34 MISC. PUBLICATION 305, U. S. DEPT. OF AGRICULTURE 
STENOTABANUS PSAMMOPHILUS (Osten Sacken), new combination 
(hiigs 2" 2B) 
Tabanus psammophilus Osten Sacken, Mem. Boston Soc. Nat. Hist. 2 (pt. 4, 
No. 4) : 445, 1876; Schwarz, Ent. Soc. Wash. Proc. 18: 210, 1916. 
Small; white; antenna nearly uniformly yellowish brown; scarcely any infus- 
cation at furcation; frons broad; a stump vein from vein R:. 
Female.—Length 10-13 mm. Eye bare, bluish, with three green bands, the 
median one very narrow. Whole body white, with white hair. Frons about 
two and one-half times as high as width at base, somewhat widened above; 
basal callus transverse, black ; occasionally a short, indistinct, median line above, 
but no median callus; subcallus flat. Antenna pale yellowish brown, the 
annulate portion of third segment darker; third segment with a low, rounded, 
dorsal swelling and no excision; annulate portion equal in length to basal 
portion, stout, the divisions distinct. Second palpal segment white, with 
white hair. 
Mesoscutum with faint indications of stripes. Wing hyaline, veins pale 
basally and anteriorly, darker apically, the stigma yellowish; cross veins and 
furcation sometimes narrowly margined with dark brown; a strong stump at 
base of vein R:; cell Rs not narrowed apically. Legs somewhat yellowish; 
hair of hind tibia entirely white. 
In poorly preserved specimens from which some of the pollen has been 
abraded, the body has a reddish tint, and the pale hind margins of the abdominal 
segments are more conspicuous than is normal. 
Male-——Kye rounded above, the area of large facets extensive and sharply 
differentiated from area of small ones, which is confined to lower margin. 
Antenna entirely yellowish. 
Type—The female specimen of a pair in the Museum of Com- 
parative Zoology, No. 4040, herein designated as lectotype. Two 
males in the United States National Museum are probably of the 
cotype series. 
Type locality —Fort Capron, Fla. 
Distribution Southern Florida. February (Miami) to June 18 
(Cocoanut Grove, Dade County). In the United States National 
Museum, 4 females, 12 males. 
The writer refers to the genus Stenotabanus the West Indian 
species Tabanus atlanticus Johnson and 7. nervosus Curran. Both 
are closely related to psammophilus. The former differs in having 
the annulate portion of the antenna black and some black hair on 
the palpus; the latter, in its much more coarsely spotted wing and its 
basally darkened third antennal segment. 
STENOTABANUS FLORIDENSIS (Hine), new combination 
(Fig. 12, 0) 
Tabanus floridensis Hine, Ohio Nat. 12: 513, 1912. 
Small; gray, with three rows of gray spots on abdomen; frons broad, nar- 
rowed above. 
Female—tLength 10-12 mm. Eye bare. Frons slightly over twice as high 
as width across basal callus, somewhat narrowed above; frons and subeallus 
brownish gray; basal callus black, transverse, protuberant; median callus 
small, separated from basal callus or connected by a narrow line. First, 
second, and extreme base of third antennal segments orange brown, the third 
darker apically, the annulate portion black; basal portion of third segment 
rounded above, with no distinct angle; annulate portion slightly shorter than 
basal portion. Clypeus and genae gray, with grayish-white hair. Second palpal 
segment slightly swollen basally, with slender apex, yellowish gray, with a 
mixture of black and white hair. 
Thorax black above, gray except for extreme sides, which are yellowish 
brown, and an indication of yellowish-brown lines in usual pattern; rest of 
thorax and coxae gray, with whitish hair. Wing hyaline, with dark-brown 
