1918.] NATURAL SCIENCES OF PHILADELPHIA. 169 



Certain of the genera of the present subfamily do not appear at 

 all natural or, if so, are not properly defined. 



The species is known from as far south as Bahia and inland to 

 the upper Amazonian region. 



Acridinae {Truxalinoe of authors). 



Orphulella punctata (DeGeer). 



177.3. Acrydium punclatum DeGeer, Mem. Hist. Ins., Ill, p. 503, pi. 42, 

 fig. 12. [Surinam.] 



Igarape-assii. Two males, one female. 



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

 Three males, seven females. 



This series exhibits the usual phases and variations of this plastic 

 and widespread species. But two, these females from Para, are 

 of the all green phase, while the strongly infuscated phase is 

 represented in the Igarape-assii and Para lots. In a relatively 

 large numl^er of specimens the lateral carinse of the pronotal disk 

 show a more or less decided tendency to become obsolete between 

 the first and second transverse sulci. 



Orphulella boucardi (Bmner). 



1904. Linoceratium boucardi Bruner, Biol. Cent.-Amer., Orth., II, p. 84. 

 [Rio Sarstoon, British Honduras; Panama; San Diego, Department of 

 Magdalena, Colombia.] 



Igarape-assii. February 1, 1912 (one specimen only). Six 

 males, two females. 



For comments on the synonymy of this species the student is 

 referred to a recent paper by the author.^^ 



Omtnexechinse . 



Ommexecha giglio-tosi Bolivar. 



1899. 0[mmexechn\ giglio-tosi Bolivar, Revista Chilena Hist. Nat., Ill, 

 pp. 54, 55. [Caiza, Aguairenda and San Francisco, BoHvian Chaco.] 



Igarape-assii. One male. 



This specimen is inseparable from individuals of the same sex 

 previously recorded by us from northern Argentina, except that 

 the disk of the wing is more glaucous and less azure blue. 



Py rgoraorphinae . 

 Omura congrua Walker. 



1870. Omura congrua Walker, Catal. Derm. Salt. Brit. Mus., Ill, p. 504. 

 [Pard, Brazil; Amazon Region; Archidona, Ecuador.] 



Igarape-assii. One male. 



"Trans. Amer. Entom. Soc, XLII, p. 277, (1916). 



