50 NEW NORTH AMERICAN MELANOPLI (oRTHOPTERa) 



assigned to the present geographic race arc distinguishal)lc l)y 

 their more robust form, with i)ronotum presenting a shghtly 

 more swollen appearance and less definition between the disk 

 and lateral loljes, much broader tegmina, which are attingent, 

 and caudal tibial coloration, these members being bright red 

 distad. 



Males of the present race are similar to the females except 

 as described below, the deeply forked ccrci being distinctive. 

 In general form they are more nearly comparal)le to males of 

 PhauJotettix compressus (Scudder), than to those of the species 

 of other North American genera of the Melanopli. From the latter 

 they differ in the more flattened frontal costa, more inflated 

 pronotum, with transverse sulci more decided and caudal margin 

 feebly but distinctly convex, much broader and nearly attingent 

 tegmina, small blunted and well separated furcida, much broader 

 supra-anal plate, furcate cerci, prominent pallium, shallower 

 and dift'erently shaped subgenital i^late and distinctive color- 

 ation. 



Type.— d'; Uvalde, Uvalde County, Texas. Elevation, 1000 

 to 1100 feet. August 21, 1912. (Rehn and Hebard.) [Hebard 

 Collection, Type no. 749.] 



Size medium large; form robust, when compared with species of nearest 

 afhnity. Head large, eyes large and jirominent, the greatest width across 

 the eyes approximating the greatest ])ronotal breadth. Vertex much as in 

 Phaulotettix, slightly produced and bluntly rounded, its dorsal surface moder- 

 ately concave particularly between the eyes, where delicate convex lateral 

 carinae are distinct and approximate. Frontal costa broad and flat, showing 

 weak depression about the median ocellus, below that point gradually dis- 

 appearing into the face. 



Pronotum with dorsal and lateral ))ortions of prozona smooth, l)ut with a 

 few impressed punctae laterad and somewhat inflated between the decided 

 transverse sulci, which sever the medio-longitudinal carina, this carina distinct 

 except between the transverse sulci, when> it is very weak.- Pronotal lateral 

 carinae, which are subobsolete through the lateral margins of (he disk, are 

 apparent on the prozona, due to the color pattern; metazona impresso-punc- 

 tulate, the caudal margin of the disk weakly but distinctly convc^x. l^-gmin-i 

 very Ijroad oval, extending slightly beyond caudal margin of iiictaiiotuin, 

 separated by a very slight interval. Minute, very elongate oval, vestigial 

 wings ])resent, concealed by the tegmina. Large, ojuni tymv)ana covered by 

 the tegmina. 



''Apparently variable in (his portion, as it is subobsolete to distinct in (lie 

 large scries before us of i\w Trans-Pecos Texan race (A. m. crypsidomus) of 

 the species. 



