26 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.49. 



sternal interspace subquadrate in the female, in the male longer than 

 broad. Elytra extending to or beyond the tips of the hind femora; 

 scapular area in neither sex much expanded, the intercalary vein 

 distinct and bordered on each side with a single row of quadrate 

 cells; the discoidal area is not always closed apically but sometimes 

 continues open to the end of the elytra, or but partly closed. Wings 

 almost entirely hyaline, the tip with a few veins more or less infus- 

 cated and the disk with the merest trace of a bluish tinge in some 

 lights. Legs moderately slender, the posterior femora at the widest 

 part scarcely as broad as the head across the eyes; posterior tibiae 

 yellowish with eight spines on the outer margin above, the spines 

 themselves yellow with the apical half black. Ccrci simple in both 

 sexes, shorter in the female than in the male; supraanal plate of 

 male scarcely sulcate mesially, the fercula short, quadrate and far 

 separated; subgenital plate of the male apically pointed; valves of 

 the ovipositor short, the upper pair deeply excavate dorsally. 

 Type. — Heliastus minimus Scudder. 



CONIANA, ne^w genus. 



In general appearance very similar to the foregoing but readily 

 separable from it by having the metasternal interspace broadly 

 transverse, at least in the female, and by having the apical calcars 

 of the posterior tibiae longer, the outer pair being about twice as 

 long as the terminal dorsal spine. 



Type. — Coniana snowi, new species. 



The relationship of this and the preceding genus with their allies 

 is shown by the key given on a following page. 



CONIANA SNOWI, new species. 



One female, Bill Williams Fork, Arizona. F. A. Snow collector. 



A small whitish species superficially resembling very closely the 

 Xeracris minimxi of Scudder, but readily separated from that 

 species by the metasternal interspace, which is fully twice a-s broad 

 as long in this species, while in minima it is scarcely longer than broad. 

 The mesosternal interspace is also decidedly broader than in minima, 

 being here broader than either of the lobes themselves, the reverse 

 being true of minima. A color character also distinguishes these two 

 species, minimxi having the disk of the pronotum posteriorly marked 

 more or less with fuscous and the upper part of the front portion of 

 the lateral lobes blackish, while in the species here characterized these 

 portions are nearly uniformly and very slightly maculate ; the surface 

 of the pronotum of this species is jilso much more roughened and 

 pitted than in minima. To the various members of the genus Anconia 

 this species is very readily separated by its smaller size and also by 

 the less prominent eyes and the color of the elytra, which is here 



