AGEIOTES. 519 



11. Agriotes miniatocollis. (Tab. XXII. fig. 28, s .) 



Agriotes miniatocollis, Chevr. Coll. Mex. cent. ii. f'asc. 8, no. 199 (1835) '. 

 Agriotes miniaticollis , Cand. Monogr. Elat. iv. p. 369 2 . 



Hab. Mexico l 2 , Orizaba (Salle), Cerro de Plumas (Edge). 



This species is black and shining, with the thorax and propleurae rufous, the pubes- 

 cence very fine and uniform, and partaking of the ground-colour, that on the thorax 

 sparse. The hind coxal plates are a little widened in their inner third. 



12. Agriotes pectoralis. 



Elongate, convex, shining ; deep black, the prothorax, prosternum, and propleurae (except at the base) obscure 

 rufous in one example ; the antennae and legs black or brownish-black, the basal joint of the former 

 pitchy-red ; above somewhat thickly clothed with blackish pubescence : the metasternum and abdomen 

 densely, and the prosternum and propleurae sparsely, clothed with yellowish-white pubescence. Head 

 finely, moderately closely punctate ; antennae reaching the hind angles of the prothorax, joints 2 and 3 

 subequal, 3 very little shorter than 4. Prothorax much longer than broad, subcylindrical, the sides 

 moderately rounded and converging anteriorly, and sinuate behind ; the hind angles long, stout, acute, 

 and divergent, carinate ; the surface closely, very finely punctate, canaliculate from the middle to the 

 base, and with a smooth median line ; the base with a short incisure o-n either side ; the marginal carina 

 distinct throughout. Elytra two and one-half times the length of the prothorax, slightly rounded at the 

 sides, and narrowing from a little below the base, the apices narrow; finely and very shallowly punctate- 

 striate, the striae deeply impressed on the basal declivity, the interstices closely and very finely punctured. 

 Beneath densely and finely, the prosternum and propleurae more sparsely, punctate. Hind coxal plates 

 very little widened inwards. 



Length lO-lO^, breadth 2J-2f millim. 



Hab. Guatemala, Capetillo (Champion). 



Two examples, probably sexes, the example with the rufous thorax having slightly 

 shorter antennae than the black male. This insect can be compared only with 

 A. miniatocollis, from which it may be at once separated by the dense yellowish white 

 pubescence of the under surface, and the longer and more densely punctured thorax. 



13. Agriotes acutus. (Tab. XXIII. fig. 1.) 



Elongate, fusiform, convex, shining; black, brown, or yellowish-brown, the prothorax in pale specimens 

 usually ferruginous or rufous, sometimes with the disc black in the middle (the black in one example 

 extending to the base and apex), the antennae brown, with the basal joint testaceous, the legs broVn or 

 testaceous; above rather sparsely clothed with yellowish-cinereous pubescence, the pubescence on the 

 under surface denser and paler. Head closely, finely punctate ; antennae reaching the hind angles of the 

 prothorax in the female, slightly longer in the male, joints 2 and 3 subequal in length, 3 very little 

 shorter than 4. Prothorax broader than long, rounded at the sides, strongly narrowed in front and 

 constricted behind ; the hiud angles long, narrow, acute, and divergent, carinate ; the surface somewhat 

 closely, moderately finely punctate, the punctuation becoming very sparse on the basal declivity, deeply 

 canaliculate behind, and with a smooth median line ; the marginal carina distinct throughout. Elytra 

 three and one-half times the length of the prothorax, rounded at the sides, and rapidly narrowing from a 

 little below the base, pointed behind, the apices acute and slightly dehiscent ; punctate-striate, the inter- 

 stices almost flat and very finely, rugulosely punctate. Beneath densely and minutely, the prosternum 

 and propleurae sparsely and much more coarsely, punctate. Hind coxal plates a little widened in their 

 inner third. 



Length 9-9f , breadth 2|-2| millim. ( rf $ .) 



