Promachus albifacies Williston, 1885: 63
Robber flies (Insecta: Diptera: Asilidae) of Wyoming, USA with keys to genera and species
Lavigne, Robert J.
Dennis, Steve
Zootaxa
2019
2019-08-30
4662
1
1
126
4MS2M
Williston
Williston
1885
[151,515,605,632]
Insecta
Asilidae
Promachus
Animalia
Diptera
58
59
Arthropoda
species
albifacies
Promachus albifaciesWilliston, 1885: 63.
Recognition characters:Brown and black species; length 19–28 mm; mystax straw white with at most a few black setae below; thorax brown pollinose; scutellar setae black and white, bristles black; wings nearly hyaline; abdomen black, brown pollinose laterally, patches of white setae laterally; legs largely black occasionally with some red posteriorly. Distribution:GOSHEN: 20 July1950( REP). PLATTE: E flank of Laramie Peak, Laramie Mtns., 17 July 1964( FRH, RJL). NATRONA: Alcova, 8 July 1907(specimen in CAS). NIOBRARA: 8 July 1949( DGD). Recorded from Wyomingby: Fisher & Wilcox (1997); Lavigne & Dennis (1994). Habitat:Pine-douglas fir forest (clearings within the forest where shrubs and grasses are dominant), sagebrush steppe shrub and grassland, and grama-needlegrass-wheatgrass grassland vegetation types. At Laramie Peak, P. albifacieswas found foraging from lodgepole pine and mountain mahogany on the edge of a mountainside clearing; mixed coniferous forest. Ethology:Forages from vegetation. Prey:All records were taken at Laramie Peak, Platte Co., on 17 July 1964. HEMIPTERA (Heteroptera), Reduviidae: Rhynocoris ventralis(Say); LEPIDOPTERA, Lasciocampidae: Malacosomasp. possibly californicum fragile(Strech). [ COLEOPTERA(see Lavigne & Dennis 1994)].