RATHINA.—POCADIUS. 351 
8. Aithina quadrata, sp. n. (Tab. XI. fig. 7, 3.) 
Latior, oblongo-ovalis, nigra, fortiter punctata, pube brevi concolore minus dense vestita; antennis medio rufo. 
Long. 6 millim. 
Hab. Guatemaua, Las Mercedes, Zapote (Champion); Panama, Bugaba (Champion). 
Broader and shorter, but less convex than . villosa, more sparingly punctate, and 
with less conspicuous pubescence ; the apices of the elytra subtruncate, each being less 
rounded at the sutural angle. Thorax strongly transverse, the sides rounded and 
narrowed in front, nearly straight behind, the base much sinuate on each side. Sutural 
stria of the elytra scarcely perceptible. Pygidium closely and deeply punctate. Legs 
short, piceous, the tarsi red. 
We have received only four specimens of this insect—two are immature, and are of 
a dark red colour. We figure the one found at Bugaba, it is a male. 4. quadrata 
bears a considerable resemblance to a large black Carpophilus, such as C. rufitarsis. 
POCADIUS. 
Pocadius, Erichson, in Germar’s Zeitschr. iv. p. 318 (1843). 
This genus includes about eight species, which are distributed in Europe, Japan, 
North and South America, and Cuba. The European species, though very similar 10 
those from North America in appearance, presents a well-marked distinction in the 
structure of the breast. 
1. Pocadius helvolus. (Tab. XI. fig. 8.) 
Pocadius helvolus, Kr. in Germ. Zeitschr. iv. p. 320'; Horn, Trans. Am. Ent. Soe. vii. p. 310’. 
Hab. Nortu America! ?,—Mexico, Durango city (Flohr), Guanajuato (Sallé). 
The specimens from our region agree with one from Montana in my own collection. 
2. Pocadius ——? 
Hab. Mexico, Cordova (Sallé). 
A single individual, in bad preservation, almost certainly belonging to an undescribed 
species. 
3. Pocadius fulvipennis. 
Pocadius fulvipennis, Er. in Germ. Zeitschr. iv. p. 319°. 
Hab. Mexico (Ehrenberg 1). 
We have not received anything agreeing with this description. 
