518 SERBICORNIA. 



type ( e ), and four from Guatemala. It is black, with the elytra flavo-ferruginous or 

 castaneous. The pubescence is dense and rather coarse, fulvous or fulvo-cinereous 

 above, in some specimens whiter at the base or hind angles of the thorax and on the 

 scutellum, and cinereous or yellowish-cinereous beneath. The elytra are more elongate 

 and more acuminate at the tip than in most of the allied forms ; they are consider- 

 ably wider than the thorax. The thoracic pubescence has the appearance of being 

 transversely combed inwards on the disc. The type is figured. 



9. Agriotes tasniatus. (Tab. xxil. fig. 26, <s .) 



Agriotes tceniatus, Cand. Monogr. Elat. iv. p. 364 \ 



Hab. Mexico, Etla, Parada, Capulalpam, Yolos (Salle), Oaxaca (coll. Janson), 

 Cordova, Almolonga, Playa Vicente, Tapachula in Chiapas (Hoge) ; Guatemala 

 (coll. Janson *), Aceytuno (Salvin), Zapote (Champion). 



Found in numbers by myself at Zapote. Mexican specimens are considerably 

 larger than those from Guatemala, irrespective of sex. Easily distinguishable from its 

 allies by the two broad black vittee on the thorax, which in some specimens are almost 

 coalescent, so as to form a large discoidal patch, the rest of the thorax and the margins 

 of the pro pleurae being rufous or ferruginous. The thorax is densely, rather coarsely 

 punctate, with a smooth slightly raised median line; thickly pubescent, the pubescence 

 on the rufous portion being yellowish-cinereous and that on the vittse fuscous or blackish- 

 brown. The elytra have the suture and a narrow line on the outer part of the disc 

 clothed with whitish or yellowish-cinereous pubescence, that on the other parts being 

 fuscous. The pubescence on the head and scutellum is whitish. The type is a small 

 male. A. tceniatus is smaller and narrower than A. pulcherrimus, and has a differently 

 coloured, more coarsely punctured thorax. A specimen from Cordova is figured. 



10. Agriotes bicolor. (Tab. XXIL fig. 27.) 



Agriotes bicolor, Cand. Monogr. Elat. iv. p. 370 \ 

 Hab. Mexico (coll. Janson, ex Laferte l ). 



The only specimens I have seen of this species are the two types in the Laferte 

 collection. It is deep black in colour and shining, with the metasternum and abdomen 

 rufo-ferruginous, and the legs and the basal joint of the antennae testaceous ; the 

 pubescence is fine and rather sparse, yellowish-cinereous on the scutellum and 

 partaking of the ground-colour on the rest of the surface. The basal incisures of the 

 thorax are deep. This insect closely resembles the black forms of Hemicrepidius 

 instabilis. 



