CONOTRACHELUS. 407 
median fascia (and sometimes a small fulvous spot at the apex of the eighth interstice), the femora fulvous 
at the apex in front and faintly annulate with white or ochreous. Head densely punctate, the eyes 
widely separated ; rostrum short and stout, about as long ag the prothorax, feebly curved, slightly depressed 
at the base above, rugulosely punctate and finely 5-carinate, the antenne inserted towards the tip, joint 2 
of the funiculus much shorter than 1, 5-7 transverse. Prothorax broader than long, a little rounded at 
the sides anteriorly, narrowed and slightly constricted in front, the hind angles obtuse, the base deeply 
bisinuate; densely, confluently punctate. Elytra barely one-half wider than the prothorax, subparallel 
in front, the humeri rounded and not prominent; seriate-punctate, the interstices dull and alutaceous, 
3, 5, 7, and 9 narrowly, uninterruptedly costate. Mesosternum flattened between the coxe. Ventral 
segments coarsely punctate. Legs short and stout ; femora unidentate at about the middle ; tarsal claws 
with a very short tooth. 
Length 32-4, breadth 1,%-2 millim. (<.) 
Hab. Mexico, Jalapa (Hoge) ; Guatemaua, Mirandilla (Champion). 
Two specimens. A small, robust species, with comparatively narrow elytra, stout 
legs and rostrum, and opaque upper surface; the prothorax with an oblique white line 
on each side; the elytra in great part rufo-ferruginous, almost bare towards the base, 
with a post-median white fascia, the alternate interstices uninterruptedly costate. The 
two lines on the prothorax are contiguous in front in the Mexican specimen, and 
separated in the Guatemalan one. There is an allied form from Colombia in the 
British Museum. 
120. Conotrachelus isthmicus, sp. n. 
Oblong-ovate, rather narrow, shining, black or piceous ; the vestiture rather coarse, sparse, whitish and fulvous 
intermixed, somewhat fasciculate on the elytra, the latter with indications of a small condensed fulvous 
spot on each shoulder and another at the base of the third interstice, the clothing of the under surface 
and legs finer and almost entirely whitish. Head closely punctate, transversely depressed and obsoletely 
foveate between the eyes above, the latter separated by less than the width of the rostrum ; rostrum stout, 
curved, a little longer than the prothorax, rugulosely punctate and feebly 5-carinate, sparsely punctured 
and much smoother towards the tip, the antenne inserted a little before the apex, joints 4~7 of the 
funiculus transverse, 2 much shorter than 1. Prothorax transverse, rounded at the sides anteriorly, 
constricted and much narrowed in front, deeply bisinuate at the base ; coarsely, rugosely punctate, the 
disc sometimes with a smooth narrow space or faint carina about the middle. Elytra barely one-half 
wider than the prothorax, narrowing from a little below the base, sinuate in front, the humeri rounded ; 
coarsely seriate-punctate, the punctures subquadrate, the interstices narrow, 3, 5, 7, and 9 moderately 
costate throughout. Mesosternum flattened between the coxe, prominent and binodose in front. Ventral 
segments sparsely, finely punctate. Legs stout; femora clavate, sharply unidentate, the tooth on the 
anterior pair obsolete in the ¢; intermediate and hind tibie curved, especially in the ¢, all three pairs 
strongly unguiculate in this sex ; tarsal claws with a very short tooth. 
Length 4-43, breadth 2-2,1, millim. (d 2.) 
Hab. Panama, Volcan de Chiriqui, Tolé (Champion). 
Five males and one female, the former wanting the tooth on the anterior femora, 
and the latter with all the femora unidentate and the rostrum a little smoother 
than in the others. The coarsely punctate prothorax, the relatively narrow elytra, 
the curved hind tibie, and the sparse vestiture, separate it from most of the allied 
forms. 
