CONOTRACHELUS. 369 
shining, almost smooth. Femora clavate, each with a sharp triangular tooth and a minute tooth exterior 
to it, the latter on the anterior pair narrowly separated from the larger one. Tarsi rather elongate, the 
claws with a short tooth. 
Length 43-6}, breadth 23-3} millim. (¢ 2.) 
flab. Mexico, Jalapa (Hége); Guaremana, San Juan, Senahu, and Sabo in Vera Paz, 
Cerro Zunil, Volcan de Atitlan (Champion) ; Nicaragua, Chontales (Janson); Costa 
Rica, La Palma (Biolley) ; Panama, Volcan de Chiriqui, Caldera (Champion). 
Found in abundance at Cerro Zunil, sparingly elsewhere. ‘This is one of many very 
similar forms, and mainly recognizable by the narrowly separated teeth of the anterior 
femora, the rugose prothorax, the lateral margins of which are more or less sinuate 
or angulate, and the cylindrical rostrum. Fresh specimens have two minute ochreous 
spots on each side of the disc of the prothorax. 
50. Conotrachelus germanus, sp. n. 
Very like C. sinuaticollis, but with the triangular femoral tooth shorter, the minute outer prominence nearly 
or quite obsolete ; the first and second elytral costee once or twice interrupted, the first sinuate beyond 
the middle; the vestiture ochreous or fulvous above, condensed into larger patches at the base of the 
elytra, and a small oblique spot on each side of the disc of the prothorax anteriorly ; the prothorax 
transverse, with the sides subparallel and crenulate from the apical constriction to the base; the ventral 
Segments sparsely, finely punctate. 
Length 51-5}, breadth 23-23 millim. (<.) 
Hab. Guatemata, Volcan de Atitlan, Sinanja (Champion). 
Two specimens from the Volcan de Atitlan and one from Sinanja, differing too 
much from C. sinuaticollis to be included under that species. ‘The very similar 
C. fulvibasis has a less transverse prothorax, the anterior femoral tooth acute in both 
sexes, the vestiture of the elytra (except at the base) intermixed with white, and the 
dorsal coste less interrupted. The cylindrical rostrum separates C. germanus from 
C. sinuatocostatus and C. segregatus. 
51. Conotrachelus nigricans, sp. n. 
Oblong-ovate, moderately shining, nigro-piceous or black, the elytra and legs usually more or less mottled 
with rufo-piceous, the antenne sometimes ferruginous; the vestiture very sparse, fulvous or ochreous, 
that on the elytra somewhat fasciculate and condensed into a small patch at the base of the third 
interstice and another on the shoulder, the elytra also set with very short, fine, decumbent, setiform 
scales. Head densely, rugulosely punctate; rostrum very stout, arcuate, about as long as the head and 
prothorax, densely, rugulosely punctate and feebly tricarinate, closely punctured at the apex, smoother 
in its outer half in the 2, the antenne inserted towards the tip, joints 1 and 2 of the funiculus subequal 
in length. Prothorax strongly transverse, slightly rounded at the sides, narrowed and compressed in 
front, feebly bisinuate at the base; densely, rugulosely punctate, more or less distinctly carinate 
anteriorly. Elytra obliquely constricted beneath the humeri and narrowing from a little beyond this to 
the apex; seriate-punctate, the interstices rugulose or subgranulate, 3, 5, 7, and 9 costate, the ridge on 
3 and 5 twice, and that on 7 once, interrupted. Mesosternum flattened between the coxw, moderately 
protuberant and rounded or subtruncate in front. Ventral segments sparsely, somewhat coarsely 
punctate. Femora clavate, bidentate, the outer tooth minute and distant trom the other. Anterior 
tibie sinuate within. Tarsal claws with a rather long tooth. 
Length 43-5, breadth 23-23 millim. (¢ 2.) 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 4, June 1904. 3 BB 
