1904] JOHNSOX: — FOUR NEW DIPTERA I 5 



SOME NOTES, AND DESCRIPTIONS OF FOUR NEW DIPTERA. 



BY CHAS. W. JOHNSON, BOSTON, MASS. 



Tabanus (Therioplectes) hinei, n. n. 



Therioplectes being now considered at most only a subgenus of Tabanus neces- 

 sitates the changing of Therioplectes po/itus Johnson (Entom. News, XI, 325, 1890) 

 which is preoccupied in the genus Tabanus by T po/itus Wdiik^x (The Entomologist, 

 V, 256, 1 871). I therefore propose for this species the new name Tabanus hinei in 

 honor of Prof. Jas. S. Hine, who is making a special study of the Tabanidae. 



During the past summer I have obtained four specimens of this species. Two 

 males, Bridgewater, Mass., July 11, collected by Mr. Jos. A. Cushman, and two 

 females, Woods Holl, July 25, and Auburndale, Mass, July 12, collected by the 

 writer. The $ which has not been described, differs but little from the $ in gen- 

 eral appearance except that the dorsal stripe of the abdomen is somewhat broader, 

 with a slight dorsal spot or triangle on segments one to four, due chiefly to a small 

 tuft of white hair, readily denuded. One of the males also shows a tuft of white 

 hair on the second segment. Since writing the above I have seen three males of 

 this species from Massachusetts, in the Museum of Comparative Zoology, Cam- 

 bridge, one of which was labeled by Osten Sacken, " male of an unknown species." 



Tabanus (Therioplectes) whitneyi sp. nov. 



9 . Face, front and palpi reddish brown, frontal callus dark brown, narrowly 

 triangular and extending as a narrow line to the base of the prominent ocelligerous 

 tubercle; a space between the frontal callus and base of the antennae red; anten- 

 nae red, third joint not excised, and sho\ving no trace of a projecting angle ; eyes 

 apparently glabrous and a uniform brown, moisture failing to reveal the greenish 

 bands so characteristic of the group. Thorax reddish brown, with grayish pollen 

 forming four longitudinal stripes interrupted at the transverse suture, the two median 

 stripes extending to the scutellum as a single dorsal line ; pleurae reddish with gray 

 pollen and red pile ; scutellum brownish black, sides red. Abdomen reddish brown, 

 a broad dorsal stripe and a wide lateral margin on all the segments, dark brown ; 

 the third and fourth segments bears a large quadrate central whitish area, the third 

 having anteriorly a black triangle and the fourth a dorsal stripe, dividing it equally 

 and leaving two regular squares ; taking both segments together the maculation 



