1918.] NATURAL SCIENCES OF PHILADELPHIA, 167 



this is the first record of the genus fjom Brazil or from south of the 



Guianas. 



Miopteryginse. 



Musonia-' major Saussure and Zehntner. 



1894. Musonia major Saussure and Zehntner, Biol. Cent.-Amer., Ortli., I, 

 p. 165, pi. X, figs. 17 to 19. [South America.] 



Igarape-assu. Two males. 



These specimens have also been compared with a male of 

 this species from Nouveau Chantier, French Guiana, recorded by 

 Chopard.-- The form of the supra-anal plate of the male has never 

 been described. From our material it is seen to be elongate 

 lanceolate, with the apex rounded and but faintly surpassing the 

 distal margin of the subgenital plate. There is present on the plate 

 a distinct precurrent median carina. 



This is the first record of the species from Brazil. 



Vatinae. 



Parastagmatoptera flavoguttata (Serville). 



1839. Mantit; flavoguttata Serville, Hist. Nat. Ins., Orthopt., p. 183. [Cay- 

 enne.] 



Igarape-assu. One male. 



This specimen is inseparable from males from Nouveau Chantier, 

 French Guiana, determined and recorded by Chopard. 



ACRIDID^. 



Acrydiinse. 



Eomorphopus granulatus Hancock. 



1906. E[omorphopus] granulatus Hancock, Genera Insectorum, fasc. 48, 

 Tetriginse, p. 38, pi. IV, figs. 35 and 35a. [Dutch Guiana.] 



Igarape-assu. January 25, 1912. One male. 



Allotettix peruvianus (Bolivar). 



1887. P[aratetUx] peruvianus Bolivar, Ann. Soc. Entom. Belg., XXXI, 

 p. 272. [Pumamarca, Peru.] 



Igarape-assu. Four males, one female. 



-^ The type of this genus was first fixed by the present author, in February, 1904 

 (Proc. U. S. Nat. Mus., XXVII, p. 568), as surinama. Kirby later (Synon, Catal. 

 Orth., I, p. 276 — not earlier than November, 1904) indicated major Saussure and 

 Zehntner as the type, an unwarranted and untenable designation, as it was not one 

 of the originally included species. As Giglio-Tos has based his recently proposed 

 generic name Promusonia on surinama (Bull. Soc. Entom. Ital., XL VII, p. 6, 

 (1916)), it is evident that his name is a pure synonym of Musonia as properly re- 

 stricted. As we have already contended (Ibid., p. 567), the generic name Mionyx 

 also becomes a synonym of Musonia, although at the date of our previous writing 

 no single type had been selected for it. Kirby, however, indicated (Ibid., p. 276) 

 as its type, lineativentris St&l, which is apparently congeneric with surinama, in 

 addition being with the latter the original basis of Musonia. Certain species 

 which have been referred to Mionyx are, apparently, not congeneric with suri- 

 nama, and these will require a new generic name. 



22 Ann. Soc. Entom. France, LXXX, p. 332, (1911). 



