150 
BEAZILIAN ORTHOPTERA 
Aphonomorphus peruvianus (Saussure) 
1874. Aphonus peruvianus Saussure, Miss. Scient. Me.xiq., Rech. Zool., vi, 
pp. 510, 511. [Tarma, Peru.] 
Madeira-jMamore Railroad Company Camp 41, Rio Madeira. 
(Mann and Baker.) One male. 
The present specimen agrees quite well with the original 
description, except that the median ocellus is ovate instead of 
round, more ovate than the lateral ones, and for the presence of a 
very weak, medio-longitudinal impression distad on the sub- 
genital plate of the male, which plate is described as “non can- 
nelee.” Until we are able to compare the Rio Madeira specimen 
with material more fully typical of 'peruvianus, we prefer to use 
that name, tentatively, for the present individual. 
Tafalisca bahiensis (Saussure) 
1878. M[etrypus] bahiensis Saus.sure, Melang. Orthopt,, ii, fasc. vi, pp. 812, 
816. [Bahia, Brazil.] 
Independencia, Parahyba. (Mann and Heath.) One female. 
Para, Para. (C. F. Baker.) One female. 
These specimens are referred to bahiensis with some uncer- 
tainty, as they show certain differences from the original de- 
scription which may be of specific worth, or may, as seems to 
us more probable, be features of individual variation. The latter 
opinion is strengthened by the differences between the two speci- 
mens in hand, which, while certainly representing the same 
species, vary in size, intensity and continuity of the dark head 
marking and spination of the dorsal surface of the caudal meta- 
tarsi. From Saussure’s description of bahiensis the present 
material differs in the slightly smaller pronotum, in the caudal 
margin of the disk of the same being but moderately arcuate 
instead of angularly rounded, and in the caudal metatarsi having 
the dorsal surface armed with 2:3 or 3:3, instead of 2:4, spiniform 
denticulations. Each of the present specimens possesses but 
a single caudal limb, and the Para specimen has the 3.3 formula 
on the single metatarsus, the Independencia individual the 2:3 
arrangement. The present specimens have the darker pattern 
of the head strongly infuscate, while the angle of the tegmina has 
the trunk with a greater (Para) or less (Independencia) amount 
of infuscation, as is true of the apex of the caudal femora. It 
seems that, aside from the pronotum, the described reddish 
