22! 



00. Elytra without such 



spots 



■ii. Each of third and fourth abdominal 

 segments with two rows of punc- 

 tures or densely punctured. 



p. Head carinated 



2?p. Head not carinated. 



q. Elytral interstices each with a 

 row of larger scales set 



amongst the others 



qq. Elytral interstices without 

 such larger scales. 

 r. Elytra with third and fifth 

 interstices distinctly wider 



than the others 



/■/■. Elytra with these interstices 



not distinctly wider than 



the others. 



5. Pronotum with majority of 



scales not elevated above 



their containing punc- 



, tures ... 



ss. Pronotum with majority 

 of scales so elevated, 

 f. Abdominal sutures 

 straight. 

 /;. Clothing of upper- 

 surface mostly sooty 

 im. Clothing of upper- 

 surface not at all 



sooty 



it. Abdomen with suture 

 between tw^o basal seg- 

 ments curved in 

 middle. 

 V. Metasternal episterna 

 each with two con- 

 spicuous rows of 

 punctures on pos- 

 terior half 



vv. With one row only ... 

 DD. Punctures of metasternal episterna 

 interrupted. 

 E. Each of third and fourth abdominal 

 segments with one row of punc- 

 tures across middle. 

 vc. Front sides of prothorax with 

 spots of pale scales. 

 X. Pale scales condensed to form 

 an irregular V on elytra ... 

 XX. Pale scales not so condensed. 



ij. Size, 1\ mm., or less 



yy. Size, 8 mm., or more 



wio. Front sides of prothorax with- 

 out pale spots. 



z. Antennae almost black 



zz. Antennae more or less reddish. 



a. Comparatively large and 



robust 



squamiceps 



carinatus 



laterarius 



interstitialis 



pollux 



ma crops 



ichthyosomus 



mixtus 

 hrevirostris 



microfhorax 



flavonotatus 

 majorinus 



corpulentus 



vetustus 



