NO. 1280. NEW NORTH AMERICAN DIPTERA—COQUILLETT. 95 



three to six 3'ellowish; legs yellow, front tibia and their tarsi black, 

 apices of femora, both ends of middle and hind tibise, apices of joints 

 of their tarsi and whole of the last two joints blackish, front tibial 

 four-tifths as long as the lirst joint of their tarsi; wings strongly tinged 

 with yellow on the basal third, followed b}- a wnde brown band extend- 

 ing from costa to fifth vein, remainder of wing hyaline; halteres yel- 

 low; length, 4.5 mm. A female specimen collected May 6, 18'jy, by 

 Mr. C. F. Adams. 



ITahltat. — Kansas City, Missouri. 



Ti/pe.—Cat. No. GlTsU'-S-N.M. 



CHIRONOMUS PALLIATUS, new species. 



Head, mouth parts, and first joint of antennae dark brown, remainder 

 of antenna? livid, the hairs graj^; thorax dark brown, mesonotum 

 opaque, a broad, yellowish median vitta on the anterior half, and a 

 widely separated pair of gray pruinose vittse on the posterior half; 

 abdomen opaque, velvet black, its hairs yellow; legs yellowish white, 

 front and middle femora except their apices, also bases of hind femora 

 brownish, middle tibias tinged with brown, front tarsi only pubescent, 

 front tibia? three-fourths as long as their first tarsal joint, hind tibiae 

 and their tarsi in the male densely clothed with rather long hairs; 

 wings hyaline, slightly tinged with yellow, small crossvein not darker 

 than the adjacent veins, third vein almost straight: halteres whitish; 

 length, 2.5 to -i nmi. Three males and three females collected June 12 

 by Mr. H. S. Barber, except one of the females, which was collected 

 by the writer in June. 



Habitat. — Washington, District of Columbia. 



Ti/jje.~Odt. No. 6iT!», U.S.N.M. 



Family BIBIONID.E. 



BIBIO TENUIPES, new species. 



Black, the ridge l)ehind each humerus 3'ellow, spines of tibia? red- 

 dish brown; hairs of eyes black, those on under side of head, on body, 

 and on upper side of front and middle femora chiefiy light colored, 

 those on remainder of legs chiefly black; spines of front tibia very 

 unequal in size, hind tibia only slightly dilated, the outer side almost 

 straight; wings hyaline, strongly tinged with yellow in the costal cell 

 and with dark gray in the marginal and first basal cells, stignia and 

 veins dark lirown, bases of the fifth and sixth veins subhyaline, small 

 crossvein scarcely one-fourth as long as the first section of the third 

 vein; length, 5,5 mui. A male specimen collected June 5 by Mr. H. 8. 

 Barber. 



llahltat. — Williams, Arizona. 



Type.— C2it. No. 0180, U.S.N.M. 



