Dec, 1918] N ear ctic Species of the Genus Laphria 151 



Laphria vultur Osten Sacken. 



Laphria vultur, Osten Sacken, C. R. Western Diptera; descriptions of new 

 genera and species of Diptera from the region west of the Mississippi and especially 

 from California. Bui. U. S. Geol. and Geogr. Survey of the Territories, III, 1877, 

 p. 286. (Woods of the Coast Range above Santa Cruz, Calif.; Webber Lake, 

 Sierra Nevada.) 



A large black* species with copious yellowish-red to reddish-orange 

 hair; mystax and pleural hair lightest in color, that of abdomen most 

 intense. Wings fumose, interior of cells more hyaline. Male forceps 

 long, decurved near tip where there is a defiexed lobe on each side; 

 falcate process long and rather acute. (Fig. 1). Length, 22-28 mm. 



Localities represented: Kaslo, B. C, May 30, June 5, 

 H. G. Dyar; July 15, R. P. Currie, (U. S. N. M.)t; Ainsworth, 

 B. C, July 11, 1903, in cop., R. P. Currie, (U. S. N. M.); Bear 

 Lake, B. C, July 21, 1903, J. W. Cockle, (U. S. N. M.); Fry 

 Creek, B. C, July 23, 1903, in cop. H. G. Dyar, (U. S. N. M.); 

 Victoria, B. C, July 17, 1901, (Hine) ; Goldstream, B. C, 

 Aug. 10, 1902, (Hine); Washington, Kincaid, (111. State Lab.); 

 Mt. Hood, Ore., H. K. Morrison, (U. S. N. M.); Yellowstone 

 Park, June 26, 1907, W. Robinson (U. S. N. M.); North 

 Cheyenne Canyon, El Paso Co., Colo., July 2, 1914, Champlain, 

 (U. S. N. M.). 



Laphria sericea Say. 



Laphria sericea Say, Thomas. American Entomology, 1, 1824, pp. 12-13, PI. 6, 

 (United States). The Complete Writings of Thomas Say on the Entomology of 

 North America. 1, 1859, pp. 12-13. 



A black species with yellowish golden to ardent red gold hair on 

 upper surface of thorax and abdomen. Beard, defiexed pile on face, 

 hair on coxae and lower pleural plates and tuft under root of wing 

 whitish in female, tawny in male; bristles of mystax, tufts of hair on 

 neck, vertex, and just below margin of thoracic dorsum, and sometimes 

 short pile on anterior disk of thorax black. Hair of legs black, mixed 

 with white, especially on posterior surfaces. Wings clear to blackish 

 hyaline. Forceps of male genitalia, long, slender; defiexed lobes less 

 prominent than in vuUur and falcate process shorter. (Fig. 2). Length 

 16-25 mm. 



A female specimen from White Mts., Vt., Geo. Dimmock 

 (M. C. Z.) which is referred to here differs in having the thoracic 

 dorsum clothed with pale yellowish pile. 



* Unless otherwise stated, the ground color throughout of species described 

 in this paper is black. 



t Abbreviations following data indicate collections in which the specimens 

 now are deposited. In full these collections are those of W. S. Fisher, J. S. Hine, 

 Illinois State Laboratory of Natural History, Museum of Comparative Zoology, 

 University of Kansas, United States Biological Survey, United States National 

 Museum and W. R. Walton. 



