110 MISC. PUBLICATION 305, U. 8. DEPT. OF AGRICULTURE 
wings as described by Rondani, so he feels that the name should be 
used. Macquart’s description of 7’. cingulatus more nearly approaches 
this species than any other Nearctic species known, but the descrip- 
tion is not clear enough to make this determination certain and, in any 
case, the name cingulatus is preoccupied by Thunberg. From a study 
of two paratypes of 7’. subfronto Philip and a number of other speci- 
mens agreeing at least partially with the description, it is the writer’s 
opinion that it cannot be considered specifically distinct. There 
seems to be complete intergradation in color, and the correlation 
between size and coloration does not hold. 
TABANUS RECEDENS Walker 
(Fig. 50, B) 
Tabanus recedens Walker, List of the Specimens of Dipterous Insects in the 
Collection of the British Museum, pt. 1, p. 147, 1848; Williston, Kans. Acad. 
Sci. Trans. 10: 188-1389, 1887. 
Tabanus confusus Walker, List of the Specimens of Dipterous Insects in the 
Collection of the British Museum, pt. 1, p. 147, 1848. (New synonymy.) 
Tabanus catenatus Osten Sacken (not Walker), Mem. Boston Soe. Nat. Hist. 
2 (pt. 4, No. 4) : 483-484, 1876; Smithsn. Misc. Collect. No. 270, p. 227, 1878. 
Tabanus fur Williston, Kans. Acad. Sci. Trans. 10: 189-140, 1887. (New 
synonymy.) . 
Large; dark brown, with a median row of small, but elongate, white triangles 
on abdomen; fore tibia unicolorous; furcation with distinct brown spot; frons 
rather broad; third antennal segment with deep dorsal excision. 
Female.—Length 21-25 mm. Eye bare, purple, with two green bands. Frons 
yellowish gray, two and one-half to three times as high as wide, with nearly 
parallel sides; basal callus chestnut brown, usually not touching eyes, slightly 
higher than wide, and tapering to the concolorous, rather narrow, median 
eallus; the latter often extending upward to join a triangular, flat, denuded 
area at vertex; subcallus, clypeus, and genae dull yellowish, below with con- 
ecolorous hair. Antenna orange, the first two segments slightly darker, with 
mostly yellowish hair; third with a prominent, acute, dorsal angle and deep 
dorsal excision; annulate portion about as long as greatest width and two- 
thirds length of basal portion. Second palpal segment orange brown, with a 
mixture of concolorous and a few black hairs. 
Mesoscutum dark brown, with distinct gray lines in the usual pattern; 
seutellum entirely gray. Pleura, sternum, and coxae yellowish gray, with 
yellow hair. Wing subhyaline tinged with yellowish brown, the costal cell and 
veins dark orange brown and fureation and cross veins margined with brown; 
venation normal. Legs almost uniformly orange brown, with brownish hair, 
but occasionally some black hair in hind tibial fringe. 
Abdomen above dark reddish brown, with a median row of distinct, but 
rather small, elongate, whitish triangles; triangle on second tergite reaching 
about half way to anterior margin, the others nearly or quite contiguous; ex- 
treme lateral margins of tergites bordered the full length with whitish pollen 
and hair; venter reddish brown, with thin grayish pollen. 
Male.—Eye with large and small facets but line of differentiation not always 
distinct, the difference in size not being marked. Coloration of body as in 
female. 
Type.—Female, in the British Museum. 
Type locality.—F lorida. 
Distribution.—Massachusetts to Florida. May 29 (Odessa, Del.) 
to August (Lakehurst, N. J.). In the United States National 
Museum, 12 females, 4 males. 
The type of Tabanus confusus was examined by Hine and found 
to be the same as 7’. vecedens, and while the former has page priority 
it does not seem desirable to change so well established a name. The 
type localities of these species, Georgia and Florida, respectively, are 
