Lasiopogon aldrichii Melander, 1923

Lavigne, Robert J. & Dennis, Steve, 2019, Robber flies (Insecta: Diptera: Asilidae) of Wyoming, USA with keys to genera and species, Zootaxa 4662 (1), pp. 1-126 : 112-113

Lasiopogon aldrichii Melander

Lasiopogon aldrichii Melander, 1923c: 139 .

Recognition characters: Brownish species; length 9–11 mm; mystax black; bristles and setae of mesonotum black, postpronotal setae black; metanotal bristles black; scutellar setae and bristles black; abdominal tergites brown pollinose with light brownish gray fasciae confined to apical 3: surstyli (epandrium) of male shining brownish black with black setae; dististyle stalked, swollen at apex in the form of a rectangle; legs black. Can be distinguished from L. cinereus Cole on the basis that the short setae dorsally on the hind femora of L. cinereus are white while those of L. aldrichii are black.

Distribution: ALBANY: Fox Park, 4 July 1938 ( DJK, JNK) ( OS, CATIC); Snowy Range Mtns., Libby Creek, 18 June 1961, 24 June 1952, 3 June 1967 ( RJL); Lower Nash Fork Picnic Ground, Snowy Range Mtns., 26 Aug. 1962 ( RJL). TETON: Jenny Lake, Grand Teton National Park, 24 July 1953 ( CPA). Recorded from Wyoming by: Adisoemarto (1967); Geller-Grimm (2018).

Habitat: Pine-douglas fir forest, and sagebrush steppe shrub and grassland vegetation types.

Ethology: Nothing known.

Prey: PLECOPTERA , Chloroperlidae : Sweltsa coloradensis (Banks, 1898) , Snowy Range Mtns., Albany Co., 3 July 1967.