524 SEEEICOENIA. 



pubescence on the upper surface and also that beneath yellowish-cinereous. Head densely, finely punc- 

 tate ; antenna? scarcely 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 feebly sinuate behind ; 

 the hind angles moderately long and acute, feebly divergent, and obsoletely carinate ; the surface densely, 

 finely punctate, obsoletely canaliculate behind, and with a smooth median line ; the marginal carina 

 distinct throughout. Elytra three times the length of the prothorax, a little rounded at the sides, 

 gradually narrowing from the basal third, conjointly rounded at the apex ; punctate-striate, the inter- 

 stices flat and thickly, rugulosely punctate. Beneath densely, finely punctate, the prosternum more 

 sparsely punctured. Hind coxal plates slightly widened in their inner third. 

 Length 6|, breadth If millim. 



Hah. Nicaragua. Chontales (E. M, Janson). 



Two examples, one of which is a female, the other probably a male. This small 

 species somewhat resembles A. tceniatus, but it has the thorax much less elongate, 

 with the discoidal marks (which are formed by darker pubescence only) rounded 

 externally ; the upper surface is also more finely punctured and smoother. 



21. Agriotes binotatus. (Tab. XXIII. fig. 11.) 



Elongate, narrow, convex, slightly shining : pale brown, the prothorax with two rather broad, oblong, darker 

 marks on the disc, the legs testaceous ; above and beneath thickly clothed with pale yellowish-cinereous 

 pubescence, the hairs on the prothorax radiating from the median line. Head densely punctured; 

 antennae about reaching the hind angles of the prothorax, joints 2 and 3 equal in length, 3 shorter than 4. 

 Prothorax slightly longer than broad, subcylindrical, the sides rounded in front and feebly sinuate behind ; 

 the hind angles moderately long, acute, and scarcely divergent, finely carinate ; the surface densely, finely 

 punctate, feebly canaliculate at the base, and with an incomplete smooth median line ; the base with a 

 distinct incisure on either side ; the marginal carina very fine, entire. Elytra rather more than three 

 times the length of the prothorax, and slightly wider than it, somewhat rounded at the sides, rapidly 

 narrowing from a little below the base, attenuate behind ; punctate-striate, the interstices flat and rugu- 

 losely punctured. Beneath densely and finely punctate. Hind coxal plates a little widened in their 

 inner third. 



Length 91-10, breadth 2|-2| millim. 



Hah. Guatemala, Sinanja in Vera Paz (Champion). 



Four examples, probably including both sexes (the female only identified), all from 

 the vicinity of the Sinanja river, a tributary of the Polochic. This insect somewhat 

 resembles A. fulvescens; but it is much narrower, the thorax is shorter, with less 

 produced, scarcely divergent hind angles, the elytra are more finely punctate-striate, 

 &c. The thorax has an oblong darker mark on either side of the disc. 



22. Agriotes vaccinus. (Tab. XXIII. fig. 12.) 



Agriotes vaccinus, Cand. Monogr. Elat. iv. p. 372 \ 



Hah. Mexico, Orizaba {coll. Janson x ), Cordova (Salle) ; Guatemala, Sabo and Sinanja 

 in Vera Paz (Champion), Coban in Vera Paz (Conradt). 



Found in abundance by myself in Vera Paz. This insect is allied to A. longipennis, 

 but differs from it in having the thorax less convex and gradually narrowing from the 

 base, with the surface finely and sparsely punctate, the basal incisures much deeper, 



