Laphria vultur
Osten Sacken, 1877
Laphria vultur is a of robber fly in the Asilidae, described by Osten Sacken in 1877. The Laphria is notable for containing species that are effective mimics of bumble bees, a trait shared with the unrelated genus Mallophora. These flies use their resemblance to stinging Hymenoptera as a defensive strategy against . Like other robber flies, members of this genus are aerial predators that capture prey in .
Pronunciation
How to pronounce Laphria vultur: /ˈlæf.ri.ə ˈvʌl.tʊr/
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Identification
Laphria are distinguished from other mimics in the Asilidae, particularly Mallophora, by their thick (Mallophora has a thin terminal segment on the antennae) and generally less hairy bodies. Laphria vultur specifically can be differentiated from by features of the male terminalia and other subtle morphological characters, though precise field identification to species level typically requires examination of specimens.
Distribution
The is known from North America, though specific locality records for L. vultur are sparse in the provided sources. The Laphria is broadly distributed across North America.
Behavior
Members of the Laphria are known to be particularly fond of small, flying beetles as prey. They hunt from perches, spotting prey, apprehending it in mid-air, and returning to a leaf or log to feed. The mimicry serves a dual purpose: potential avoid them assuming they can sting, while potential prey may mistake them for bees seeking nectar and approach more closely.
Ecological Role
Human Relevance
Robber flies in the Laphria are often encountered by naturalists and photographers due to their impressive size and convincing mimicry, which can lead to initial misidentification as bumble bees. Their wary nature makes them challenging subjects for close observation.
Similar Taxa
- MallophoraAlso contains mimics in Asilidae, but distinguished by thin terminal antennal segment and generally hairier bodies
- BombusBumble bees are the hymenopteran models for Laphria mimicry; distinguished by two pairs of wings, different wing venation, and presence of a sting
More Details
Taxonomic note
Laphria vultur was described by Osten Sacken in 1877. The name has been subject to some taxonomic revision, with some former Laphria now placed in related genera.