Culicoides oregonensis Wirth and Rowley

Phillips, Robert A., 2022, Culicoides Latreille and Leptoconops Skuse biting midges of the southwestern United States with emphasis on the Canyonlands of southeastern Utah (Diptera: Ceratopogonidae), Insecta Mundi 2022 (907), pp. 1-214 : 104

Culicoides oregonensis Wirth and Rowley

Culicoides oregonensis Wirth and Rowley, 1971: 162 (numerical characters; key; female, male; fig. female antenna, palpus, eye separation, spermathecae, male genitalia, parameres; Oregon). Wirth et al. 1985: 26 (numerical characters; fig. female wing).

Diagnosis. ( Tables 14, 15) Wing pattern reduced; r 2 dark; pale spots only at tip of costa, on r-m crossvein; scutellum about same brown as scutum; spermathecae ovoid, subequal, without sclerotized necks (as in Fig. 277 C. palmerae ); ventral apodeme of gonocoxite simple; gonostylus not abruptly bent to an L-shape, entire lateral contour convex; aedeagus broadly Y-shaped, median process narrow, nearly parallel-sided, <0.1 as wide as basal arm spread, ~5× longer than median width; parameres separate, with hooklike bend at ~0.8 and sharp tip.

Distribution. Oregon, Northern California.

Adult behavior. The mandibular and lacinial teeth on the female indicate it feeds on vertebrate blood; however, its hosts are unknown.

Remarks. No C. oregonensis were examined.