28 Mr. J. O. Westwood on the Genus Cryptodus, &c. 
Another species is indicated in Dejean’s Catalogue, also from 
Senegal, whence the impropriety of Dejean’s manuscript specific 
name for the insect above described, which I have accordingly 
dedicated to Latreille. 
Another interesting genus, closely agreeing with the above in 
the structure of the mouth, has been observed by Dr. Burmeister 
in the Collection of Mr. Melly. It is of much larger size, and 
has much of the habit of a broad Oryctes. It is from Brazil, and 
has been named Pantodinus by Dr. Burmeister. 
DESCRIPTION OF PLATE IIL. 
Fig. 1. Cryptodus Tasmannianus, and details. 
la, underside of the head; 1b, head seen sideways; 1c, labrum; 1d, 
mandible; le, maxilla; If, antenna; 1¢, fore tibia and tarsus ¢ ; 
1h, anterior ungues ¢ ; 1%, basal part of posterior tarsi; 1k, anterior 
tarsus 9. The antenna to the right of the insect is that of Crypt. 
paradoxus. 
Fig. 2. Actinobolus radians, and details. 
2a, head seen sideways ; 2b, underside of head ; 2c, labrum ; 2d, man- 
dible; 2e, maxilla; 2fand 2g, mentum, &c. seen externally and 
internally ; 2h, antenna; 27, ungues. 
Fig. 3. Rhizoplatys cribrarius, and details. 
3a, side view of the head; 36, labrum; 3c, mandible; 3d and 3e, inner 
and outer view of the maxilla; [a, cardo; b, stipes; c, squama palpi- 
fera ; d, galea or outer lobe; e, mando ;] 3, mentum and labial palpi; 
3g, antenna; 3h, terminal joints of anterior tarsus ; 37%, base of pos- 
terior tarsus. 
Fig. 4. Leptognathus Latrellianus, and details. 
4a, front of head above ; 4b, same beneath ; 4c, labrum; 4d, mandible; 
4e, maxilla; 4 f, antenna. 
a i ted Miia ee ~ 
