SCUDDER. — THE GENUS DEROTMEMA. 389 



b 2 . Disk of pronotum fcuberculate, its hind margin rectangulate, rarely feebly 

 obtusangulate ; tegmina with almost uniformly distributed markings, consisting 

 largely of longitudinal streaks or fleekings following the longitudinal veins, rarely 

 so arranged as to form massive blotches and then inconspicuous and simulating 

 Trimerotropis rather than Conozoa. 

 c 1 . Hind wings broad in the radiate area, after the manner of Circotettix, so 

 that they are more than three fifths as broad as long; tegmina flecked through- 

 out rather than streaked 7. lentig'tnosum. 



c-. Hind wings of normal form, rarely more than four sevenths as broad as 

 long; tegmina beyond the basal fourth marked almost exclusively with 

 longitudinal streaks 8. lichenosum. 



(Subgenus Derotmema.) 

 1. Derotmema laticinctum, sp. nov. 



Of relatively small size, fusco-cinereous, flecked with fuscous. Head 

 with prominent subglobose eves, the occiput ascending, more or less 

 clearly separated from the descending fastigium of the vertex by a 

 transverse ridge; fastigium rather broad and depressed between high 

 lateral walls, traversed by a slight median carina, the lateral walls con- 

 verging anteriorly and continuous with the lateral margins of the frontal 

 costa, which is narrow and deeply sulcate above, but broadened at 

 ocellus and particularly at base ; lateral carina' (if face strongly divergent 

 below; antenna) somewhat longer (£) or somewhat shorter (9) than 

 the hind femora, the joints, or most of them, alternately pallid and 

 fuscous. Pronotum cinereous, more or less flecked with fuscous, mesially 

 constricted so as to be subselliform, the metazona broad, generally 

 broader than at the eyes, its posterior margin very broadly rounded, with 

 no or scarcely a trace of angulation mesially : disk of metazona generally 

 smooth or nearly so, but sometimes, at least in the female, distinctly 

 ru<nilose, the lateral carina' distinct, but fading on the prozona. Tegmina 

 long, slender and tapering, strongly rounded apically, cinereous, heavily 

 flecked with fuscous along front and bind margins, and with some slender 

 streaks apically along the longitudinal veins, the intercalary vein subequi- 

 distant from median and ulnar veins ; wings citron yellow at base, 

 hyaline apically with some fuscous clouds or maculations at extreme 

 apex, and with a broad extraraesial fuscous band, normally broader than 

 the metazona, percurrent or broken only in the posterior axillary area, 

 reaching and including the hind border but not attaining the anal angle, 

 and leaving free three lobes of the radiate area apically, in the axillary 

 area sending a shoot half way to the base. Hind femora cinereous, 

 blotched or fasciate with fuscous. 



