FURTHER RESEARCHES ON NORTH AMERICAN ACRIDIIM. 45 



Hesperotcttix pratensis Scudder. 

 Arkansas: Magazine Mountain. 



Indian Territory: Caddo; South McAlester; Wilburton. 

 Texas: Denison. 



This species was quite common in the grass and shrubby sprouts 

 of the habitat shown in plate 6, fig. 2, at the edge of the summit clifi 

 of Magazine Mountain, and the specimens secured there are of particu- 

 lar interest in presenting a pattern of coloration and a degree of wing- 

 development intermediate between typical pratensis and brempennis . 



Hesperotcttix speciosus Scudder. 

 Indian Territory: Caddo. 



Texas: Clarendon; Myra; Quanah; Wichita Falls. 

 Oklahoma: Cache; Mountain Park. 



Not uncommonly obtained while sweeping, but seldom occurring 

 -n numbers . Decidedly less active than its long- winged relative viridis . 



Hesperotettix viridis Thomas. 

 Texas: Quanah; Wichita Falls. 

 Very common in one station among weeds. 



Aeoloplus regalis Scudder. 

 Texas: Wichita Falls. 



Plentiful on a weedy patch about a stone-heap in cultivated ground 

 in company with large numbers of Melanoplus differentialis , several 

 other species of that genus, Hesperotettix, and two species of Decticinse. 



Podisma australis Morse.* 



Podisma scudderi. Psyche, xm, 120, 1906. 

 Podisma australis. Psyche, xiv, 57, 1907. 



Alabama: Cheaha Mountain. One female. 



"Head large, eyes large and prominent, vertex very blunt, but 

 little protuberant, in form and proportions recalling Dendrotettix. 

 Pronotum robust, depressed rather than compressed, especially at the 

 shoulders; carina distinct on metazone, evanescent on prozone; pos- 

 terior margin slightly convex, subemarginate; sutures deeply impressed. 

 Prosternal spine short, acutely pointed, conical with excavate sides. 

 Tegmina ovate-lanceolate, separated by their own width, anterior 

 margin strongly convex, posterior slightly so, apex evenly rounded. 

 Carina of the abdomen indistinct. Valves of ovipositor stout, outer 

 margins finely dentate and strongly sinuate, contrasting markedly in 



*Owing to the fact that in a single instance, many years ago, Melanoplus 

 scudderi had been referred to the genus Podisma (Walker, Cat. Derm. Salt. 

 Brit. Mus., iv. 718, 1870), strict rules of nomenclature seemed to render a dif- 

 ferent name advisable for this species. 



