132 MISC. PUBLICATION 305, U. S. DEPT. OF AGRICULTURE 
Male.—Kye densely pilose, the areas of large and small facets rather dis- 
tinctly differentiated; and, in the two dried specimens seen, the lower of the 
larger facets yellowish. Body coloration essentially as in female. 
Described from specimen reared from a larva collected May 21, 
1927, in sphagnum near Ithaca, N. Y., which emerged a month later. 
Type.—Female, Canadian National Collection. Paratypes, Cana- 
dian National Collection; three paratype females, Museum of Com- 
parative Zoology No, 14115. 
Type locality —Ottawa, Canada. 
Distribution—British Columbia to Ontario and Maine and south 
to Montana, Wisconsin, and New Jersey. June 8 (Bar Harbor, 
Maine) to August 26 (Cook, Minn.). In The United States Na- 
tional Museum, 29 females, 1 male. 
TABANUS GRACILIPALPIS Hine 
(Fig. 63, A) 
Tabanus gracilipalpis Hine, Canad. Ent. 55: 148-144, 1923; Philip, Minn. Agr. 
Expt. Sta. Tech. Bull. 80: 107, 1981. 
Tabanus cristatus Curran, Canad. Ent. 59: 81-82, 1927. (New synonymy.) 
Medium sized; dark brown, with the orange on sides of abdomen not reach- 
ing to anterior margin of first tergite; subcallus pollinose; palpus very slender ; 
third antennal segment with a distinct dorsal excision. 
FIGuRE 63.—Antenna, front view of head, and palpus of (A) Tabanus gracilipalpis and 
(B) T. philipi. 
Female.—Length 14-15 mm. Eye with dense, short pile. Frons three to 
three and one-half times as high as basal width, slightly widened above, 
yellowish gray, with black hair; basal callus shiny black. somewhat rugose, 
and not touching eyes; median callus black, nearly twice as long as basal 
eallus and rather narrowly joined to it; ocellar tubercle orange brown, the 
vertex Somewhat depressed behind it; subcallus, clypeus, and genae yellow- 
ish gray, with yellowish hair below level of antennae. First two antennal seg- 
ments gray, with black hair; third orange, the annulate portion darker; basal 
portion rather slender but with a strong, blunt, dorsal angle and distinct dorsal 
excision. Second palpal segment slender, dark yellowish brown, with black 
hair. 
Mesonotum black, with very indistinct yellowish stripes and the prescutal 
lobe sometimes tinged with orange. Pleura, sternum, and coxae dark gray, 
with black and pale-yellowish hair. Wing subhyaline, the costal cell yellowish ; 
venation normal. Femora black; tibiae orange brown, the apical two-thirds 
of fore tibia and apices of others blackened; tarsi black, with orange hair below. 
Abdomen above black, with orange on sides from apical third of tergite 1 
to tergite 4, with oblique yellowish spots superimposed on tergites 2 and 3; 
median black band broad, nearly parallel sided, with broad, yellowish, median 
spots; venter yellowish brown, with considerable black at base and apex. 
Male.—Facets of eye nearly uniform in size. Coloration of body essentially 
as in female. The middle of tergites 2-4 with heavy, erect, black hair. 
Type—A female, United States National Museum No. 26822. 
Paratypes, two females, United States National Museum No. 26822; 
one paratype in the collection of Ohio State University. 
Type locality—Camp 334, near Fairbanks, Alaska. 
