CORTICEUS, ; 173 
middle, the anterior margin and the oral organs more or less red; antennee short, the seven outer joints 
moderately widened, the joints somewhat closely articulated, the two basal joints and the apical one 
ferruginous, the rest piceous; prothorax transversely convex, coarsely and rather closely punctured, the 
sides slightly rounded, about equally narrowed at the base and apex, the base and apex almost straight, . 
the anterior angles obtuse, the posterior angles distinct ; elytra truncate at the base, the humeri rounded, 
finely and very distinctly punctured, the punctures arranged in close irregular rows; legs reddish brown, 
the tibize darker, the outer apical angle of the anterior tibie angularly produced. 
Length 33-4 millim. (¢ 2.) 
Hab. GuateMata, Capetillo (Champion). 
Two examples. This species may easily be known from C. longicornis by the shorter 
antennee, the differently formed head, and the thorax more convex and more rounded 
at the sides. . 
5. Corticeus pallidipennis. (‘lab. VIII. fig. 5.) 
Subcylindrical, convex, black, shining. Head rather coarsely and somewhat closely punctured, black, the 
anterior margin and the oral organs more or less red; antenne stout, the seven outer joints very broad, 
the four basal ones narrow, the two basal joints red, the rest black, the joints not ciosely articulated ; 
prothorax finely and sparingly punctured, the apex almost straight, the base broadly but feebly rounded, 
the angles distinct ; elytra not twice the length of the prothorax, the base truncate, confusedly and finely 
punctured, sordid yellow or testaceous, a large triangular scutellar patch continued narrowly along the 
suture to the apex, and rarely the extreme apex and lateral margins, piceous or black; legs light ferru- 
ginous, the tibiz and femora often darker, the outer apical angle of the anterior tibi angularly produced ; 
beneath shining, very coarsely and closely punctured anteriorly, the metasternum and ventral surface 
smoother and sparingly punctured. 
Length 3-32 millim. 
Hab. Mexico, Cordova (Sallé); GuatEMaua, near the city, Capetillo, Zapote, Cerro 
Zunil (Champion). 
I met with this species in great profusion in various parts of Guatemala, beneath 
sappy bark; three examples only from Mexico. 
6. Corticeus crassicornis. (Tab. VIII. fig. 6.) 
- Subcylindrical, moderately convex, deep black, very shining. Head finely and sparingly punctured; antenna 
very stout, long, the joints not closely articulated, the seven outer joints very broadly widened, the basal 
joint ferruginous, the rest deep black ; prothorax slightly rounded at the sides, narrowing a little ante- 
riorly, widest about the middle, the base and apex almost straight, the anterior angles very obtuse, the 
posterior arigles rectangular, the surface finely and distantly punctured; elytra comparatively broad and 
short, a little wider than the prothorax at the base, if anything widest behind the middle, the base almost 
straight, confusedly, finely, and sparingly punctured ; legs thin, black, the cox, knees, and tarsi more or 
less ferruginous, the outer apical ‘angles of the anterior tibize produced into a sharp tooth ; beneath deep 
black, very shining, very closely and coarsely punctured anteriorly, the metasternum and ventral surface 
very sparingly and distantly punctured. 
Length 3-3} millim. 
Hab. Guatemaa, Capetillo (Champion). 
® 
Eight examples. A comparatively short and broad species, with very stout antenne ; 
the upper and under surfaces entirely deep black, and very shining. 
