162 Mr. G. ©. Champion’s Notes on 
Hab. Mexico, Omilteme in Guerrero, 8,000 feet (H. H. 
Smith). 
One specimen. This is so different from any of the 
previously known Mexican species of the genus that it is 
worthy of a name. The common angulate elytral fascia 
is somewhat M-shaped, as seen from above. C. M-nigrum 
has the general shape of the European C. alm. The 
Hawaiian C. signatus, Perkins, has somewhat similar 
elytral markings. 
TENEBRIONIDAE. 
CoRTICEUS. 
Corticeus, Piller and Mitterpacher, Iter per Pos. Sclav. p. 87 
(1783); Champion, Biol. Centr.-Am., Coleopt. iv, 1, 
p. 171 (18886). . 
Hypophloeus, Fabricius, in Schneider’s Neu Mag. Ent. i, 1, 
p. 24 (1791). 
Six species of this genus were recorded by myself from 
Central America in 1886. The one now added approaches 
C. mexicanus, Reitt. 
*Corticeus sordidus, n. sp. 
Elongate, narrow, cylindrical, shining, testaceous, the eyes black. 
Head densely, finely punctate, the transverse frontal groove deep, 
the eyes very large and coarsely facetted; antennae with joints 
6-11 very stout, 6-10 strongly transverse. Thorax convex, longer 
than broad, finely margined at the sides and base, the sides very 
feebly rounded and constricted immediately before the hind angles, 
the latter just visible; closely, minutely punctate. Elytra 
elongate, parallel, about as wide as the thorax; alutaceous, with 
rows of fine punctures, the interstices flat, each with a single irregular 
row of scattered punctures, which are very little smaller than those 
of the striae. 
Length 33, breadth ? mm. 
Hab. GUATEMALA, near the city (Champvon). 
This small species is very different from any of the other 
described Central American forms, and is more like some of 
the Palaearctic members of the genus (C. linearis, etc.) 
found in pines. The single example obtained was placed 
by mistake amongst our unnamed Clavicornia, and was 
thus overlooked. 
