244 THE CANADIAN ENTOMOLOGIST, 



SOME DIPTERA FROM ARIZONA. 



BY JAMES S. HINE, STATE UNIVERSITV, COLUMBUS, OHIO. 



Tn a collection of Diptera, taken in Arizona by J. Thomas Lloyd, of 

 Cincinnati, Ohio, during the summer of 1902, I find some species of 

 sufficient importance to warrant recording notes concerning them at this 

 lime. 



Chrysops prociivis, O. S. — Specimens of this species were taken in 

 Oak Creek Canyon, July 5th. I have not seen a record of the species 

 from this territory heretofore. 



Tabanus hyalinipcnnis, n. sp. — Female. Eyes bare ; length 15 mm.; 

 antennae entirely black ; proboscis black ; palpi yellowish, with short 

 white hairs ; face and front brown, but this colour concealed by gray 

 pollen ; lower part of face and cheeks clothed with long white hair ; front 

 rather narrow, slightly narrowed below ; frontal callosity shining brown, 

 nearly square, and as wide as the front and with a linear prolongation 

 above it ; thorax reddish above, with four distinct black stripes, which 

 extend back to the scutellum ; margin of scutellum reddish, with white 

 hair, remainder blackish, with black hair; femora black, with gray pollen 

 and white hair ; tibiae reddish ; apices black, or at least dark ; tarsi 

 black ; wings entirely hyaline ; veins and stigma brown, all the posterior 

 cells wide open. Abdomen black dorsally ; first segment broadly white 

 on each side ; posterior margin narrowly white, and a white spot beneath 

 the scutellum ; second segment with a prominent white triangle on each 

 side of the middle and a white hind margin, which is three or four times 

 as wide external to the triangles as between them ; third segment with a 

 narrow white marking on each side corresponding to the lateral triangles of 

 the previous segment and white hind margin, which expands at the middle 

 into a prominent spot, truncate before and attaining the middle of its 

 segment ; fourth segment with a narrow white hind margin, which ex- 

 pands into a prominent median triangle, which attains the anterior border 

 of its segment ; fifth, sixth and seventh segments with very narrow white 

 hind margins. Ventrally the abdomen is dark, darkest on the middle, 

 and clothed with gray pollen. 



Habitat. — Oak Creek Canyon. Several specimens, two of whicli are 

 before me ; one taken July 2nd and the other July 7th. 



