Synonyms and other taxonomic changes
Pheneus opacus Coquillett, 1904
Male: 5 mm; Female: 5.5 mm
Wings nearly hyaline (vs. tinged brownish in our other species, V. comstocki).
CA, CO, NV, NM, ID, UT
In the literature, specimens have been recorded from: Arroyo Seco, Pasadena, CA; Pinnacles Nat. Park, CA; Mesa Verde Nat. Park, CO; west of Carson City, NV; various locales north and east of Boise, ID; near Alamogordo, NM; Bandelier National Monument, NM; and Zion National Park, UT.
A detailed description of the male appears in Leonard(1930)
; while the female was described in Pechuman(1938)
The original description by Coquillett
as Pheneus opacus
appeared in Baker(1904).
Baker, C. F. (1904). Diptera. Reports on Californian and Nevadan Diptera, I. Invertebrata Pacifica. 1:17-39 (Full Text
DeLeon, Donald (1938) Notes on the Distribution of Vermileo
in the United States and Mexico with a Description of a New Species. (Diptera: Rhagionidae). Ent. News 49:167-171 (Full Text
Leonard, M. D. (1930). A revision of the dipterous family Rhagionidae (Leptidae) in the United States and Canada. Mem. Am. ent. Soc. 7:1-81 (Full Text
Pechuman, L. L. (1938). A synopsis of the New World species of Vermileo
(Diptera-Rhagionidae). Bull. Brooklyn ent. Soc. 33: 84-89. (Full Text
Petersen, Wade H., and Charles W. Baker. (2006). First record of wormlions (Diptera: Vermileonidae) in Idaho. Journal of the Idaho Academy of Science, 42(1). (Text [only] can be read here
Wheeler, William Morton (1930). Demons of the Dust. New York: W. W. Norton & Company, 1930.
from the Los Angeles Museum of Natural History web site.