76 DAVENPORT ACADEMY OF NATURAL SCIENCES. 



the lateral margins short and oblique. Elytra short, slightly cori- 

 aceous, equalling the abdomen in length, flaring, appendix wanting, 

 never overlapping at rest, usually parted by the elevated tip of the 

 abdomen. Venation similar to reflexus on the corium, the two outer 

 veinlets strongly reflexed to the costa, the third at nearly right angles 

 and with the base of the apical cells forming a Ime across to the apex 

 of clavus, outer anteapical cell small, pointed behind, sometimes want- 

 ing, the second cross nervure frequently wanting, veins on clavus 

 nearly parallel, without cross nervures. 



Color : Above, creamy-yellow tinged with olive. Vertex with the 

 median black line extending nearly to the tip, a spot on either side of 

 the white tip and a faint narrow line on the margin between these and 

 the red ocelli, black, eyes reddish-brown. The three reflexed vein- 

 lets broadly white, margined in Iront with black which also extends 

 along the co^5ta the same distance before them, third apical with its 

 outer margin broadly black. Below, face black, sometimes with a light 

 spot on the apex of front sending off a narrow line curving around 

 the lorse to the angles of the genae ; legs, femora black except ti[), 

 tibi« and tarsi yellow, spotted or annulated with black, tergum and 

 venter more or less infuscated. 



Genitalia: ?, ultimate ventral segment half longer than penulti- 

 mate, two and (jne-half times wider than long, narrowing posteriorly 

 to the slightly acute lateral angles, posterior margin, emarginate next 

 the angles, broadly produced in the middle with an acute notch and a 

 black spot either side, pygofers broad at base, constricted before the 

 ti|), their sides armed with stout s[)ines. S', valve triangular, over 

 twice longer than ultimate segment, nearly as long as broad, con- 

 stricted near the base and again just before the produced apex, 

 black, narrowly margined with light, plates narrower at base 

 than valve, elongate, twice the length of valve gradually nar- 

 rowing to the divergent rounding tips which are nearly half the basal 

 width, pygofers inflated at base, flatly compressed at the apex and ex- 

 tending considerably be>ond the plates. 



Described from thirty-two examples collected at Ames, Iowa. 



Larvae, very similar to those of reflexus, lighter and less distinctly 

 marked, light-brown with three stripes and the margins white, upper 

 half of face dark, vertex twice longer in the middle than next the eye, 

 acutely angled, disc flattened, body long, tapering to an acute point. 



Color: A median stripe from the tip of the vertex to the tip of the 

 abdomen, widening behind, a stripe on either side margining the eyes 



