JAMES A. G. REHX 281 



fifteen years priority and the generic name antedates Toxopterus 

 by at least two months. Scudder, when erecting the genus, 

 erroneously associated it with Acrolophitus, a proceeding he later''^ 

 concluded was unwarranted, there quite correctly placing Peruvia 

 near Toxopterus, from which he separated it by several characters. 

 The latter for Toxoptems, however, were apparently gleaned from 

 Bolivar's description and not from material, as the type of ni- 

 gromarginata is identical with the rather extensive available series 

 from over the extended range of the species. The type has been 

 dried from alcohol, has in consequence the orange red wing disk 

 turned to yellow and is now lacking the antennae and all the 

 limbs. 



The Porto Velho specimen is larger than individuals of the same 

 sex from south-central Brazil (Chapada), Paraguay and northern 

 Argentina (Misiones). Additional material and further study 

 will probably make necessary racial separation of the southern 

 form. 



Scyllina pratensis (Bruner) 



1904. [Pledrotettix] pratensis Bruner, Biol. Cent.-Amer., Orth., ii, p. 100. 

 [Pernambuco, Brazil.] 



Ceara-Mirim, Rio Grande do Norte. (W. M. Mann.) One 

 male. 

 This species is only known from the two localities. 



OEDIPODIXAE 



Paulinia acuminata (DeGeer) 



1773. Acnjdium acuminatum DeGeer, Mem. Hist. Ins., iii, p. .501, pi. 42, 

 fig. 10. [Surinam.] 



Independencia, Parahyba. (Mann and Heath.) One male. 

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

 Manaos, Amazonas. (Mann and Baker.) Six males, six- 

 teen females. 

 The Manaos series shows an appreciable amount of variation 

 in the fastigial width in both sexes, more pronounced, however, 

 in the female. The chromatomorphs are very strikingly dif- 

 ferent and appear to us to be genetic combinations, probably 

 much like those illustrated by Nabours in his paper on heredity 

 in Paratettix. The male sex shows much greater uniformity in 

 coloration than the female, but this may be due to the smaller 

 " Proc. Boston Soc. Nat. Hist., xxvii, p. 207, (1896). 



TRANS. AM. ENT. SOC, XLII. 



