218 IOWA ACADEMY OF SCIENCES. 



normal pattern, often slightly irregular, obscured by the coriaceous struc- 

 ture and the dense pubescence: wings, with the third sector from the 

 marginal one, forked, the intramarginal A'ein interrupted between the 

 third and fourth sectors; legs short and stout, hind tibia armed with two 

 stout spurs and a large crescent of spines: whole dorsal surface covered 

 with a dense prostrate pubescence. 



Our representatives of this genus are all grayish or brown- 

 ish-cinereous, with traces of oblique fuscous-markings on the 

 elytra; in size they range all the way from that of a Clastoptera 

 up to the largest AphropJtora, but are always easily recognized 

 by their globose forms and hairy covering. 



SYNOPSIS OF THE SPECIES. 



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

 slightly angularly inflated, nearly twi«e longer than their com- 

 bined width (folded), grayish, testaceous, wiuh a distinct V on 

 each elytron. Jf-angularis 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 n. sp. 



^ LEPYRONIA QUADRANGULARIS Say. 



^Cercopis quadrangularis Say. Jour. Acad. Nat. Sci. Phil., VI, p. 305, 



1825. 



Grayish or tawny-brown, with a fuscous spot at the base, 

 another at the apex, and a V on the center of each elytron; 

 margins of vertex convex; elytra only slightly inflated; 

 length 9 7-8. 5mm., <? 6.5-8mm., width 3mm. 



Vertex, flat or depressed, length and width about equal, slightly longer 

 than the pronotum, margins rounding to the blunfc apex; tylus large, 

 parallel margined, nearly one-half the length of the vertex; pronotum flat, 

 twice wider than long, slightly rounding in front, with a transverse row of 

 impressions behind the margin, lateral margins nearly parallel, longer 

 than the short diameter of the eye; elytra about twice longer than wide, 

 outer margin rounding, the apex angulate. 



Color: Vertex and pronotum uniform testaceous, brown; elytra grayish 

 or tawny-brown, a patch at the base, another at the apex, an oblique band 

 from the tip of the scutellum to a point beyond the middle of the costa, 

 another from the point of the clavus, meeting this on the costa and form- 

 ing a V on each elytron, brownish fuscous. 



Genitalia: Ultimate ventral segment in the female consisting of a nar- 

 row plate in each corner, pygofers and ovipositor short, elevated so that 



