HORSEFLIES OF THE SUBFAMILY TABANINAE 111 
farther south than the locality of any specimens seen by the writer 
with the possible exception of the Zabanus fur type. Osten Sacken 
wished to retain the name catenatus for this species although ad- 
mitting that it was the same as Walker’s recedens and not the same 
as Walker’s catenatus. A type specimen of Tabanus fur Williston 
was examined by the writer and it proves to be this species. The 
type locality of fur is Florida although this specimen bears the label 
“Conn. Williston.” It must be noted that this is not the same fur as 
the one which Williston (24) described in 1901. 
TABANUS NEFARIUS Hine 
(Fig. 51, A) 
Tabanus nefarius Hine, Ohio Nat. 8: 224, 1907. 
Rather large; brown, with a median row of grayish triangles on abdomen; 
fore tibia unicolorous; a brown spot at furcation; frons narrow; R; nearly or 
quite closed apically. 
B 
Fiegurn 51.—Antenna, front view of head, and palpus of (A) Tabanus nefarius and 
B) T. coarctatus. 
Female.—Length 21-22 mm. Eye bare. Frons brown, about five times as 
high as width at base, somewhat widened above; basal callus orange, higher 
than wide, not quite touching eyes, and narrowed above; median callus a 
slender orange line, about twice as long as basal callus and joined to it; sub- 
callus, clypeus, and genae brown, with concolorous hair below. Antenna 
orange, the first two segments with black hair and third with a prominent 
dorsal angle which projects forward slightly; annulate portion scarcely more 
than half length of basal portion. Second palpal segment of moderate length 
and thickness, brown, with black hair. 
Thorax brown, the mesoscutum with faint yellowish-brown stripes; hair 
around wing base paler than the brownish hair elsewhere. Wing subhyaline, 
with prominent brown spots at furecation and cross veins and a _ yellowish- 
brown costal cell; cell Rs closed or strongly narrowed apically. Legs nearly 
uniformly brown, with concolorous hair including the well developed hind 
tibial fringe; tarsi darker. 
Abdomen brown, above with a median row of grayish-yellow triangles joined 
to the narrow posterior borders of same color on each tergite. 
Male.—Unknown. 
Cotypes.—Three females, in the collection of the Ohio State Uni- 
versity. 
Type localities—New Orleans and LeCompte, La. 
Distribution.—Southern Louisiana. June 18 to August 24 (New 
Orleans). In the United States National Museum, one female. 
TABANUS COARCTATUS Stone 
(Fig. 51, B) 
Tabanus coarctatus Stone, Ent. Soe. Wash. Proc. 37: 13, 1935, 
Medium sized; brownish, with a median row of large triangles on abdomen; 
fureation with a small infuscated spot; fore tibia uniformly brown; frons 
