Diogmites angustipennis Loew

Diogmites angustipennis Loew, 1866: 23 .

Recognition characters: Light to dark orange species; length 16–30 mm; mystax confined to oral margin, white; thorax orangeish white and orange with two orangeish white stripes dorsally; scutellar bristles 2, black, no scutellar setae; abdomen orangeish white pollinose; abdomen light orange, short light setae dorsally on all segments, few black ones intermixed on segment 2; segments 2–5 with diagonal black stripes laterally; legs orange with black bristles.

Distribution: CROOK: Devils Tower National Monument, 16–18 Aug. 1983; 18 Aug. 1984. GOSHEN: Torrington, 9 Aug. 1950 (REP). NIOBRARA: 32 km NE Lusk, 13 Aug. 1982. PLATTE: Camp Guernsey, WANG, 2001b (CSU. GMAD); Dwyer, 24 Aug. 1960, 1 Aug.1961, 17 Aug. 1962, 3 Sept. 1964 (RJL); Glendo, 3 Sept. 1964 (RJL); 6 July 1972 (SD); Gray Rocks Ranch, Camp Guernsey, 22 July–5 Aug. 2008 (CSU, GMAD); Laramie Peak, Laramie Range, 3 Sept. 1964 (FRH, RJL); Palmer Canyon, Laramie Range, 1,703 m (5,587 ft), 12 July1966 (RJL); 14 Sept. 1951 (REP); Wheatland, 5 Aug.–10 Sept. 1964 (FRH, RJL); 13–31 Aug. 1965 (RJL); 20 July 1966 (ACS); 37 km N of Wheatland, 22 Aug. 1967 (DR), 9–18 Aug. 1972 (SD), 21 Aug. 1972 (RJL), 27–30 July 1973 (SD), 23–30 July 1974 (SD); Guernsey, numerous records, 4 Aug.–5 Sept. (RJL, FRH); Oregon Trail Park, Guernsey, 21 Aug. 1973 (SD). Recorded from Wyoming by: Barnes (2010a) (Crook, Laramie, Niobrara and Platte Counties); Fisher & Wilcox (1997); Geller-Grimm (2018); Lavigne & Holland (1969).

Habitat: Grama-needlegrass-wheatgrass and grama-buffalo grass grassland vegetation types. Open range, short- to mid-grass plains; rangeland (see Lavigne & Holland 1969).

Ethology: Rests on and forages from both soil and tall perennials; courtship (see Lavigne & Holland 1969).

Prey: All prey were taken in the Wheatland area. DIPTERA, Asilidae: Diogmites augustipennis, 20 July1974; Megaphorus guildiana, 9 Aug. 1972, 28 July 1973, 23 July 1974, 29 July 1974; Ospriocerus latipennis, 20 July 1973; HEMIPTERA (Homoptera), Membracidae: Tortistilus collinus (Van Duzee), 27 July 1973 (two records); HY- MENOPTERA, Formica sp. (winged reproductives), 21 Aug. 1972, Aug. 21 1972 (two records); Vespidae: Rygchium annulatum (Say), 9 Aug. 1972. COLEOPTERA, DIPTERA, HEMIPTERA (Heteroptera, Homoptera), HYMENOP- TERA, LEPIDOPTERA, ORTHOPTERA (see Barnes 2010a; Lavigne & Holland 1969; Lavigne and Pfadt 1966).