532 SEKKLCOENIA. 



One pair. Differs from all the other Central-American species of the genus in the 

 semierect pubescence of the upper surface, the insect in this respect resembling 

 Hemicrepidius carbonatus. The marginal carina of the thorax is almost obsolete. 

 The presternum and propleurse are closely punctured. The sexes are very dissimilar 

 in appearance. A. hispidus, Lee, has similar pubescence, but differs in numerous 

 details. A. Mrsutus is unknown to Dr. Candeze. 



37. Agriotes mixtus. 



Moderately elongate, rather convex, narrow ( <$ ), broader (§ ), slightly shining; black or piceous, the females 

 with a triangular rufo-ferraginous patch of variable extent on either side at the base, sometimes extending 

 broadly forwards to the apex (leaving an oval black patch on the disc), the elytra often brown or reddish- 

 brown in this sex ; the basal joint of the antennse testaceous, the legs testaceous or brownish ; the prothorax 

 with an oval patch on the disc, and the elytra, except along the suture and at the sides, brownish- or 

 fusco-pubescent, the rest of the pubescence on the upper surface cinereous, that on the under surface dense 

 and whitish. Head densely punctured ; antennae extending to a little beyond the hind angles of the pro- 

 thorax in the male, shorter in the female, joint 3 short, scarcely as long as 2, and much shorter than 4. 

 Prothorax broader than long, gradually narrowing from the base in the female, more cylindrical in the 

 male, the sides rounded in front and feebly sinuate behind ; the hind angles long, acute, and slightly 

 divergent, not carinate ; the surface densely, somewhat coarsely punctate, deeply canaliculate behind ; the 

 base with a distinct incisure on either side ; the marginal carina faint, obliterated at the middle in some 

 specimens, complete in others. Elytra three times the length of the prothorax, a little rounded at the 

 sides, narrowing from about the basal third in both sexes, somewhat pointed behind ; punctate-striate, the 

 interstices feebly convex and rugulosely punctured. Beneath densely and finely, the prosternum and 

 propleurse more sparsely, punctate. Hind coxal plates very little widened inwards. 



Length 6-8|, breadth lf-2| millim. ( d $ •) 



Hob. Mexico, Chilpancingo 4600 feet, and Xucumanatlan 7000 feet, both in Guerrero 

 (H. H. Smith). 



Seven females and one male, the females varying in the colour of the thorax and 

 elytra. Smaller and narrower than A. amabilis, the hind angles of the thorax less 

 divergent, the elytra more deeply punctate-striate, and with the pubescence differently 

 coloured, the third joint of the antenna? shorter, &c. The pale greyish pubescence 

 along the suture and at the sides of the elytra does not form well-defined stripes as in 

 many of the allied species. The male is much narrower than the female. 



38. Agriotes pauxillus. 



Rather short, narrow, convex, slightly shining; piceous or brown, the elytra sometimes with traces of an 

 obscure testaceous submarginal vitta, the abdomen usually in part ferruginous, the basal joint of the 

 antennse and the legs testaceous ; the head, prothorax, scutellum, and under surface, and the elytra with 

 the suture and the sides or a submarginal stripe, clothed with cinereous or yellowish-cinereous pubescence, 

 the pubescence on the rest of the elytra usually fuscous or brownish, the prothorax sometimes with 

 brownish hairs on the middle of the disc. Head very densely punctured ; antennae about reaching the hind 

 angles of the prothorax, joint 3 distinctly shorter than 2, and much shorter than 4. Prothorax slightly 

 broader than long, subcylindrical, the sides rounded in front and almost straight behind ; the hind 

 angles long and acute, feebly divergent, not carinate; the surface densely, finely punctate, shallowly 

 canaliculate behind ; the base feebly incised on either side ; the marginal carina obliterated at the middle. 

 Elytra three times the length of the prothorax, gradually narrowing from about the basal third, somewhat 

 pointed behind, the apices sharp ; punctate-striate, the interstices almost flat and rugulosely punctured, 



