616 SERKICORNIA. 



beneath piceous, the abdomen paler; the upper surface clothed with fine pallid pubescence. Head, 

 prothorax, and scutellum thickly, minutely punctate; antennae moderately long, not very slender, joint 3 

 small, scarcely as long as 2, 4-11 rather elongate, gradually decreasing in length ; prothorax convex, 

 short,' narrowing from the base, finely margined at the sides ; elytra thickly, finely punctate, the punctua- 

 tion a little coarser than that of the prothorax, narrowly margined at the sides. 

 Length 2§, breadth 1§ millim. 



Hab. Mexico, Teapa in Tabasco (H. H. Smith). 



One specimen. This insect is of the same general shape as 8. saltator; but it is a 

 little shorter and smaller, the antenna? are less elongate and not so slender, and the 

 sides of the thorax are much more feebly margined. These differences preclude 

 the possibility of its being a colour-variety of that species. The elytra appear to 

 have a reddish -yellow spot a little below the humeri, immediately in front of the 

 lateral black patch. 



17. Scirtes longulus. 



Oblong-oval, convex, shining ; nigro-piceous, the head and prothorax black, the margins of the latter rufescent, 

 the antenna? with the basal 4-6 joints testaceous, the others black or brown, the legs testaceous, with the 

 femora piceous, except at the apex ; the upper surface clothed with short, fine, decumbent, fulvo-cinereous 

 hairs. Head, prothorax, and scutellum sparsely, minutely punctate ; antennae long and slender, joint 3 as 

 long as 2, 4-11 very elongate, the outer joints diminishing in length ; prothorax very short, convex, 

 narrowing from the base, sharply margined at the sides ; elytra rather elongate, thickly, finely punctate, 

 the punctuation much coarser than that of the prothorax, narrowly margined at the sides. 



Length 3^-31, breadth 2 millim. 



Hab. Guatemala, San Geronimo (Champion). 



Three specimens. The only other Central- American species nearly allied to this is 

 S. angustatus, from which the present insect may be distinguished by its more convex 

 shape, larger size, and coarser punctuation, as well as by its darker colour. It is much 

 narrower and more oblong than S. pila.tei, &c. 



18. Scirtes angustatus. 



Oblong, subparallel, narrow, depressed, shining ; obscure rufo- or fusco-testaceous, the elytra a little darker 

 than the head and prothorax, the antenna? and legs entirely testaceous ; thickly clothed with fine pallid 

 pubescence. Head, prothorax, and scutellum somewhat closely, extremely minutely punctate; antennae 

 long and very slender, joint 3 as long as 2, 4-11 very elongate, the outer joints decreasing in length ; 

 prothorax convex, short, feebly rounded and acutely margined at the sides, narrowing from the base ; 

 elytra long, flattened or transversely depressed on the disc a little below the base, very closely, minutely 

 punctate, the punctuation coarser than that of the prothorax, narrowly margined at the sides; upper 

 spur of the posterior tibise barely half the length of the first tarsal joint. 



Length 2|-3, breadth 1^-1§ millim. 



Hab. Panama, Caldera and David in Chiriqui (Champion). 



Three specimens. Differs from all our other species in its narrow, depressed, 

 subparallel shape, the insect having very much the facies of a small Cyphon. The 

 upper spur of the hind tibia? is shorter than usual. 



