1918.] NATURAL SCIENCES OF PHILADELPHIA. 183 



with fuscous, this more apparent along the costal margin and 

 broaclly around the peripherj^, veins fuscous. Abdomen dresden 

 brown (cf ) to brownish olive (9), the ventral surface faintly more 

 greenish; distal section of the margin of the male supra-anal plate, 

 raised points on the same and distal extremity of the cerci black. 

 Cephalic and median limbs of the general coloration: caudal femora 

 hellebore green ( 9 ) or light hellebore green (cf ), the distal extremity 

 english red (cT) to mahogany red (9), the genicular arches weakly 

 greenish, in the female this weakly suffusing the lobes as well: 

 caudal tibiae and tarsi nopal red, spines black tipped. 



Measurements (in millimeters) . 



cf 9 



(Type) (Allotype) 



Length of body 17.6 25.8 



Length of pronotum 3.4 5 



Greatest dorsal width of pronotal disk 2.8 4.4 



Length of tegmen 11 14.8 



Length of caudal femur 10.5 14 



The type and allotype are the only specimens of this species we 

 have seen. 



Vilerna seneo-oculata (DeGeer). 



1773. Acrydium ceneo-oculatum DeGeer, Mem. Hist. Ins., Ill, p. 502, pi. 42, 

 fig. 11. [Surinam.] 



Igarape-assu. One male. 



This specimen is somewhat smaller than British Guiana individuals 

 of the same sex, but is clearly the same species. This Guianan type 

 is known to range south as far as Chapada, Matto Grosso and Rio 

 de Janeiro, Brazil. 



Abracris dilecta Walker. 



1870. Ahracris dilecta Walker, Catal. Dermapt. Salt. Brit. Mus., IV, p. 642. 

 [Santarem, Brazil.] 



Igarape-assu. January 17, 1912 (one). Two females. 



These specimens are inseparable from a cotypic female of the 

 synonymous meridionalis^^ from Demerara, kindly loaned by Prof. 

 Bruner. 



Abracris caeruleipennis (Bruner). 



1900. Jodacris ("') ccerideipennis Bruner, Second Rep. Merchants Loc. In- 

 vest. Comm. Buenos Aires, p. 68. [Asuncion, Paraguay; Territory of 

 Formosa, Argentina.] 



Para. (C. F. Baker.) One male, one female. 



31 See Rehn, Trans. Amer. Entom. Soc, XLII, p. 294, (1916). 



