272 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.45. 



apically. Ferruginous; tergum rulo-piceous ; wings hyaline, irides- 

 cent; venation pallid. 



Call, Texas. Described from 1 male collected February 28, 1905, 

 by W. F. Fiske and recorded under "Bureau of Entomology Number 

 Hopk. U.S. 3433a." 



Type.— Cat. No. 15385, U.S.N.M. 



XYELA CALIFORNICA, new species. 



Male. — Length 4.25 mm. Clypeus with a faint carina, the anterior 

 margin without a median tooth, very nearly truncate; supraclypeal 

 area flat; middle fovea represented by a tubercule; antennal furrows 

 complete, meeting behind the anterior ocellus; postocellar furrow 

 obsolete; postocellar area defined laterally by faint furrows; post- 

 ocellar Hne distinctly shorter than the oceUoccipital line; fourth and 

 fifth antennal joints subequal; head and thorax shining, finely granu- 

 lar; stigma strongly tapering beyond the first transverse radius; not 

 quite twice as long as its greatest width; hypopygidium broadly 

 rounded apically. Pale yellow; metathorax above and the abdomen 

 above piceous; antennae pale ferruginous; triangularly shaped spoo 

 occupying the area of the middle fovea, antennal furrows basah}-, 

 two spots on the postocellar area, elongate spots on the vertex 

 between the ocellus and the eye ; spots on the sides of the mesoscutum 

 and a small spot on the pronotum ruf o-f erruginous ; tarsi rufo- 

 ferruginous; wings hyaline, iridescent; venation pale brown. 



Alameda County, Cahfornia. Described from 1 male collected in 

 June by D. W. Coquillett. 



Type.— Cat. No. 15386, U.S.N.M. 



XYELA COLORADENSIS, new species. 



Male. — Length 3 mm. Clypeus with a median tubercule, anterior 

 margin produced in the middle into a low, rounded tooth; supracly- 

 peal area flat; middle fovea indicated; antennal furrows complete to 

 behind the anterior ocellus; postocellar area defined laterally by fine 

 furrows; postocellar furrow obsolete; postocellar line subequal with 

 the oceUoccipital line; fourth and fifth antennal joints subequal; 

 head and thorax opaque, closely granular; scuteUum not impressed; 

 stigma about two and one-half times as long as its greatest width; 

 hypopygidium broadly rounded apically. Black; antennae, clypeus, 

 labrum, palpi, head except spot occupying the area of the middle 

 fovea, antennal furrows, postocellar area, oceUar area, posterior orbits, 

 elongate spots between the ocelli and the eyes which are black, pre- 

 scutum, large median spot on the scutum and the scuteUum yellow; 

 legs below the coxse reddish yeUow; wings hyaline; stigma paUid 

 brown; venation paUid. 



Colorado. One male from the C. F. Baker coUection. 



Type.— Cat. No. 15387, U.S.N.M. 



