collected in the Indian Islands by Mr. A. R. Wallace. = 123 
. CoLyDIInz. 
Antenne free at the base ........ sata glatn iss sid-< eich a Nematidium, Er. 
Antenne hidden at the base. 
Antenne clavate. 
Prothorax and elytra smooth ..........00.. Ocholissa, Pasc. 
Prothorax and elytra carinate ............ ». Lthris, 1. g. 
Antenne not clavate............ otiniind doiine Gempylodes, n. g. 
BoruRivERIN 2. 
Basal joint of the tarsi elongate. 
Club of the antenne transverse ............ .» Petalophora, Westw. 
Club of the antennze ovate or round .......... Metopiestes, Pasc. 
Basal joint of the tarsi short. 
Prothorax with a deep transverse cleft posteriorly Machlotes, Pasc. 
Prothorax not cleft transversely. 
Posterior cox widely remote. 
Prothorax with a central impression ...... Bothrideres, Ey. 
Prothorax without a central impression .... Dastarcus, Walk. 
Posterior coxe moderately remote. 
Body ovate. 
Tibize sublinear. 
Interfemoral process broadly triangular. Trachypholis, Er. 
Interfemoral process truncate ...... .. Chorites, Pasc. 
Tibize fusiform. 
Sides of the prothorax nearly entire .. <Atyscus, n. 2. 
Sides of the prothorax denticulate .... Hyberis, Pasc. 
Body cylindrical: cd ssslice eas iieiviaidieis'e 5 Minthea, Pase. 
PYCNOMERINZE. 
Antenne eleven-jointed ...:......:....... »»»» Penthelispa, Pasc. 
CERYLONINZ. 
Antenne ten-jointed .........cceceecees Sipe cotate Cerylon, Latr. 
Colobicus parilis. 
Pascoe, huj. op. i. p. 102.—Batchian. 
Of the five species of this genus now in my collection, this and 
Colobicus conformis agree with the European Colobicus emarginatus 
in having the third antennal joint as long or longer than the three 
succeeding joints together, while in the other two species* it scarcely 
* One of these species I owe to the kindness of Dr. Schaum. The following 
is its diagnosis and principal characters :— 
Colobicus rugosulus. 
C. oblongus, rugosus, fuscus, opacus, ferrugineo anguste marginatus; elytris 
confertim granulatis. 
Hab. Ceylon. 
