Doering: Lepyronia quadrangularis. 517 



The genus Leypronia is separated by Ball from the other genera 

 of Aphrophorinse by these characteristics: Anterior margin of ver- 

 tex between front and eyes sharp ; ocelli nearly equally distant from 

 eyes and each other; rostrum short, not exceeding middle coxae; 

 anterior margin of pronotum rounded; corium without terminal 

 membrane ; whole upper sm-face densely pubescent, hiding sculptur- 

 ing and venation. 



KEY TO SPECIES * 



A. Margins of the vertex regularly rounding to the obtuse tip; elytra 

 islightly angularly inflated, nearly twice longer than their combined 

 width (folded), graj-ish, testaceous, with a distinct V on each elytron. 



quadrangularis (Say) . 



AA. Margins of vertex straight or concave, the tip slightly produced; elytra 

 inflated, no more than one-half longer than their combined width 

 (folded). 

 B. Small, testaceous, rather narrow; the vertex broad and short, 

 shorter or only equaling the pronotum in length; apex of elytra 

 broadly subhyaline. angulifera (Uhl). 



BB. Large, nearly uniform grayish, general form globose; vertex longer 

 than pronotum. gibbosa (Ball) . 



The original description of Say is given herewith: 



Brownish-cinereous elytra with two oblique brown bands confluent at the 

 outer margin; beneath black; feet annulate with pale. Body brownish 

 cinereous, covered with dense, minute hairs; head obsoletely spotted; eyes 

 fuscous, a pale longitudinal line on the middle, in which is a brown central 

 line; stemmata indistinct, black; thorax emarginate at the anterior angles 

 for the reception of the eyes, and deeply emarginate behind for the reception 

 of the scutel; a double series of obsolete, indented spots before; scutel, tip 

 and basal angles acute; hemelytra pale brownish cinereous; an oblique black- 

 brown fascia from inner basal angle is confluent at the middle of the exterior 

 margin, with an oblique fascia, which terminates near the sutural tip; tip with 

 a small blackish curve; region of humerus dusky, beneath black; feet black; 

 thighs annulate with pale; posterior pair of tibiae pale, armed with two 

 robust spines behind and numerous small ones at the tip; posterior tarsi 

 armed with spinules at the tips of the first and second joints beneath; abdomen 

 black; tail pale beneath. 



The following is a technical description: 



Form. Length: 9 6.4 to 7.2 mm.; 5 6 to 6.8 mm. Width: 5 3 to 3.2 

 mm.; $ 2.4 to 3 mm. 



Vertex flat or depressed; length and width about equal, as long as pronotum, 

 margins rounding to a bhmt apex; tylus large, parallel margined, nearly one- 

 half length of vertex; eyes level with vertex, distended below; front somewhat 

 inflated, rising gradually from the sides, margins convex, slightly longer than 

 wide; clypeus only shghtly inflated, twice as long as wide; pronotum flat, twice 

 as wide as long, slightl}' emarginate anteriorly with transverse rows of im- 



*BaIl, E. D. A Review of the CereopidsB of North America North of Mexico. Rept. la. 

 Acad. Science, 1898. 



