IOWA ACADEMY OF SCIENCES. 69 



gestioD " which Berg could hardly refuse to accept as final 

 after submitting his type for inspection. As to mexicana, it wsls 

 founded on a single specimen from Mexico with a slightly more 

 angular vertex than the typical form, a not infrequent varia- 

 tion. I have specimens from the West Indes, Mexico and the 

 United States, collected along with the typical forms, which 

 present all possiole gradations in that line and preclude the 

 possibility of being able to define a " species " on that ground. 



DICYPHONIA N. G. 



General form of Hecalus, head shorter and more angulate. Ver- 

 tex narrower than in Parabolocratus, shorter than width across eyes, 

 longer than pronotum, regularly narrowing to the obtusely round- 

 ing vertex, where it is about two-thirds the width between the eyes 

 in the female, or narrowing almost to a point in the male, disc-con- 

 cave, margins sharp, slightly foliaceous; ocelli on the margin close 

 to the eyes. Front longer than its greatest width; wedge-shaped, 

 narrowing below, lateral sutures extending to the margin of the 

 vertex at some distance in front of the ocelli. Pronotum broadly 

 rounding in front, emarginate behind, as wide as the eyes, the lat- 

 eral margins half of the middle length. Elytra, macropterous, 

 covering the abdomen, with well developed apical cells and appen- 

 dix, or brachypterous (female) covering little more than half the 

 abdomen, the apical cells minute; venation irregular on the corium, 

 the first sector once forked, the inner branch with one cross nerv- 

 ure to the second sector, obscured by racemose brown lines, except 

 in the apical cells. Ovipositor, in the female, as long or longer 

 than the rest of the abdomen. 



Type of the genus D. ramentosa. 



Dicyphonia pamentosa N. SP. Plate v Figs. 1-5. 



Macropterous female; slightly smaller than Parabolocratus viridis, 

 with longer, narrower vertex and more flaring elytra, anterior 

 margin of vertex elevated, the disc concave, half longer than 

 width between eyes, pronotum two and one-half times wider than 

 long, transversely convex, elytra covering the abdomen; color, pale, 

 creamy yellow with irregular brownish fuscous markings; elytra, 

 ivory white, heavily, irregular irrorate with brownish fuscous 

 except in the apical cells and a creamy stripe along the costa; 

 below, creamy or greenish yellow with five or six fuscous arcs on 

 the upper half of the front. 



Brachypterous female; as above except that the elytra cover 

 only half the abdomen, the apical cells minute or wanting, and 

 the wings abortive, the exposed part of the abdomen striped with 

 brownish, the ovipositor reddish. 



Male; vertex little longer than width between eyes, obtusely 

 pointed, the disc nearly flat, elytra covering the abdomen, strongly 

 flaring at apex. Color, black, with more or less light maculations 

 corresponding to the light markings of the female, some irregular 



