1932 ] 
Notes on the Genus Dysdercus 
121 
acute, sharply recurved hook, and with a tooth on the proxi- 
mal edge which is transverse and chisel-like; the shaft of 
the paramere with a dorsal longitudinal ridge and a lateral 
flange arising ventrally on either side, the inner one promi- 
nently projecting; the axis of the proximal spur roughly 
midway between that of the distal spur and the anterior 
margin of the inner lateral flange of the shaft. 
Length, from the apex of the clypeus to the tip of the 
membrane of the hemelytra: 2 $ 10.5-13.0 mm. $ $ 8.0- 
10.5 mm. 
Maximum breadth of the pronotum : $ 2 2. 7-3. 5 mm. 
$ $ 2. 1-2.8 mm. 
Redescribed from material collected in Trinidad, 1930. 
Localities: U. S. A. (Arizona, 4 California, 2 , 4 Texas 2 , 4 ). 
British Guiana (Georgetown). 
Mexico 1 , 4 (Tampico, Vera Cruz). 
Guatemala 3 , 4 (Alta V. Paz, Ayutla, Los 
Amates) . 
Honduras 4 (La Ceiba, Tegucigalpa) . 
Salvador. 
Nicaragua. 3 , 4 
Costa Rica. 3 , 4 
Panama 2 , 3 , 4 (Ancon and Mt. Hope, C. Z.). 
Colombia 4 (Aracataca, Santa Marta). 
Ecuador 4 (Chimbo). 
Bolivia (Prov. Sara) . 
Brazil (Igaripe and Manaos, Amazonas; 
Para) . 
British Guiana (Georgetown). 
Venezuela (Cumaragua). 
Trinidad, B. W. I. 
Cuba (Santiago de las Vegas). 
The variation amongst Trinidad specimens is not strik- 
ing, running usually towards the production of smaller, 
more sordid forms, in which the color of all parts of the 
body is infuscate, this infuscation on the posterior disc of 
the pronotum occasionally taking the form of an irregular 
patch. The specimens examined from Cuba, Colombia, 
Venezuela, British Guiana, Bolivia and Brazil are similar 
