Feb., 1905.] 
Hemiptera of Ohio. 
275 
Thamnotettix furculatus n. sp. Size and general pattern of 
clitellarius with dorsal spot narrower, more elongate, dark spots- 
at base of antennae and elongate, forked process on female ventral 
segment. Length of female, 5 mm. 
Vertex slightly longer on middle than at e}’e, very slightly 
angulate, intermediate in this respect between clitellarius and 
exquisites. Front full, almost tumid, clypeus widening toward 
tip and broadly rounded, lorae not broad not reaching margins of 
genae. Pronotum, lateral margins rounded, nearly twice as wide 
as long, posterior border almost straight. 
Color, dark chocolate to fuscous with bright yellow markings, 
vertex bright yellow with hind border black or fuscous. The 
common band of occiput and anterior third of pronotum extend- 
ing over the posterior part of the eye. Two prominent black 
spots on the margin between vertex and front, a black spot below 
the base of each antenna, posterior two-thirds of pronotum bright 
lemon yellow of same color as discal claval spot, scutellum dark 
brown with darker spots on either side of median space. Base 
of part of clavus brown, claval suture and about half the width 
of elytra dark fuscous to black with a broad fuscous apical band, 
the costal-half of elytra back to the apical cells hyaline tinged 
with yellowish, beneath pale yellow to whitish. 
Genitalia: The last ventral segment of female deeply emar- 
ginate with a prominent tooth at the edge of the emargination 
extending about one-fourth of the segment beyond the outer 
margin. A long narrow median process reaching as far back as 
the hinder tooth and with a deep incision thus forming a narrow 
elongate fork. 
One specimen, female, was secured from Sandusky River 
about twenty miles above Sandusky, July 2, 1904. It must have 
been taken in sweeping in woodland or in low vegetation border- 
ing woods. It is very closely related to clitellarius being scarcely 
larger but the common claval spot narrows to each end, the ver- 
tex is slightly more produced, the base of antennae spotted and 
above all the genital segment entirely different from any species 
known to me. 
A specimen of what is evidently the male of this species was 
taken in Columbus, June 20, 1901. The color markings and 
shape of vertex agree perfectly and the length, 4.5 mm., is in 
usual proportion for the sexes in this genus. The genitalia differ 
decidedly from those of clitellarius the valve being long, the hind 
edge strongly angled; plates broad convexly narrowing to tip, 
reaching to tip of pygofer, a submarginal dark line, marginal 
cilia yellow. 
P'hlepsius collitus Ball. This species has been separated from 
fulvidorsum, with which it was formerly confused, by Prof. Ball. 
