228 
The Ohio Naturalist. 
[Vol. VIII, No. 2, 
of the third vein with a long appendage; legs brown, apexes of 
the front tibiae and the tarsi of all the legs, especially beyond the 
metatarsi, darker. Abdomen brown, a middorsal stripe and an 
irregular spot on each side of each segment gray, but these gray 
markings are not well defined nor conspicuous, narrow posterior 
border of each segment gray. 
Male. Head large, line of separation between the large and 
small facets well defined, otherwise this sex is like the female. 
Specimens of both sexes taken at Puerto Barrios, Guatemala, 
from twigs and branches of mangrove, growing just at the edge 
of the water. Nearly related to T. cribellum but differing from 
it in color and in having a wider front. 
Tabanus texanus n. sp. Length 12 to 14 millimeters. A 
species much like T. costalis in appearance. Eye with a single 
purple band; thorax wdth stripes not very plainly marked; costal 
cell of the wing plainly infuscated; abdomen with three series of 
yellowish triangles. 
Female. Antenna yellow with the annulate portion of the 
third segment black; first segment slender, third with a distinct 
angle near the middle of the upper side of the basal portion; 
palpi yellowish, thick at the base, narrowed toward the tip and 
nearly as long as the proboscis. Front rather wide with parallel 
sides; face and front clothed with yellow dust; frontal callosity 
nearly as wide as the front, square, shining black and with an 
unconnected spot above. Thorax grayish yellow above and 
with evident stripes. Wing hyaline, costal cell distinctly infus¬ 
cated. Front coxa yellow, except at apex, other coxae and all 
the femora brown; basal half of the front tibiae and all the other 
tibiae except the apexes yellow; tarsi brownish. Abdomen with 
three series of yellow triangles separated by drak brown areas. 
The triangle at the middle of each segment has its base on the 
posterior margin of its segment and also reaches the anterior 
border where it connects with the triangle which precedes; the 
lateral triangular spots have an oblique appearance and plainly 
reach the whole length of their respective segments. 
Male. Head rather large; eyes plainly divided into areas of 
large and small facets. Color as in the female. 
A mlae and female taken at Galveston, Texas, in May, by 
Dr. F. H. Snow. 
Chrysops separatus n. sp. Length 8 millimeters. Body 
black, wing with costal margin, crossband and apical spot black, 
apical spot entirely separated from the crossband. 
Female. Antenna elongate, first segment reddish brown at 
base, black at apex, second and third black, third longer than the 
other two combined. Cheeks, middle of the face, region around 
the antennae and the sides of the front clothed with a yellow dust. 
Facial and frontal callosities and vertex shining black. Thorax 
