1942] 
Tabanidas from Panama 
11 
ish. Mesonotum and pleura rich cinnamon brown, clothed 
with orange brown hairs. In the Panama specimen there 
is a tuft of dark hair below the wing insertion, like puncti- 
pleura Hine, but very much more weakly developed. Pre- 
scutellum and disc of scutellum densely black haired, with 
two short white diagonal marks on the mesonotum just be- 
fore the prescutellum. Posterior margin of scutellum whit- 
ish, with long orange hairs. Legs cinnamon brown, the fore 
pair darker. Wings lightly fumose, darker along the veins. 
Costal cell yellow. Abdomen dark cinnamon brown, im- 
maculate, black haired above, greyish pollinose beneath. 
The description drawn mainly from a finely preserved 
specimen from British Honduras. The Panama specimen 
is the largest, a little darker, with slightly more slender 
antennae and palpi. 
Distribution: Mexico to Panama. 
Panama records: 1 $, Buena Vista, Chiriqui Volcano, 
1000 ft., May, 1926 (J. D. Smith). 
Tabanus (Bellardia) albocirculus Hine (Figs. 4, 4a, 4b) 
1907, Ohio Naturalist, VIII, 4, p. 227 ( $ ; Tucurrique, 
Costa Rica) ; 1925, Occ. Pap. Mus. Zool. Univ. Michigan, 
No. 62, p. 23. Dunn, 1934, Psyche, XLI, 3, pp. 173-174 
(Chiriqui, Panama) (in part). Curran, 1934, N. Am. Dipt., 
p. 152, fig. 27 (head). Krober, 1929, Zool. Anz., LXXXIII, 
pp. 122-123, fig. 5 ( $ ; Costa Rica) ; 1934, Rev. Ent., IV, 
3, p. 295. 
This species is quite variable, both in size and color. 
Specimens from Chiriqui are largest and darkest, some 
quite black, and hence most closely agreeing with the type. 
Specimens from the Atlantic side are also dark, while those 
from the dry area along the Pacific coast are quite red and 
rather small. The condition of the first posterior cell is also 
somewhat variable. Nearly all specimens have it open, a 
few broadly so, but most strongly coarctate. One specimen 
from Chiriqui has the cell closed, stalked in one wing, closed 
at the margin in the other. The wings may be almost glass 
clear, strongly brown margined along the veins, or quite 
uniformly fumose. The eye has three broad green bands 
in life. T. xipe Krober is exceedingly close. I have speci- 
mens from the states of Para, Bahia, Goyaz and Matto 
