532 



HEMIPTERA. 



and the front, and almost as near each other as the eyes, while 

 the fore wings are without closed cells in the disk. The spe- 

 cies most injurious to the grape-vine is the Erythroneura vitis 

 Harris (Fig. 535). It is pale j-ellow, with two red lines on 

 the head, while the hinder edge of the thorax, including the 

 scutellum, the base of the fore wings, with a broad band across 

 their middle, are scarlet, and the wings are tipped with black. 

 In Jassus the species are larger than the foregoing, with 

 stouter bodies. The head is very broad and short, concave at 

 base, and the ocelli are placed between the eyes on the front, 

 which is broader than long, and the ovipositor is recurved. 

 Jassus irroratus Say is not uncommonly seen on herbage. 



The common Helochara comtnunis Fitch, a grass green spe- 

 cies, is found in great abundance in damp, grassy places, in 

 ccmipany with the yellow-legged, closely allied, Diedrocephala 

 .noUipes and Diedrocejyhala quadrivittata Say, which has the 

 vertex flattened and four scarlet stripes on the wings. In Tet- 

 tigonia the antennae are half as long as the body. T. bijida 



Say is common in 

 grass. In Cercojyis the 

 prothorax is large and 

 hexagonal. 



The Clastopfera pro- 

 \^ tens of Fitch is a 

 common insect in blue- 

 berry fields and cran- 

 berry pastures. It is 

 short and thick, with a bright yellow head, with a black band 

 on the fi-ont margin of the vertex, and a broader one on the 

 front, and a black dot near the apex of the elytra, while the 

 legs are yellowish white, and the tarsi are black. It varies 

 greatly in its colors. In Aphrophora the head is of moderate 

 size, with two ocelli approximate on the crown of the head ; 

 the prothorax is trapezoidal and the posterior tibiae have two 

 teeth. A. quadrinotata Say is found on grape-vines. 



FuLGORiD.E Leach. This famil}^, as stated by Westwood, is 

 at once known by having only three distinct joints in the an- 

 tennae, and the two ocelli are placed beneath the eyes. The 



