Cyrtopogon glarealis 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 : 67

Cyrtopogon glarealis Melander

Cyrtopogon glarealis Melander, 1923b: 113 .

Recognition characters: Black species; length 14–16 mm; third antennal segment orange; mystax black with few central white setae; thorax gray and brown pollinose, pile black; wings tinged with brown, darkened on veins; macrotrichia of costal vein black; scutellum shining black, spot of pollen at base, scutellar setae black; abdomen shining black, tergites 2–4 with yellowish gray posterior fasciae, lateral setae on segment 2 black on males, white on females; legs, femora black, tibiae reddish brown, darker at apex, fore tibiae clothed with dense white pile on male; fore and mid tarsi yellow, clothed with white pile, hind tarsi reddish brown with short black pile.

Distribution: ALBANY: Pole Mtn., 19 June 1963 ( LJS). CARBON: Sierra Madre Mtns., 25 Aug, 1967. SUB- LETTE: Mulligan Park, Bridger National For., 6 Aug. 1968 ( RJL); TETON: Cascade Canyon, Grand Teton Park, 2,743 m (9,000 ft), 12 Aug. 1958 ( DCL); Grand Tetons, Jenny Lake, 28 June 1938 ( ECVD) (specimen in CAS); Grand Teton Park, 2,356 m (7,730 ft), 27 July 1957 (AD & HD-CU); Grassy Lake, Targhee National For., 8–12 Aug. 1966 ( RJL), 10–11 Aug. 1967 ( RJL); Moran Canyon, Grand Teton Park, 2,256 m (7,400 ft), 4 Aug. 1966 ( RJL); Swan Lake, Grand Teton Park, 7 Aug. 1966 ( RJL), Herron Pond, Grand Teton Park, 7–13 Aug. 1966 ( RJL). YEL- LOWSTONE NATIONAL PARK: Dunraven Pass, 25 June 1930 ( ECVD) (specimen in CAS); Lower Geyser Basin, Aug. 1931 ( VMT-BYU); Madison Junction, 4 July 1926 ( CBP), 1, 2 July 1934 ( WLJ) (specimens in CAS); Pahaska Tepee, E entrance, 11–13 Aug. 1964 ( FRH, RJL). Recorded from Wyoming by: Adisoemarto (1967) (Madison Junction, YNP); Cannings (1994); Cole (1969); Dennis & Lavigne (2007); Evans (1966) ( YNP); Fisher & Wilcox (1997); Geller-Grimm (2018); Lavigne (1970a); Lavigne & Bullington (2001); Lavigne & Dennis (1994); Martin & Wilcox (1965); Wilcox & Martin (1936) (Yellowstone Park, Madison Jct., July 4, 1926; Dunraven Pass, 25 June 1930).

Habitat: Douglas fir forest and pine-douglas fir forest, and sagebrush steppe shrub and grassland vegetation types. Collected on banks of streams flowing through mixed coniferous forest of lodgepole pine, sub-alpine fir and spruce, in open glades in forest associated with ponds and lakes ( Lavigne 1970a).

Ethology: Rests on and forages from rocks, soil, and in sunlit areas on tree trunks and logs; courtship (see Lavigne 1970a).

Prey: All prey were taken on 6 Aug. 1968 at Mulligan Park, Bridger National For., except as noted. DIPTERA , Anthomyiidae : Hylemya platura (Meigen) ; Hylemya sp., Pahaska Tepee, E entrance Yellowstone Nat’l Park, 13 Aug. 1964; Muscidae : Phaonia sp. (two records); Spilogona sp.; Simuliidae : Simulium venustrum Say, Pahaska Tepee , 13 Aug. 1964. COLEOPTERA , DIPTERA , EPHEMEROPTERA , HEMIPTERA (as Homoptera), HYME- NOPTERA, LEPIDOPTERA (see Dennis & Lavigne 2007; Lavigne 1970a; Lavigne & Dennis 1994).