DIORYMEROPSIS. 249 
rapidly narrowing from the base, the humeri somewhat swollen; sharply striate, the strie obsoletely 
punctate, the interstices broad, flat, faintly uniseriate-punctate. Beneath coarsely and closely, the ventral 
segments more sparsely, punctate. Prosternal excavation parallel-sided. Femora sulcate beneath. 
Tarsal claws subconnate at the base. 
Length 31, breadth 2 millim. (¢?) 
Hab. Panama, Volcan de Chiriqui (Champion). 
One specimen. Very near D. disjunctus, and with the prosternum similarly sulcate 
and produced, but wanting the coarse scattered elongate scales on the elytra, the 
prothorax less rounded at the sides, the rostrum much shorter and stouter, the tarsal 
claws subconnate at the base. 
3. Diorymeropsis cavimanus, sp. n. 
Rhomboidal, rather narrow, shining, black; the prothorax at the sides, the elytra, under surface, and legs 
sparsely clothed with hair-like white scales, the scales on the elytra rather long and setiform, uniseriately 
arranged down each interstice and clustered into a short oblique streak at the base of the third. Head 
finely punctate, transversely grooved between the eyes; rostrum very stout, a little longer than the 
prothorax, strongly arcuate, thickly punctate, striate at the sides. Prothorax transverse, subconical, 
strongly constricted in front; sparsely, coarsely punctate, smooth along the median line. Scutellum 
oblong. Elytra much wider than the prothorax, subtriangular; sharply striate, the strie obsoletely 
punctate, the interstices broad, flat, and very finely uniseriate-punctate. Beneath closely and coarsely, 
the ventral segments much more finely, punctate, the first segment depressed down the middle in the ¢. 
Prosternal sulcus deep and sharply defined, becoming narrower and shallower between the coxa. 
Anterior femora shallowly, the others deeply, sulcate beneath. Anterior tibie with a long, the other 
tibie with a shorter, apical uncus, the anterior pair hollowed at the apex and also shallowly sulcate 
externally ; tarsal claws subconnate at the base. 
Var. The hair-like white scales on the elytra wanting on the basal half, except at the base of the third interstice. 
Length 23-23, breadth 14 millim. (d 9.) 
Hab. Guatemata, San Gerdnimo (Champion: 3); Panama, Volcan de Chiriqui 
3000 feet (Champion: 3 2). 
Five specimens. Smaller and narrower than D. disjunctus, the rostrum shorter, 
stouter, and more curved, the setiform scales on the elytra finer, the prosternal cavity 
narrowed bebind and deeper in front, the anterior tibie hollowed for some distance 
externally for the reception of the base of the tarsi in repose. The varietal form, 
represented by a single male, is from Guatemala. 
4, Diorymeropsis uncatus, sp. n. 
Rhomboid-ovate, shining, black, the base of the antenne and the tarsi more or less ferruginous; almost 
glabrous above, the under surface and legs sparsely clothed with minute, narrow, whitish scales. Head 
minutely punctate, transversely grooved between the eyes; rostrum strongly arcuate, stout, about as 
long as the head and prothorax, thickly punctate, striate at the sides. Prothorax transverse, convex, 
rounded at the sides, narrowed and strongly constricted in front; coarsely, closely punctate. Scutellum 
small. Elytra somewhat triangular, depressed along the suture at the base; punctate-striate, the 
interstices flat, faintly uniseriate-punctate. Beneath coarsely and closely, the ventral segments 3 and 4 
more sparsely, punctate, the first segment hollowed down the middle in the g. Prosternum with a 
deep sulcus, which is narrowed between the coxe, the basal portion broad and covering the mesosternum. 
Anterior tibiz in the ¢ strongly, and in the @ more feebly, unguiculate at the apex; tarsal claws 
subconnate at the base. 
Length 2-2, breadth 1,,-13 millim. (¢ 9.) 
BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 5, May 1908. 2 KK 
