264 



•the band ou the wiugs, and iu the structure of the upper surface of the 

 prouotum. 



18. Hippiscus neglectus {(Edipocla neglecta Thorn.). 1 (?, 1 9, Bhick- 

 hawk, (Jolo., July 2; Manitou, Colo., July 14. I place this species tem- 

 porarily iu this group, to which it is somewhat closely allied, but from 

 which it should doubtless be separated. 



19. Hippiscus Haldemanni {OEdipoda Haldemanni Scudtl.), 2 9, G-ar- 

 den of the Gods, Colo., July 13. 



20. HipjJiscus coraUipes {fEdi2)oda corallipes JlaM.). 1 ^,1 9, Boulder, 

 Colo., Jaue 29. 



Mestobregma (,'j.£(T76:, [ifti-pj.a) nov. gen. 



Somewhat allied to Psmu?i« Stal. Head large; face horizontal; ver- 

 tex tumid, but not so elevated as in Psinidia, broad between the eyes, 

 the fastigium quadrate, depressed, with very high and abrupt lateral 

 and frontal cariuse, which form the continuation of the sides of the equal, 

 completely sulcato frontal costa; lateral foveol 03 small, depressed, rudely 

 semicircular, the ocelli situated beneath their outer extremity; eyes 

 small, moderately prominent, but little longer and not so broad as the 

 space between them; antenna (9) about as long as the hind femora. 

 Pronotum posteriorly as broad as the head, somewhat constricted in the 

 middle, the hind lobe scarcely longer than the front, the posterior border 

 rectangular; median carina moderately conspicuous, slightly higher on 

 the front than on the hind lobe, twice deeply cleft, the transverse sul- 

 cations extending into the lateral lobes; lateral carinas of posterior lobe 

 prominent ; surface of hind lobe nearly flat, pretty smooth ; front lobe 

 with a few oblique ruga? and small tubercles. Tegmina and wings sur- 

 passing the abdomen, the axillary vein of the former free ; hind femora 

 as long as the abdomen. 



21. JMestobregma Plattei {(Edipoda PlatieiThom.). 1 9 , Boulder, Colo., 

 June 29. 



ClECOTETTIX {y.i/r/.ii:;, r/rrcl) tlOV. gen. 



Bomewhat closely allied to CtyiMpims Fieb., but diflferiug considera- 

 bly from it in general aspect. Head closely resembling that of Trime- 

 rotropis Stal; eyes rather smaller, somewhat prominent, separated 

 above by a space about equal to their width ; antennte but little longer 

 than the head and prothorax combined. Pronotum with the front lobe 

 slightly narrower than the head, severed behind the middle ; the hind 

 lobe, which is about twice as long as the front lobe, broadening rapidly 

 and greatly, slightly gibbous ; the median carina distinct on the ante- 

 rior portion of the front lobe, obsolete on the posterior portion, and in- 

 conspicuous on the hind lobe ; front margin scarcely angulate ; hind 

 margin rectangulate ; lateral carinse distinct on posterior lobe, but not 

 prominent ; surface slightly rugulose. Tegmina and wings much longer 

 than the body, the former with the intercalary vein approximating the 

 radial at its tip, the axillary vein free; wings peculiar, being falcate 

 (Thomas calls it papilio[ni]form), with more or less undulate margin ; 

 the falcation arises from the prolongation of the pre-anal area and the 

 fullness of the middle of the anal area ; the principal veins of the latter 

 are supported on either side by spurious veins, running very close be- 

 side and parallel to them, to which the transverse veins are attached, 

 while the spurious veins are themselves united to the principal nervures 

 by other cross- veins, forming a more or less regular net- work on either 



