CONOTRACHELUS. 4927 
rugulosely punctate, the interspaces here and there obliquely raised or granulate, two small granules 
being conspicuous at about the middle of the disc, the latter carinate to near the base. LElytra cordate, 
seriate-punctate, striate towards the suture, the interstices dull and faintly granulate, 3, 5,7, and 9 
sharply costate, the ridge on 3 sometimes interrupted a little below the base. Mesosternum broadly 
depressed between the intermediate coxew, the sides nodose in front. Ventral segments sparsely, rather 
coarsely punctate. Femora unidentate. Tarsal claws with a short tooth. 
Length 5-6, breadth 24-3 millim. (¢ @.) 
Hab. Guatemata, Cerro Zunil, Volcan de Atitlan (Champion); Panama, Bugaba 
(Champion). 
Four specimens, three of which are from Guatemala. There are numerous Central- 
American species superficially very like C. alternans; but the former have a smooth 
shallow cavity in the front of the metasternum for the reception of the apex of the 
rostrum, whereas in the present insect the front of the metasternum is very coarsely 
punctate and almost flat. 
155. Conotrachelus validus, sp.n. (Tab. XXI. figg. 12, 12a, 2; 124, tarsal 
claw.) 
Subovate, broad, robust, shining, piceous, the elytra and legs more or less mottled with ferruginous, the 
rostrum and antennz almost entirely of that colour; the vestiture of the prothorax, above and beneath, 
very dense (becoming sparser on a large subtriangular space on the disc behind), ochreous or whitish, 
that of the rest of the surface moderately close, ochreous or fulvous, slightly intermixed with white, and 
somewhat fasciculate on the elytra, the latter with a dense white or ochreous patch on the humeri in 
front, and the mesothoracic episterna similarly clothed, the femora biannulate, the anterior pair with a 
short fulvous or ochreous line at the base above. Head densely, rugulosely punctate; rostrum moderately 
stout, curved, about as long as the head and prothorax, rugulosely punctate and feebly carinate at the 
sides towards the base, the smooth, convex, median ridge widening forwards and gradually merging into 
the very sparsely punctate apical portion, the antenne inserted at about one-fourth from the tip, joints 1 
and 2 of the funiculus equal inlength. Prothorax convex, subconical, nearly as long as broad, compressed 
at the sides anteriorly, and moderately bisinuate at the base; coarsely, rugosely punctate, and carinate 
down the anterior half, the narrow raised interspaces crescentiform. Elytra very broad, subtriangular, 
the humeri obliquely truncated in front; coarsely seriate-punctate, the punctures deep and rounded, the 
interstices rugulose and obsoletely granulate, 3, 5, 7, and 9 costate throughout. Meso- and metasternum 
slightly depressed down the middle. Ventral segments sparsely, finely punctate. Legs stout; femora 
strongly clavate, unidentate; tarsal claws with a short tooth. 
Length 7-73, breadth 44,1, millim. ( 2.) 
Hab. Panama, Bugaba, Volcan de Chiriqui, ‘Tolé (Champion). 
Two females. Larger and broader than C. lateralis, the dense vestiture of the 
prothorax more extended over the disc, the humeri a little more prominent, the tarsal 
claws with a much shorter tooth, the elytra without conspicuous §ne sete. 
156. Conotrachelus lateralis, sp.n. (Tab. XXI. figg. 13, 13a, ¢; 13 4, tarsal 
claw; 13, terminal segments of abdomen.) 
Subovate, robust, shining, piceous, the elytra and legs mottled with ferruginous, the antenne entirely of that 
colour; the vestiture rather close and coarse, ochreous or fulvous, slightly intermixed with white, 
condensed into an interrupted, irregular, transverse post-median fascia on the elytra, the prothorax with 
a broad, dense, white or ochreous band on each side, extending halfway down the flanks, and continued 
3II2 
