Feb., 1905.] Hem^'ptera 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 eye, very slightly 

 angulate, intermediate in this respect between clitellarius and 

 exquisitos. Front full, almost tumid, clypeus widening toward 

 tip and broadly rounded, lorse 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 w4dth 

 of elytra dark fuscous to black w^ith 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. 



Phlepsius coUitus Ball. This species has been separated from 

 fulvidorsum, with which it was formerly confused, by Prof. Ball. 



