260 
NATTJBAL HISTOBY OP 
CASSIDA LUCTUOSA. 
PLATE XXVIII. Fig. 6. 
Olivier , vi. No. 97, pi. 4, fig. 54. 
Head and thorax black, the latter short, and ter- 
minating in an acute point at each of the hinder 
angles. The elytra are likewise black, with all the 
outer edge, a small portion of the suture, and a 
short line near the middle of each, reddish ; the un- 
der side and legs are also of that colour. It is found 
at Surinam. 
CASSIDA SIX-PUSTULATA. 
PLATE XXIX. Fig. 1. 
Fabr. Sytt. Entom. — Olivier, 97, pL 3, fig. 36. 
This well-known species is bluish green above, 
and shining black beneath. The elytra are gibbous 
on the back, the surface thickly punctured, and each 
of the wing-cases marked with three spots of red. 
It is found in Brazil, where it is rather common. 
ALURNUS MARGINATUS. 
PLATE XXX. Fig. 1. 
The Alurni have antennae of equal thickness 
