108 MISC. PUBLICATION 305, U. 8S. DEPT. OF AGRICULTURE 
Described from specimens collected by C. A. Mosier and T. E. 
Snyder at Paradise Key, Fla., in April 1918. 
Type.—Female, in the British Museum. 
Type locality.—F lorida. 
Distribution —F lorida and Bahamas. March 25 (Homestead, 
Fla.) to June 4 (Paradise Key, Fla.). In the United States National 
Museum, 56 females, 12 males. 
TABANUS ENDYMION Osten Sacken 
(Fig. 49, B) 
Tabanus endymion Osten Sacken, Mem. Boston Soc. Nat. Hist. 2 (sup.): 
556-557, 1878. 
Medium sized, slender; brown, with a median row of large whitish triangles 
on abdomen; furcation with infuscated spot; fore tibia uniformly brown; 
frons rather narrow; basal callus large, shiny; third antennal segment with 
no dorsal excision. 
Female.—Length 13-18 mm. Bye bare, purple, with two green-blue bands. 
Frons brown, grayer towards vertex, about four times as high as wide, with 
parallel sides; basal callus a brown, shiny rectangle touching eyes and some- 
what higher than wide; median callus a rather narrow concolorous extension 
of about same length. Subcallus, clypeus, and genae pale gray, the former 
slightly tinged with yellow. Lower genae with rather short, nearly white hair. 
Antenna nearly uniformly brown although occasionally somewhat darkened 
apically: first two segments with black hair; third with a distinct dorsal 
angle but no dorsal excision; annulate portion about equal in length to width 
of basai portion. Second palpal segment orange brown or reddish, moderately 
stout at base, with a mixture of short black and white hair. 
Mesoscutum reddish brown, with gray pollen and rather distinct longi- 
tudinal lines of pale hair; scutellum somewhat paler; prescutal lobe with 
white hair above and a prominent patch of black hair along lower margin. 
Pleura, sternum, and coxae gray, with mostly white hair. Wing nearly 
hyaline, the costal cell slightly darker; furcation and cross veins margined 
with brown, the infuscation at base of cell M: somewhat wider than that at 
base of cell M2; cell Rs somewhat narrowed apically. Legs orange brown or 
dull reddish brown, the tarsi somewhat darker, with black and white hair; 
hind tibial fringe short and black. 
Abdomen reddish brown, the tergites with grayish bands which expand 
laterally and even more medianly, where they form broad triangles, largest 
on tergites 2-5; second tergite occasionally with a pair of faint, oblique, sub- 
laterai spots; sternites with very wide, pale bands. 
Male—Head small, the areas of large and small facets distinctly differen- 
tiated along lower margin of former, but their extent limited and the small 
facets extending in a broad band along upper margin of eye; first two antennal 
segments darker than third; palpus dark purplish brown, with black hair. 
Anterior margin of mesoscutum, postalar lobe, and scutellum with white hair, 
the rest of thoracic dorsum mostly black haired; femora somewhat darker 
than in female and no white hair on legs beyond coxae. Pale abdominal bands 
on tergites 2-4 wide, but not forming a median row of triangles; a dark spot 
on center of second tergite anterior to paie band; fifth tergite with pale band 
divided into three spots; sixth entirely dark; venter with pale bands on 
sternites 2-4 not wider than those dorsally, the sternites posterior to these 
mostiy black. 
Type—The female of a pair of cotypes, Museum of Comparative 
Zoology No. 4047, herein designed as lectotype. 
Type locality —Georgia. 
Distribution —Atlantic coast from North Carolina to Florida. 
May 11 (West Palm Beach, Fla.) to September (Mimsville, Ga.). 
In the United States National Museum, five females, two males. 
