Carinefferia cressoni (Hine)

Erax cressoni Hine 1919: 134 .

Recognition characters: Grayish black species; length 12–16 mm; mystax mostly white; mesonotal crest formed of long, sparse recurved black bristles, sparse erect setae in males, white bristles in females; 4 white scutellar bristles or part black; females with very long, slender scutellar setae; wings hyaline, veins brown, with or without short stump vein, costa may be dilated; abdomen grayish to grayish white pollinose, in males with long, white parted setae on 2–6, in females short, white setae; tibiae and tarsi reddish or reddish brown.

Distribution: PLATTE: Guernsey State Park, 7–20 June 1978 (RJL, SWB). Recorded from Wyoming by: Dennis & Lavigne (2007) (as Efferia cressoni); Dennis et al. (1986) (as Efferia cressoni); Geller-Grimm (2018).

Habitat: Grama-needlegrass-wheatgrass grassland vegetation type. Rocky hillside and adjacent gully with vegetation typical of the high plains (see Dennis et al. 1986).

Ethology: Forages from soil, rocks, and vegetation depending on substrate surface temperature (see Dennis et al. 1986 as Efferia cressoni).

Prey: COLEOPTERA, DIPTERA, HEMIPTERA (Heteroptera, Homoptera), HYMENOPTERA, LEPIDOP- TERA, ORTHOPTERA (see Dennis & Lavigne 2007; Dennis et al. 1986, both as Efferia cressoni).