Only one record, but possibly overlooked.
Dasypogoninae
Taracticus octopunctatusUncommon.
Dioctriinae
Stripe-legged RobberflyDioctria hyalipennisFairly common, most records from June.
Laphriinae
Complex Laphria canisApparently scarce; one record.
Laphria champlainiiLocal, strongly associated with scrub oak habitat.
Laphria thoracicaUncommon.
Leptogastrinae
Leptogaster sp.Uncommon.
Ommatiinae
Ommatius tibialisFairly common
Stichopogoninae
Three-banded Robber FlyStichopogon trifasciatusUncommon; sandy areas, mainly beaches.
BEE FLIES (BOMBYLIIDAE)
Anthracinae
Black Bee FlyAnthrax georgicusFairly common in sandy habitat.
Exoprosopa fasciataUncommon.
Sinuous Bee FlyHemipenthes sinuosaUncommon.
Villa sp.The genus appears to be fairly common.
Tiger Bee FlyXenox tigrinusCommon and conspicuous, often in settled areas. Nest parasite of the carpenter bee Xylocopa virginica.
Bombyliinae
Greater Bee FlyBombylius majorCommon early-season species, mostly mid-April to mid-May.
Bombylius mexicanusUncommon.
Sparnopolius confususUncommon.
Toxophorinae
Geron calvusScarce, just one record.
Systropus macerUncommon; late summer, mimic of Ammophila wasps.
STILETTO FLIES (THEREVIDAE)
Therevinae
Brachylinga morataOne record.
Cerocatus sp.One record.
Ozodiceromyia argentataUncommon.
Tabuda variaFairly common in sandplain habitats.