1900.] Cataloiiuc of the Colcoptcra of South A/rim. 21> 



rrotlior;ix finely granulate, very parallel, not broader 

 than the base of the elytra, not sinuate below the shoul- 

 ders ; pygidium with a longitudinal median line .. .. pro.viiiuts. 



Prothorax similar to that of S. jJroxiDius ; elytra a little 

 sinuate below the shoulders ; pygidium without longi- 

 tudinal line c(i(/iiahis. 



C. Elytra moderately eonvex, distinctly sub-gibbose along the 

 suture, not sub-parallel. 



D-. Mentum simple. 



a-. Head with a frontal tubercle. 



Prothorax covered with deep sub-scabrose, nearly 

 coalescing foveae, elytra not much attenuate laterally 

 behind, strife finely geminate, anterior tibi;e not 

 serrate inwardly ; size modei'ate alieiuis. 



Prothorax covered with moderately closely set punc- 

 tures, striae of elytra very fine, simple, anterior tibia- 

 strongly serrate inwardly ; size large ■cunbcxutniis. 



a'. Head without a frontal tubercle. 



Prothorax with scattered, shallow punctures, and 

 four more or less distinct impressions in the posterior 

 part ; intervals of elytra raised surl. 



Prothorax with two indistinct impressions ; intervals 



of elytra plane viator. 



Prothorax covered with irregular foveate punctures, 

 slightly granulose lateral!}-; intervals of elytra raised, 

 and with one series of foveaj on each — 



Posterior tibiffi normal fiincbris. 



Posterior tibiye strongly bi-sinuate intcrstiticdis. 



Prothorax covered with shallow fovete enclosing a 

 minute granule ; intervals of elytra with a double 

 series of very broad hut shallow punctures rugosiis. 



Prothorax sparingly and not deeply i^unctured ; 



elytra very finely shagreened ambigmi^. 



Prothorax very finely punctato-grauulate ; anterior 



tibipe not serrate nor laminate safi/riis. 



Prothorax very finely and closely granulose ; anterior 

 tibiae with a distinct inner lamina deeply emarginate 

 in the posterior part in'ofanus. 



Prothorax very finely and closely granulose ; anterior 



tibiae simple imcatns. 



D". Mentum x>roduced in a vertical tubercle. 

 a. Head tuberculate in the frontal part. 



