Efferia prattii
(Hine, 1919)
Laredo Hammertail
Efferia prattii is a of robber fly in the Asilidae, originally described by Hine in 1919. The species is known from the southern United States, particularly Texas, and is referred to by the "Laredo Hammertail." As a member of the Efferia, it belongs to a group of large, predatory flies that are active hunters of other insects. The species has been documented in entomological surveys in western Texas, where it was observed at mercury-vapor lights in juniper chaparral alongside other asilid species.
Pronunciation
How to pronounce Efferia prattii: /ˈɛf.ɛ.ria ˈpræt.i.aɪ/
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Habitat
Juniper chaparral in western Texas has been documented as for this .
Distribution
Southern United States, particularly Texas. Documented from Val Verde County in western Texas.
Seasonality
Observed in late May in western Texas.
Behavior
have been observed at mercury-vapor lights, suggesting or activity patterns.
Ecological Role
of other insects, as characteristic of robber flies in the Asilidae.
Similar Taxa
- Efferia sp.Other in the Efferia occur sympatrically in western Texas and share similar preferences and light-trapping . The genus Efferia itself is distinguished from related genera such as Triorla by morphological features, though species-level identification requires expert examination.