Dec, 1918] Nearctic Species of the Genus Laphria 159 



Type, male, from San Bernardino Co., Calif., Coquillett, 

 (U. S. N. M.). Paratype, male, Los Angeles Co., Calif., 

 Coquillett, (U.S. N. M.). 



Laphria rapax Osten Sacken. 



Copy of original description: 



^'Laphria rapax n. sp. d' Head, posterior part of the thorax and 

 two first abdominal segments with whitish, the remainder of the 

 abdomen except the genitals, with ardent rufous pile; legs black. 

 Length 20 mm. The lower part of the head and base of the proboscis 

 beset with whitish pile; face likewise, but many, black, erect hairs are 

 mixed with the white ones; hair under the antennse altogether black. 

 Front part of the thoracic dorsuin with short black pile; the hind 

 part with longer, semi-recumbent, whitish pile; scutellum with some 

 whitish pile; male forceps very large; wings as usual brownish on the 

 discal half and hyaline on the proximal. Hab. — Webber Lake, Sierra 

 Nevada, July 28. A single male. "* 



Laphria carbonarius Snow. 



Laphria carbonarius nom. nov. Williston, Ms. Laphria anthrax Williston (nee 

 Meigen). Snow, W. A. List of Asilidse, supplementary to Osten Sacken's Catalogue 

 of North American Diptera. 1878-1895. Kansas University Quarterly 4, No. 2, 

 Oct. 1895, p. 181. 



Laphria anthrax WiWiston, S. W. Trans. Am. Ent. Soc. 11, 1884, p. 29. (Northern 

 California.) 



Copy of original description: 



"Laphria anthrax n. sp. Female — Black, head, thorax, legs, and 

 first two segments of the abdomen wholly black pilose ; remainder of the 

 abdomen, except the extreme tip, densely clothed with close-lying bright 

 yellowish-red pile. Wings blackish. Length, 21 mm. 



"The pile of the face is abundant, on the lower part composed 

 mostly of bristles. Dorsum of thorax shining, wholly covered with 

 short black pile, except the short black bristles above the wing. The 

 third-seventh segments of the abdomen are wholly concealed beneath 

 bright orange-red pile; the pile lies very closely and thickly. Tip of 

 abdomen and venter black pilose. Legs wholly black pilose. Wings 

 dark brownish or blackish ; the anal and second basal cells in large part 

 hyaline; the middle of the fourth and fifth posterior cells lighter. 



"One specimen. Northern California (0. T. Baron). 



"This species must resemble L. rapax O. S., and it is possible it 

 may be the other sex, but the entire lack of white pile renders such a 

 view improbable. " 



* Osten Sacken, C. R. Western Diptera. Bui. U. S. Geol. & Geogr. Survey 

 Terr. 3, 1877, p. 286. 



