Dec, 1914 Bulletin of the Brooklyn Entomological Society 105 



tion Am. Museum Nat. History). The male has the short teg- 

 mina and rather long hind femora, characters of monticola^ as 

 mentioned in the accompanying table for the separation of the 

 species. 



Black Mountains, N. C, September, 1905, male. Charles 

 Schaefifer, collector (collection of the Brooklyn Museum of Arts 

 and Sciences). 



Balsam, N. C, Jones' Peak, August 19, 1903, one male and one 

 female. Prof. Albert P. Morse, collector (Morse collection). 



Linville, N. C, July 18, 1903, male (Morse collection). 



Balsam Mountains, N. C, Jones' Knob, 6,000 ft., October 7, 

 1905, male. Morgan Hebard, collector (Hebard collection). 



Rabun County, Ga., Pinnacle Peak, August 20, 1913, male. 

 Dr. J. Chester Bradley, collector (Georgia State collection). 



Clayton, Rabun County, Ga., 2,000-3.000 ft., June, 1909, two 

 male nymphs, one female nymph. Wni. T. Davis, collector 

 (Davis collection). 



An examination of the cerci of the males of this series shows 

 some variation. They are slightly stouter in some individuals 

 than in others and the apical portion beyond the inner tooth is oc- 

 casionally more drawn out. However, they have been considered 

 as of the same species for the reason that the cerci of two un- 

 doubted males of Atlanticus pachymerus collected by the author 

 while they were singing together in the same clump of bushes on 

 the evening of July 26, 1914, at Deep Pond, Wading River, Long 

 Island, N. Y., show variation along identical lines. 



The three species of Atlanticus so far described from the north- 

 eastern United States* and the mountains to the south may be 

 separated as follows : 



Posterior femora less than twice as long as the pronotum. 



Tegmina in the male covering about one half of the abdomen. Ovi- 

 positor of the female viewed in profile straight to the tip on the 

 lower edge, but cut obliquely downward to the tip on the upper edge. 

 Notch V-shaped in the subgenital plate of the female. Length of 

 male about 20 mm. ; female, including ovipositor, about 38 mm. 



pachymerus Burm. 

 Posterior femora more than twice as long as the pronotum. 



* Another species of the region is to be described by Rehn and Hebard. 



