TABANIDZ OF OHIO. 53 
TABANUS OHIOENSIS Hine. 
Length 10 mm. Opaque black, eyes pilose, legs pale except the 
bases of all the femora which are black; whole body clothed with rather 
long gray hairs and a thin dusting of grayish pollen. 
Female: Front and face very pale yellowish pollinose, palpi pale, 
antennae yellow; irontal callosity and ocelligerous tubercles wanting, 
wings hyaline with pale yellowish veins, abdomen with just a trace of red 
on the sides of the first two segments, otherwise dark and the gray hairs 
on the posterior border of each segment above gives the appearance of 
the segments being margined with gray posteriorly. 
Male: Abdomen plainly red on the sides of the first three segments ; 
otherwise colored as in the female. 
Habitat: Columbus, Danville and Medina. 
This species belongs to the same group with bicolor and tho- 
racicus, but its much darker color serves to recognize it readily. 
Like bicolor if frequents marshy places, and is most readily pro- 
cured by sweeping in grasses growing in such puaces. 
TABANUS PUMILUS Macquart. 
Length 8-10 mm. First segment of the atennae and annulate por- 
tion of the third black, thorax black with distinct gray stripes, wings 
hyaline; abdomen above black with narrow gray margins to the seg- 
ments, a middorsal row of gray triangles, each in connection with the 
posterior margin of its segment, and on either side of this row of tri- 
angles a row of small nearly round gray spots none of which touch 
either margin of the segments. 
Female: Front distinctly wider above, frontal callosity shining 
black, nearly square and occupying nearly the whole width of the front. 
Abdomen sometimes reddish on the sides. 
Male: Head large, the division between large and small facets 
well marked and there is a striking difference in the size of the facets. 
The abdomen in some specimens has a suggestion of reddish on the 
sides. 
Habitat: Medina, Danville and Cincinnati. 
In appearance very much like fratellus of the Northwest, and 
sparus described from New Hampshire. In the latter species the 
gray spots on the sides of the abdomen above are larger, and on 
the second and third segments are broadly contiguous with the 
hind margin. The third antennal segment is noticeably narowed 
in fratellus, while in pumilus it is wide with a distinct basal pro- 
cess. 
In the field this species has habits much like a Chrysops for 
it persists in its attacks on the collector. Specimens are easily 
taken with the net at such times. It is often observed annoying 
horses and cattle. 
