434 SEKRICOENIA. 



a little below the base, the interstices costate before the apex. There is a double system 

 of punctuation, above and beneath. The South-American H. tetraspilotus (Guer.) and 

 H. crucifer, Cand., have similar long oblique sulci on the thorax at the base. A 

 Champerico specimen is figured. 



9. Horistonotus spernendus. 



Cardiophorus spernendus , Erichs. in Germar's Zeitschr. fiirEnt. ii. p. 320 \ 

 Horistonotus spernendus, Cand. Monogr. Elat. iii. p. 261 2 . 



Hab. Mexico, Tapachula in Chiapas (Edge); Guatemala, Yzabal (Salle), San 

 Geronimo, Zapote, Rio Naranjo (Champion) ; Panama, San Feliz in Chiriqui (Champion). 

 — Colombia 1 2 ; Venezuela 2 ; Amazons, Para 2 . 



Ten examples, one or two from each locality. This small species has a well-defined 

 sulcus at the base of the thorax on either side, the base itself subtruncate between 

 this and the broad median lobe. 



10. Horistonotus duplicatus. 



Elongate, rather convex, opaque, thickly clothed with yellowish- cinereous pubescence ; piceous or brown, the 

 antennae ferruginous, the legs testaceous, the under surface piceous or reddish-brown. Head densely, 

 finely punctate, with coarse punctures intermixed ; antennae rather slender, short, about reaching the 

 hind angles of the prothorax in the female, a little longer in the male. Prothorax very convex, a little 

 broader than long, not much wider at the base than at the apex in the female, the sides strongly rounded 

 from the middle forwards and gradually and somewhat obliquely converging behind ; the hind angles 

 moderately produced ; the surface densely, finely punctate, with indistinct intermixed scattered coarser 

 punctures, which extend to the base, canaliculate behind ; the base sinuate and bi-ineised on either side. 

 Scutellum concave. Elytra two and one-half times the length of the prothorax, and of about the same 

 Avidth at the base, narrowing from the basal third, the humeri rounded ; coarsely punctate-striate, the 

 interstices convex and thickly punctured. Beneath densely, very finely punctate, with intermixed coarser 

 punctures. Claws rectangularly dilated from the middle to the base. 



Length 5f-6f , breadth lf-2^ millim. ( <$ $ .) 



Hab. Mexico, Tapachula in Chiapas (Hoge). 



One pair. This species chiefly differs from its allies in the fine, dense punctuation 

 of the thorax, with scattered coarser punctures intermixed, which are not easily seen 

 till the pubescence is removed. The surface is opaque and thickly pubescent. The 

 sides of the thorax are almost straight, but gradually and obliquely converging, behind. 

 It does not accord with any of the species described by Dr. Horn. 



11. Horistonotus flavipes. 



Moderately elongate, rather convex, shining, sparsely clothed with fine yellowish-cinereous pubescence ; black, 

 piceous, or obscure reddish-brown, the front of the head and the anterior margin and hind angles of the 

 prothorax sometimes rufescent ; the legs and antennae testaceous. Head sparsely, rather coarsely punc- 

 tate, with a few fine punctures intermixed ; antennae slender, rather short, extending to a little beyond 

 the humeri. Prothorax convex, broader than long, much wider at the base than at the apex, the sides 

 rounded and converging anteriorly and subparallel behind ; the hind angles rather short and excavated 

 above for the reception of the humeri ; the surface very finely, somewhat sparsely punctate, with inter- 



