HETEROPTEROUS HEMIPTERA. 347 



coriuni, and two or three on the membrane : beneath dusky, 

 varied with yellowish lineations on each side of the venter : feet 

 yellowish thighs dusky at tip; tibia with about two dusky annu- 

 lations. 



Length over one-fourth of an inch. 



This species, like many others, is subject to vary. It is some- 

 times yellowish, variegated with brownish, but the thoracic or- 

 bicular spots and the annulations of the second joint of the an- 

 tennae distinguish it. 



The following species having large and very prominent eyes ; 

 antennas, excepting the first joint, remarkably slender and fili- 

 form, situated on the front above an imaginary line drawn be- 

 tween the anterior angles of the eyes, and with elongated feet, 

 may be separated under the subgeneric name Cylajpus. [792] 



26. C. tenuicornis. — Blackish : hemelytra one or two spotted 

 with whitish; antennas, second joint white at tip; thighs annu- 

 lated. 



Inhabits Indiana. 



Head somewhat variegated with yellowish; almost vertical) 

 deeply impressed between the eyes, and with an impressed line : 

 eyes very prominent: antennae elongated, first joint robust, 

 black; remaining joints slightly thickened at tip and terminating 

 in a white spot : thorax punctured, anterior margin somewhat 

 elevated, with an impressed line; an obsolete slender pale line 

 proceeds thence to the base : scutel punctured, with a hardly 

 elevated, carinated line, tip obsoletely whitish : hemelytra punc- 

 tured; an obsolete interrupted and abbreviated band near the 

 middle and a rather more distinct band near the tip of the coria- 

 ceous portions, whitish; beneath piceous; a triangular spot over 

 the interval between the intermediate and posterior feet, pale 

 green: feet long, pale reddish-brown; thighs biannulate with 

 whitish beyond the middle : tibiae with an obsolete annulus a 

 little beyond the middle. 



Length one-fifth of an inch. 



Readily distinguishable by the tenity [tenuity] of the antenna 

 and the very prominent eyes; the head also is almost vertical 

 and the feet are long. In the magnitude and prominence of the 

 eyes it resembles Salda and Acanthi^. 



