OF THE TABANIDJi: OF THE UNITED STATES. 451 



nearly pai'.allel ; callosity black, with an indistinct prolongation above ; antennre reddisli, 

 annulate portion of the third joint black, nearly as long as the body of the joint ; the latter 

 somewhat broad, with a distinctly projecting npper angle. Thorax grayish yellow (a gray 

 ground color being clothed with golden yellow hairs). Abdomen with a consjiicuous longi- 

 tudinal 3-ellowish white stripe in the middle, somewhat expanded at each incisure, and two 

 lateral stripes, very much attenuated posteriorly, and formed of a series of oblique, alniost 

 coalescent spots, one on each segment ; the intervals between the central and the lateral 

 stripes are black (which color thus forms two distinct, well marked, nearly parallel stripes, 

 enclosing on both sides the central pale stripe) ; the two lateral stripes are bordered on the 

 outside by a second pair of more or less distinct black stripes, formed by a series of black 

 oblique spots, one on each segment ; when these spots are less distinct, the lateral pale 

 stripes almost coalesce Avith the reddish yellow lateral margins of the abdomen ; on seg- 

 ments five and six the black prevails, but in well preserved specimens both central and lat- 

 eral stripes are still visible. All the pale colored portions of the abdomen show, under the 

 magnifj'ing glass, a dense covering of golden hairs. Venter reddish yellow, mixed with 

 blackish, especially towards the tip, both colors being softened by a dense covering of yel- 

 lowish hairs. Legs black ; front tibia3 yellov.'ish at base, four posterior tibiie yellow, except 

 the tip, which is black ; femora clothed with a dense yellowish gray pollen. Wings grayish 

 hyaline ; costal cell with a distinct brownish yellow tinge ; first posterior cell broadly open. 



Ifale. The black abdominal stripes are usually less dark, and hence, less well defined ; 

 especially the base and sides of the abdomen are usually more reddish. Length, 10-1-3 mm. 



Hub. A common species in the Middle and Western States; accoi-ding to Bellardi, also 

 in Mexico. 



I have seen specimens from Florida( Lake Harney, May 5 ; Messrs. Hubbard and Schwarz), 

 very small (9-10 mm.), and very like T. nhjrovittahis in appearance; nevertheless I would 

 rather refer them to T. costalis. One of them had the third antennal joint entirely black. 



The eyes of the female are light green, with a single purple crossband in the middle. 



I accept the traditional and very probable interpretation of Wiedemann's description of 

 the male, although, taken literally, it would render the identification doubtful. I am not 

 sure about the interpretation of Mr. Bellardl's description. 



T. vicarlus Walker is most probably this species ; perhaps also T. bcdfhnorensis Macq. 



26. Tabanus fulvulus. 



Tahanus fuldulus Wiedemann, Auss. Zw., I, p. 1.53, 66. 



3Iale and female. Front and vertex clothed with grayish fulvous pollen ; callosity (?) 

 nearly square, brownish or blackish; above it, but not connected with it, is a short, stout, 

 smooth line of the same color; face and cheeks whitish (see the observation at the end) ; 

 palpi ( s ) rather stout, pale yellowish white, with blackish hairs ; in the male they are 

 whitish ; antennae : first joint reddish yellow, with black hair ; third joint red ; its upper 

 angle well marked and projecting, its annidate portion black or brown, much shorter than 

 the remaining portion of the joint ; (in my only male specimen the third joint is alto- 

 gether red, perhaps not fully colored). Thorax and scutellum yellowish fulvous above, 

 with golden hairs, mixed with black ones (in coloring and ajjpearancc the thorax resembles 



