

OF WASHINGTON. 171 



Platyura pullata, n. sp. 



Black, the mouth parts, sides of mesonotum, the scutellum. metanotum, 

 hind margins of the abdominal segments, the genitalia, venter, coxae, 

 femora, tibiae, bases of tarsi, and the halteres, yellow; hairs and bristles 

 chiefly black. Thorax thinly gray pruinose, the abdomen polished. 

 Wings hyaline, apex of auxiliary vein opposite base of the third, auxiliary 

 cross-vein near one-fourth of distance from the humeral to apex of auxil 

 iary vein, upper branch of third vein very oblique, terminating about its 

 own length beyond apex of first vein, sixth vein prolonged to the wing- 

 margin. Length 3.5 mm. 



Claremont, Cal. A female specimen collected by Prof. C. F. 

 Baker. 



Type. No. 8045, U. S. National Museum. 



Family BIBIONIDyE. 

 Bibiodes, n. gen. 



Same as Bibto except that the third vein a short distance beyond its base 

 coalesces completely with the fourth vein for a distance equal to the 

 succeeding section of the fourth vein; the small cross-vein is therefore 

 absent. 



lype: The following species : 



Bibiodes halteralis, n. sp. 



r^. Black, the halteres yellow, the hairs yellowish white. Body 

 polished. Outer spur of front tibiag very large, the inner one minute; 

 hind tibiae clavate, enlarging considerably toward the apex, hind tarsi 

 somewhat swollen. Wings grayish hyaline, stigma brown, first and third 

 veins and first section of the fourth, brown, remaining veins nearly 

 colorless. 



9- Like the male except that the front coxae, all femora and the front 

 and hind tibiae are reddish yellow, the femora with a brown stripe on the 

 upper and lower sides and the hind tibiae with a similar stripe on the 

 outer side. Length 3 mm. 



San Mateo Co., Cal. (C. F. Baker); Los Angeles Co., Cal., 

 Dec. 19, Jan. 12, and March 18 (D. W. Coquillett). 'Nine males 

 and one female. 



Type. No. 8033, U. S. National Museum. 



Family LEPTID^E. 



Symphoromyia securifera, n. sp. 



Black; the palpi, halteres, tibiae and apices of femora yellow; hairs 

 black, those on the occiput except along the upper edge, on the palpi, 

 pleura, sides and venter of abdomen, coxae and femora, white. Third 



