1919.] NATURAL SCIENCES OF PHILADELPHIA. 187 



and second antennal joints, occiput and pleura, gray to white pruinose. 

 JVIesonotum rather brownish. Scutellum sUghtly shining. Femora 

 and tibiae yellow tomentose. First antennal joint one-half as long 

 as third; second globose; third gradually tapering to a minutely 

 styled apex. Proboscis extending, in length equal to head and 

 thorax together. Palpi short. Length, 7-9 mm. 



9 . Similar, but pile on mesonotum mostly black. 



Type.~c^; Alamogordo, New Mexico, April 22, 1902, (Viereck), 

 [A. N. S. P. No. 6216]. Paratypes.—l d" , 19; topotypical. 49; 

 El Paso, Texas, April 5-26, 1902. 



The series shows little variation. The line of fine white hairs 

 of the third abdominal segment is sometimes wanting, and the black 

 pile of the fourth segment sometimes extends to basal half; the pale 

 pile limited to the mixture on the lateral margin and on the pale 

 ground-part of the fourth and fifth segments. 



Bombylius facialis new species. 



cf . Black; face brown; halteres whitish; apices of middle and hind 

 femora, all tibiae, yellow to tawny. Wings infuscated basally and 

 along costa, becoming hyaline apically and inferiorly. Face shining; 

 mesonotum and scutellum subopaque. Frons yellowish pilose, and 

 yellow tomentose; tubercle, face and antennae, black pilose; occiput, 

 mesonotum, and scutellum, pale yellowish pilose; abdomen also 

 pale except narrow apices of segments 2, 3, 4, which are black. Cheeks, 

 pleura, pectus and venter, white pilose. Femora white tomentose; 

 fore and middle ones with white hairs, and hind one with black 

 bristles, below. Apices of second to fifth abdominal segments pale 

 yellow tomentose which is slightly more dense medially, suggesting 

 a medial dorsal line. Third antennal joint longer than first two 

 together, cylindrical, narrower than second, with short terminal 

 style. Proboscis as long as head, thorax, and abdomen together. 

 First submarginal cell not broader at apex than at base of second 

 submarginal. Length, 7-8 mm. 



Type.— d^ ; Rim of Grand Canyon, Arizona, 7000 feet, alt., May 23, 

 1918, (F. M. Jones), [A. N. S. P. No. 6213]. 



A female from Oracle, Arizona, April 28, (F. M. Jones), is appa- 

 rently conspecific with the above male. It has the dorsal pile more 

 yellowish; tomen of abdomen covering the entire segments; pile at 

 vertex black; anterior part of frons with pale pile and pale tomen; 

 a little pale pile at epistoma; third antennal joint broader and 

 suddenly pointed apically. 



