Holopogon seniculus Loew, 1866

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 : 79

publication ID	https://doi.org/ 10.11646/zootaxa.4662.1.1
publication LSID	lsid:zoobank.org:pub:366A1E81-946C-4ED4-8A65-C51151FE87CC
persistent identifier	https://treatment.plazi.org/id/7708F17A-B86C-E553-63F1-FA9560A0FF88
treatment provided by	Plazi
scientific name	Holopogon seniculus Loew
status

Treatment

Holopogon seniculus Loew View in CoL

Holopogon seniculus Loew, 1866: 36 View in CoL .

Recognition characters: Grayish species; length 5–7 mm; mystax yellowish white; thorax gray pollinose covered with long white setae dorsally; wings hyaline with yellowish veins both macrotrichia and microtrichia white; abdomen shining black, lateral setae on abdominal segment 1 white; legs black with white setae and bristles.

Distribution: CONVERSE: Dave Johnson Plant/Station 5 and 6, Glenrock, 23 June–19 August 1973 ( SD, RJL). GOSHEN: Jay Em, 22 June 1955 ( WAD). LARAMIE: Pine Bluffs, 13 July 1969. NIOBRARA: Lusk, 14 July 1937 ( HTP-UK); 9 Aug. 1950 ( DGD); Manville, 16 July 1947 ( DGD). PLATTE: Camp Guernsey, WANG, 2001b ( CSU, GMAD); Cherry Creek, SE of Wheatland, 30 June 1966 ( RJL); Dwyer, 5 July 1961 ( RJL); 20 July1962; Guernsey, 14 June–20 July 1962, 25 June 1963 ( RJL); Hartville, 9 July 1964 ( RJL); Platte Co., 4 July 1945 ( REP). SHERIDAN: Sheridan, WANG, LTA, 14–15 June 2007 ( CSU, GMAD). SWEETWATER: Farson, Big Sandy, Aug. 1931 ( VMT-BYU). Recorded from Wyoming by: Adisoemarto (1967); Back (1909) [Lorrey’s Lake (Sept. 7) and Carbon County ( AMNH)]; Cole (1969); Dennis et al. (1986) [as prey of Carinefferia cressoni (as Efferia cressoni )], (2010); Geller-Grimm (2018); Lavigne et al. (1993); Martin (1959) [Lusk, Aug. 26, 1895 (W. M. Wheeler)].

Habitat: Sagebrush steppe shrub and grassland, and grama-needlegrass-wheatgrass grassland vegetation types. Open rangeland; especially in wind sheltered gullies (see Lavigne et al. 1993).

Ethology: Forages from tips of bare branches of the shrubs three-leaf sumac ( Rhus trilobata Nutt. ) and alderleaf mountain mahogany ( Cercocarpus montanus Raf. ); courtship (see Lavigne et al. 1993).

Prey: DIPTERA , Cecidomyiidae ; Lestrimiinae; Scenopinidae : unidentified; Syrphidae : Paragus tibialis (Fallen) , Guernsey, 25 June 1963. DIPTERA , HEMIPTERA (Heteroptera, Homoptera) , HYMENOPTERA , PSOCOP- TERA, THYSANOPTERA (see Dennis et al. 2010; Lavigne et al. 1993).