130 MISC. PUBLICATION 305, U. S. DEPT. OF AGRICULTURE 
Female.—Length 17-19 mm. Eye densely pilose, deep purple, with four blue- 
green, diagonal bands. Frons yellowish, with black hair, about four and one 
half times as high as width at base and distinctly widened above; ocellar 
tubercle small, reddish, surrounded by a reddish-brown denuded area; basal 
callus dark reddish, small, rounded above and not quite touching eyes; median 
callus black, slender, and narrowly joined to basal callus; subcallus pale yel- 
lowish. First two antennal segments yellow, with black hair; third with basal 
portion orange, annulate portion dark brown or black; basal portion nearly as 
broad as long, the dorsal angle prominent but the dorsal excision shallow; 
annulate portion slender, equal in length to basal portion. Clypeus and genae 
pale yellowish, with concolorous hair. Second palpal segment pale yellow. 
slightly swollen basally, with short black hair. 
Mesonotum black, with pale-yellow hair and faint indication of stripes; 
humeral and prescutal lobes yellow brown. Pleura. sternum, and coxae mostly 
dark, with pale-yellow hair. Wing hyaline, the costal cell pale yellow: venation 
normal. Femora black, except apices of middle and hind pair, which are yellow 
brown; tibiae yellow brown, the apex of the fore tibia darkened; tarsi dark 
brown, the fore tarsus darkest; hind tibial fringe yellow brown. 
Abdomen broadly yellow brown on tergites 14, the median black stripe 
narrow, widening on tergite 4, the following tergites entirely black; sternites 
1 yellow brown, the rest black, all with yellow hair. 
Male—Unknown. 
Type—Female, lost. 
Type locality —California. 
Distribution.—British Columbia to California. July 8 (Kaslo, 
British Columbia) to pee 8 (Squaw Lake, Mount Rainier, 
Wash.). In the United States National Museum, 4 females. 
This species was made a synonym of epistates oe Sacken by 
Hine, but McDunnough recognized the species, pointing out its larger 
size. It is close to afinis Kirby, but the third antennal segment is not 
so strongly excised, the palpus is slightly thicker, and the abdominal 
coloration is more yellow brown than orange red. The hind tibial 
fringe is also orange rather than black. The specimen figured in 
Howard’s Insect Book under the name of Tabanus affinis is this 
species, 
TABANUS AURILIMBUS, new species 
(Fig. 62, 4) 
Medium sized; abdomen broadly orange laterally: hind tibial fringe orange; 
eye pilose; ocellar tubercle present: palpus rather slender. 
Female—Length 16-17 mm. Eye with short pile, purple, with four green 
bands. Whole head dull yellowish. the sides of clypeus somewhat grayish; 
clypeus and genae with yellowish hair. Frons about three and one-half times 
as high as width at base, slightly widened above; basal callus brownish to 
black, about as high as wide, not quite touching eye margins and rounded 
above; median callus black, slightly longer than basal callus, the connection 
with basal callus usually thinly pollinose: ocellar tubercle prominent, orange ta 
reddish brown. First two antennal segments yellow brown, with concolorous 
hair, the second with a strong dorsal process; third orange, the annulate por- 
tion and dorsal margin from dorsal angle to base of annulate portion black; 
basal portion moderately stout, the dorsal angle prominent but obtuse, the 
excision moderate. Second palpal segment rather slender, yellowish brown, 
with concolorous hair. 
Mesonotum blackish, with five narrow but distinct vane nee stripes in 
the usual pattern: prescutal lobe orange, with black hair: upper portion of 
pleura brownish, the lower part, sternum, and coxae gray, all with yellowish- 
white hair. Wing subhyaline, the costal cell brownish and all veins faintly 
margined with brown; venation usually normal, one paratype with a short 
stump from vein R: in both wings. Femora black, the apices somewhat brown- 
ish, particularly on the middle and hind femora: tibiae orange brown, the fore 
tibia darkened apically; hind tibial fringe strong, concolorous with tibia; tarsi 
dark brown to black, the fore tarsus darkest, 
