526 SEEKICOKNIA. 



some specimens with a broad space down the disc of each, and the margins fusco-pube'seent with a few 

 paler hairs intermixed (leaving a sutural and a submarginal stripe of pale hairs). Head very densely 

 punctured ; antennae short, not reaching the hind angles of the prothorax, joints 2 and 3 equal, 3 shorter 

 than 4. Prothorax about as long as broad, subcylindrical, the sides rounded in front and straight or very 

 feebly sinuate behind ; the hind angles long and acute, not or feebly divergent, without distinct carina ; 

 the surface very densely, finely punctate, canaliculate behind ; the base feebly incised on either side ; the 

 marginal carina complete. Elytra two and two-thirds the length of the prothorax, subparailel to about 

 the basal third and narrowing thence to the apex, somewhat pointed behind; punctate-stnate, the 

 interstices flat and rugulosely punctured, rougher at the base. Beneath densely and finely, the prosternum 

 and propleurse more coarsely, punctate. Hind coxal plates slightly widened in their inner third. 

 Length 7-8, breadth 2-2§ millim, ( $ .) 



Hal. Guatemala, Capetillo and San Geronimo {Champion). 



Eight specimens, females only identified. More parallel than the females of A. guate- 

 malensis, A. opacicollis, and A. mixtus, the thorax less transverse and broader anteriorly 

 than in the first-mentioned species, and with a complete marginal carina. It has a 

 squarer thorax than most of its allies. The pubescence of the elytra is almost 

 unicolorous in some specimens, and in others it forms a paler sutural and submarginal 

 stripe. A specimen from San Geronimo is figured. 



26. Agriotes cinereiventris. 



Kather short, narrow ( c? ), a little broader ( $ ), convex, shining, the head and elytra duller ; black, — the male 

 with the propleurao and prothorax rufo-ferruginous, the latter with an oval black mark on the disc 

 extending to the base and apex, — the basal joint of the antennae rufo-testaceous, the legs testaceous ; 

 above rather sparsely pubescent, the pubescence on the head and prothorax fusco-cinereous, that on the 

 scutellum, suture, and sides of the elytra in front cinereous, and on the rest of the elytra fuscous ; beneath 

 thickly cinereo-pubescent. Head densely punctured ; antennae extending to a little beyond the hind 

 angles of the prothorax in the male, slightly shorter in the female, joints 2 and 3 equal in length, 3 much 

 shorter than 4. Prothorax about as long as broad, subcylindrical, the sides rounded in front, and in the 

 male sinuate behind, subparailel towards the base in the female ; the hind angles moderately long and 

 acute, divergent in the male, without carina ; the surface thickly, rather coarsely punctate ; the base 

 incised on either side; the marginal carina distinct throughout. Elytra two and two-thirds i he length 

 of the prothorax, narrowing from about the middle in both sexes, pointed behind, the apices acute ; 

 punctate-striate, the interstices flat and densely rugulose, rougher at the base. Beneath densely and 

 finely, the prosternum and propleurse coarsely and more sparsely, punctate. Hind coxal plates scarcely 

 widened inwards. 



Length 6-7§ , breadth lf-2 millim. ( S $ •) 



Hah. Mexico, Chilpancingo in Guerrero 4600 feet (//. H. Smith). 



One male and three females. This species is of about the same size as A. alter nus; 

 but it is more parallel, the thorax is coarsely punctured, and the elytra are deeply 

 punctate-striate, with the interstices more rugose. The females are broader than the 

 male, and entirely black. The elytra are much duller than the thorax. 



27. Agriotes insolitus. (Tab. XXIII. figg. 16, c? ; 17, $ .) 



Athous insolitus, Laf'erte, in litt. 



S . Moderately elongate, narrow, rather convex, shining ; black, the elytra sometimes with a faint brassy 

 lustre, the antennae piceous or pitchy-brown, with the two basal joints testaceous, the legs testaceous : above 



