Bruner: South American Crickets. 371 



(II. H. Smith); and lastly Moro do Para, Rio S. Francisco, Bahia, 

 Brazil, Dec. 6, 1907 (Haseman). 



As is the case with some of the other Xemobii this species also 

 varies somewhat in both color and size. 



28. Nemobius brasiliensis (Walker). 



Argizala brasiliensis Walker, Cat. Derm. Salt. B. M., I (1869), p. 61. 



Nemobius brasiliensis S.\ussure, Mem. Soc. Geneve. XXV (1877), p. 87; Kirby, 



Syn. Cat. Orth., II (1906), p. 19. 

 Nemobius (Arigizala) brasiliensis Heb.\rd, Proc. Acad. Nat. Sci. Philad., 1913, 



pp. 403, 446-449, figs. 17, 18. 



Habitat. — Specimens of this magnificent species are at hand from 

 Rio Paraguay and Concepcion, Paraguay, Santa Cruz de la Sierra, 

 Province del Sara, and Puerto Suarez, Bolivia. Most of these were 

 taken by J. Steinbach. They vary somewhat in color and also in 

 size, but all readily run to this species as given in the synoptic key by 

 Hebard, /. f., p. 403. 



There is a single additional male at hand from Corumba, Brazil, 

 which I believe also belongs with this species, although it is rather 

 more robust and lacks the hind wings. In size and a few of its other 

 general characteristics it does not diiTer greatly, but in color it is of 

 a darker hue, and it also lacks much of the coating of strong bristles 

 on the head and pronotum, so characteristic of brasiliensis, though 

 these might have been rubbed ofY, thus giving to it a smoother appear- 

 ance. At first I was inclined to refer it to N. major of Saussure, but, 

 since this last named insect is said to resemble the N. fasciatus De- 

 Geer, I have decided that it can hardly be Saussure's species. Pre- 

 sumably when a sufficient series of specimens of Nemobius are at hand 

 from the various South American countries the relationships of these 

 varied forms can better be determined. 



29. Nemobius argentinus sp. nov. 



Very closely related to N. brasiliensis Walker, with which it agrees 

 in most of its characteristics both as to color and large size. The 

 main difference, however, is in its much shorter and more robust 

 ovipositor. Length of body, cf, 10 mm., 9, 12 mm.; of pronotum, 

 cf , 1.6 mm., 9 , 1.9 mm.; of tegmina, cf , 6 mm., 9 , 7 mm.; of wings, 

 cT, 14 mm., 9 , 16 mm.; of hind femora, cf and 9 , 7 mm.; of ovi- 

 positor, 4.35 mm. 



