RHYNCHOPHORA: OTIORITYNCHINLE. 399 
the base itself not or very little wider than that of the prothorax; coarsely punctate-striate (when seen 
abraded), the interstices feebly convex. 
Length 43-53, breadth 2;/,-24 millim. (¢ 2.) 
Hab. Panama, Caldera in Chiriqui (Champion). 
Five specimens. 
SCIAPHILINA. 
DEROSOMUS (p. 168). 
4. Derosomus glaucus, sp.n. (Tab. XV. figg. 26, 26a.) 
2. Elongate, narrow, shining, black, the antennew (the club and apex of scape excepted) rufo-testaceous ; 
thickly clothed (except on the small smooth spots along the elytral interstices) with pale bluish-grey 
scales, the elytral interstices also each set with about two rows of closcly placed, stiff, erect, moderately 
long, dark sete. Head as long as the rostrum, the eyes large; antennie very slender, long, joint 1 of 
the funiculus much longer than 2, about equalling 3 and 4 united, the scape extending to considerably 
beyond the eyes. Prothorax transverse, somewhat rounded at the sides, densely finely punctate 
Scutellum small, transverse, squamose. Elytra elongate, convex, ovate, at the base very little wider 
than the prothorax, strongly sinuate along their lower edge ; punctate-striate, the interstices almost flat. 
Length 54, breadth 2 millim. 
Hab. Mexico, Iguala in Guerrero (Lf/dge). 
One female. Near D. setosus and D. scutellaris, but with shorter and more abundant 
erect setosity on the elytra, the scales uniformly glaucous, the prothorax as finely 
punctured as in D. scutellaris. 
CAUTODERUS (p. 169). 
2. Cautoderus nigrocinctus, sp.n. (Tab. XV. fig. 27.) 
Elongate, narrow, shining, black; thickly clothed with metallic golden-green scales, except on the followinz 
parts, which are bare or very sparsely clad with small blackish scales—a space behind each eye, a 
submarginal vitta on each side of the prothorax, and the suture and three transverse fascic on the 
elytra (the second and third connected along the fourth interstice, as well as along the suture) ; the 
upper surface also set with numerous erect sete, those on the elytra long and closely placed down each 
interstice, the others short. Head a little longer than the rostrum; [antennal scape long, extending 
beyond the eyes, joints 1 and 2 of the funiculus subequal in length, 1 a little longer than 2, conical, the 
others short and subconical *]. Prothorax broader than long, bisinuate at the base, narrowed anteriorly, 
densely, finely punctate. Scutellum minute, acuminate. Elytra elongate, moderately convex, con- 
siderably wider than the prothorax, subparallel in their basal half, the humeri tumid and somewhat 
prominent; coarsely punctate-striate, the interstices feebly convex and each with a row of very small 
smooth spots indicating the position of the sete. Anterior femora strongly, the others more feebly, clavate, 
Length 53, breadth 2 millim. (¢?) 
Hab. Mexico (ex coll. Jekel). 
One specimen, kindly presented to us by Signor A. Solari. Larger and more robust 
than C. mexicanus, Sharp, the femora especially stouter, the scales golden-green, the 
sete much longer, the humeri more prominent, &c. The black markings may be 
partly, but not entirely, due to abrasion. The second ventral segment is comparatively 
short. 
* Taken from Jekel’s note on the specimen, the antenne being broken off. 
2XX 2 
