family
Robber Flies
Asilidae
Field notes
The Asilidae are the robber fly family, also called assassin flies. They are powerfully built, bristly flies with a short, stout proboscis enclosing the sharp, sucking hypopharynx. The name "robber flies" reflects their expert predatory habits; they feed mainly or exclusively on other insects and, as a rule, they wait in ambush and catch their prey in flight.
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Range
Greener is more native, amber more introduced; paler is less certain. How this was decided
Most observed native robber flies All
Native to the US, by observations.
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Eastern Lion Fly
Promachus rufipes
10,883 observations
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Plain-tailed Hanging Thief
Diogmites neoternatus
8,084 observations
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Common Micropanther
Atomosia puella
5,726 observations
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Northern Triorla
Triorla interrupta
4,041 observations
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Cowboy Laphria
Laphria macquarti
1,692 observations
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Glittering Plumetop
Ommatius gemma
557 observations
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Black Hanging Thief
Diogmites platypterus
475 observations
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Beach Robber Fly
Laphystia litoralis
334 observations
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Ashy Laphria
Laphria cinerea
229 observations
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Gulf Dunerobber
Laphystia texensis
145 observations
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Western Bladetail
Machimus occidentalis
124 observations
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Silvery Pirate
Stichopogon argenteus
118 observations
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Western Yellow-backed Laphria
Laphria astur
84 observations
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Northern Goldenrobber
Callinicus pollenius
81 observations
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Ochre-faced Dunerobber
Laphystia ochreifrons
63 observations