HORSEFLIES OF THE SUBFAMILY TABANINAE 113 
colorous hair; third rather wide at base, with a short, sharp, dorsal angle but 
scarcely any excision; annulate portion slender, nearly equal in length to basal 
portion, the divisions distinct. Second palpal segment orange brown, with 
short black hair, moderate in length and thickness. 
Mesoscutum reddish brown, with very faint pale stripes. Rest of thorax, 
legs, and abdomen orange brown. Abdomen often with a median row of faint 
pale triangles. Wing faintly tinged with yellowish brown, the costal cell dis- 
tinctly so; cross veins and furcation, and sometimes all veins, faintly margined 
with brown; venation normal. Hind tibial fringe short and concolorous with 
tibia. 
Male.—A somewhat teneral specimen of what is probably this species has been 
seen by the writer, but its condition is not satisfactory for description. 
Type.—FKemale, in the Vienna Museum. 
Type locality—Kentucky. 
Distribution.—Kentucky and North Carolina to Georgia and 
Florida. April 30 (St. Cloud, Fla.), to September 1 (Okeefenokee 
Swamp, Ga.). In the United States National Museum, 10 females. 
The original description of Zabanus fusconervosus Macquart gives 
no locality, but Walker (27) had it from Florida. Osten Sacken sug- 
gested that it might be the same as ¢wrbzdus, but the description is too 
brief to make determination possible. 
Fairchild informs the writer that this species is strictly nocturnal, he 
having collected it as late as 1 a, m. at light and feeding on cattle. 
TABANUS EQUALIS Hine 
(Fig. 53) 
Tabanus equalis Hine, Ohio Jour. Sci. 23: 205, 1923. 
Tabanus unifornmis Hine, Ohio Jour. Sci. 17: 270, 1917. (Preoccupied by Tabanus 
uniformis Ricardo.) 
FicuRE 53.—Antenna, front view of head, and palpus of Tabanus equalis. 
Rather large; grayish brown, with a median row of gray spots the length of 
the abdomen; a rather distinct spot at furcation; fore tibia uniformly brown. 
Female.—Length 17-22 mm. Eye bare, dark purple, with two green bands. 
Frons about four and one-half times as high as width at base, somewhat wid- 
ened above, with a distinct yellowish patch around median callus; basal and 
median calli reddish brown, the basal callus higher than wide, usually not quite 
touching eyes and narrowly joined to median callus, which is longer and more 
slender; subcallus and top of genae pale yellowish; clypeus and rest of genae 
gray, with nearly white hair. First and second antennal segments dark red- 
dish, with black hair; first somewhat widened apically; second with a slender 
dorsal process; third with a distinct dorsal angle and moderate dorsal ex- 
cision, usually black, with a hind margin of orange brown running from dorsal 
angle around to middle of basal portion ventrally ; annulate portion dark brown 
to black, nearly as long as basal portion, the divisions distinct. Palpus moderate 
in length and thickness, pale reddish or yellowish brown, with short black 
hair. 
Mesoscutum dark reddish, with yellowish pollinose stripes in the usual pat- 
tern; scutellum with a mixture of black and white hair. Pleura and sternum 
pale reddish, with pale hair. Wing hyaline, the cross veins and furcation faintly 
38521°—38——-8 
