1932 ] Notes on the Genus Dysdercus 115 
nearly twice as far as the proximal one, narrow, cylindrical, 
acute, perpendicular to the axis of the paramere ; the proxi- 
mal one in the same plane, broad at the base, the apex 
forming a backwardly directed hook ; the shaft of the para- 
mere with a lateral flange arising from the outer ventral 
surface ; the distance between the tips of the spurs roughly 
twice as great as that between the tip of the proximal spur 
and the apex of the lateral flange. 
Length, from the apex of the clypeus to the tip of the 
membrane of the hemelytra : 2 2 12.5-15.0 mm. $ $ 11.5- 
12.5 mm. 
Maximum breadth of the pronotum: $ 2 3. 4-3. 8 mm. 
$ $ 3. 0-3. 4 mm. 
These measurements were made on only seven speci- 
mens; from measurements made in Trinidad on a longer 
series it appears that the limits of size are greater than 
those indicated above. 
Localities : Trinidad, B. W. I. 1 
British Guiana (Georgetown). 
Brazil (Bonito, Prov. Pernambuco; Natal). 
The color is subject to some variation. In some speci- 
mens from Trinidad the head, disc of the pronotum, scutel- 
lum and hemelytra, except the extreme costal margin, are 
more or less infuscate, the antennae, rostrum and legs being 
castaneous, verging at their apices to black. Occasionally 
a faint fuscous spot is developed towards the inner angle 
of the corium and the infuscation on the head and prono- 
tum may take the form of irregular patches. Specimens 
from British Guiana follow the same course of variation. 
Those from Brazil are somewhat smaller than the above, 
more deeply infuscate and sometimes have the head com- 
pletely black. The shape of the parameres, however, is a 
sure guide to the identity of the specimen. 
Specimens of D. discolor Walker from the Lesser An- 
tilles have parameres which differ only very slightly from 
those of D. hoivardi and whilst in general the coloration of 
this species is distinct, it is of interest to find that speci- 
mens, particularly from those islands closest to Trinidad, 
(Grenada, Bequia, St. Vincent and St. Lucia), occasionally 
are found in which the usual sanguineous suffusion is lack- 
