JAMES A. G. REHN 
347 
nearer nigromarginata in the sum total of characters. The wing 
of the male has the anterior field hyaline as in Fenestra, instead 
of semi-opaque as in Peruvia, the posterior field similar in opacity 
to the radiate field, as in Peruvia, instead of hyaline like the 
anterior field as in Fenestra, while the black margin of the radiate 
field, the opaqueness of the same and the general venation are of 
the Peruvia type. The head is nearer nigromarginata in form, 
but the antennae are nearer Fenestra in type except for the clavate 
extremity. The pronotum is PeruviaA\ka in general form but 
shortened, with the lateral carinae more irregular and the surface 
texture very rough. The tegmina are nearer nigromarginata in 
form and vein disposition. The caudal limbs are more like those 
of Peruvia. 
The female is quite different from the male, being heavily 
built with abbreviate tegmina and wings, the former not exceed- 
ing the base of the supra-anal plate and the wings being slightly 
shorter than the tegmina. The venation of the female is reduced, 
but the general plan is that of the male tegmina and wings, the 
anterior field of the wings, however, being blackish and subopaque. 
The antennae are strongly depressed, sub-ensiform, with no distal 
clavation. The measurements of the female are: length of body, 
29 mm.; length of pronotum, 6.7; greatest width of pronotal disk 
(caudad), 3.9; length of tegmen, 14.2; greatest width of tegmen, 
4.5; length of caudal femur, 17.7. 
The species is apparently restricted to the southeastern coast 
region of Brazil, wdiere it replaces the interior and Amazonian 
P. nigromarginata. Bruner’s record of the latter species (as 
Toxopterus miniatus) from Rio de Janeiro, was in all probability 
based on the single male which he later described as T. orientalis. 
Locustinae 
Diedronotus discoideus (Serville) 
1831. Tropinotus discoideus Serville, Ann. Sci. Nat., xxii, p. 273. [Brazil.] 
Tijuca. A]u-il 9 to 11, 1913. (Malcolm Burr.) Three fe- 
males, two immature females. 
This is the most easterly definite record of the species, aside 
from one of Bahia material given b}^ Pictet and Saussure. We 
feel rather dulnous about this latter record really referring to 
TR.\NS. AM. ENT. SOC., XLIII. 
