NO.1280. NEW NORTH AMERICAN BIPTERA—COQVILLETT. 87 



toward its apex; lonj^'th, 1 lum. A feinulo spocinioii collected Auoust 

 8 by Mr. H. S. Bai])er. 



Ilahitat. — Las Vegas Hot Springs, New Mexico. 



Type.— Csii. No. 6158, U.S.N.M.' 



CERATOPOGON PILOSUS, new species. 



Head black, face yellowish brown, mouth parts and antennae brown, 

 first joint of the latter yellow, eyes contiguous, mesonotum brownish 

 yellow, opaque, its hairs yellow, scutellura and middle of metanotum 

 brown, pleura yellow, abdomen dark brown, bases of the segments and 

 the venter yellow, -legs yellow, not spinose, bearing many very long 

 hairs, first tarsal joint slightly shorter than the second, the last two 

 subequal in length; claws minute, of an equal size, empodia large; 

 wings hyaline, wholly covered with brown hairs except those along 

 basal half of costa and a patch at apex of third vein, which are light 

 yellow, third vein contiguous to the first, ending at middle of length of 

 wing, apex of first vein near two-thirds length of the third, fourth vein 

 forking slightl}' beyond the small crossvein; halteres yellow; length, 

 1.5 mm. A female specimen collected May 3 by Mr. H. S. Barber. 



Ifahitat. — Washington, District of Colum])ia. 



Type.—C^t. No. 6159, U.S.N.M. 



CERATOPOGON ANCORUS, new species. 



Head yellow, upper half of occiput black, antenna brown, the joints 

 except the last one only slightly longer than broad; thorax and scu- 

 tellum light j-ellow, mesonotum somewhat polished and marked with 

 a large black spot, which is prolonged anteriorl}^ in the middle and 

 posteriorly at each hind angle, extending the entire length of the 

 mesonotum; al)domen brown, the narrow sutures and the venter yellow; 

 legs yellow, not spinose, first tarsal joint nearly twice as long as the 

 second, last two joints subequal in length, claws minute and of an 

 equal size; wings hyaline, almost wholly but sparse!}^ covered with 

 hairs, third vein contiguous to the first and to the costal vein, ending 

 near middle of length of wing, fourth vein forking slightly beyond 

 the small crossvein; halteres light 3'-ellow; length, nearly 1 mm. A 

 female specimen collected by Mrs. A. T. Slosson. 



Ilahitat.- — Biscay ne Baj^ , Florida. 



Type.— Cat. No. 6160, U.S.N.M. 



CERATOPOGON BELLUS, new species. 



Head black, upper part of occiput silvery pruinose, antennas yellow, 

 the apices brown, plumosit}^ yellow; body black, upper half of pleura 

 and outer margins of scutellum except at the apex whitish; mesono- 

 tum opaque, gray pruinose, and marked with many bi'own dots 

 arranged in longitudinal rows, the front end silvery prainose and 



