234 PROCEEDINGS OF THE ACADEMY OF [April, 



colored and consequently more contrasted with the almost invariably 

 paler anal area. We have but one specimen of querneus, a male, 

 which shows little or no contrast between the two sections of the 

 tegmina, this being the very dark individual mentioned above. 



In addition to the type and allotype, we have before us a series of 

 ten males and thirteen females, taken at Thomasville on dates 

 extending from November 30 to December 13, 1902-1903, all of 

 which may be considered paratypic. 



Before we were able to examine specimens of undoubted nigrescens 

 we referred to this species by that name, but now with Scudder's 

 species in hand it is quite evident that the two are distinct. 



This species was found frequenting the vicinity of scrub oaks in 

 the pine and oak woods. Extensive notes on the habits of the 

 species have been previously published {vide supra). 



Melanoplus nigrescens (Seudder). 



Lake Waccamaw, North Carolina, IX, St. Simon's Island, Georgia, VIII, 30. 

 8, 1911, (R. & H.), 1 cf. 1911, (R. & H.), 4 & , 11 9 . 



The above records, with those of Seudder from " Georgia ' ' and Smith- 

 yille. North Carolina, form all the information we have on the range of 

 this species, as the record of nigrescens from Thomasville, Georgia, made 

 by the authors 90 we now find to have been based on the allied but 

 distinct new species, M. querneus, which is described above. We 

 find on comparison that nigrescens is closely related to walshii, 

 differing chiefly in details of the dorsum of the pronotum, in the 

 peculiar offset or twist of the distal section of the male cercus and 

 in the more pronounced apex of the subgenital plate of the same 

 sex. The females are almost indistinguishable, the more delicate 

 median carina of the pronotum, the straighter ovipositor jaws 

 (particularly ventral) and the more subequal and less distinctly 

 tapering prosternal spine being about all the really tangible characters 

 in nigrescens to separate that sex from walshii. In coloration the two 

 species are almost identical, each varying to about the same degree 

 individually, although on the whole nigrescens has the dorsal aspect 

 generally paler. There can be no question but that both species are 

 members of the same species group. 



The size shows but little variation in the series and this is slightly 

 more pronounced in the female than in the male sex. 



From the records the species seems to be restricted to the lower 

 portion of the Coastal Plain within theSabalian or Basic Austral Zone. 



90 



Proc. Acad. Nat. Sci. Phila., 1904, p. 791, (1905). 



