melu;kthks. 439 



h b. Elytra transversely wrinkled. 



Ovate, somewhat convex. Black, shiny; antennae and 

 legs black or pitchy. L. f 1. Eare. M. subrugosus, Gyll. 



S B, Anterior tibiae strongly toothed from near 

 base. 



a a. Teeth on anterior tibiae gradually stronger 

 from base toward apex. 



Oblong oval, rather flat. Leaden-black, antennae and 

 legs red- brown. Thorax slightly narrowed in front ; pu- 

 bescence gray. L. | 1. Not uncommon. 



M. serripes, Gyll. 

 b b. Teeth on anterior tibiae suddenly very 

 strong before middle. 



Oblong, slightly convex. Black ; antennae and legs red, 

 hinder femora darker. Thorax distinctly narrowed in 

 front ; pubescence brownish. L. f 1. Eare. 



M. nanus, Er. {M. marrubii, Sharp's Cat.) 



C C. Anterior tibiae feebly toothed at base, 

 strongly from about middle. 



a a. Anterior tibiae with a strong, prominent 

 tooth in middle and another near apex, with 

 some small teeth between them. 



Oblong oval, broad, convex. Black ; antennae red- 

 brown, first two joints and club lighter ; legs pitch-black, 

 anterior tibiae and tarsi yellowish-red ; pubescence fine, 

 close and silky, brownish. Thorax scarcely narrowed in 

 front, posterior angles slightly obtuse ; anterior legs broad, 

 especially the tarsi. L. 1 1. Eare. 3f. jjcilmatus, Er. 



b b. Anterior tibiae with some strong, promi- 

 nent teeth at or toward apex. 



A a. Upper-side very closely and generally 

 very finely punctured. 



Pubescence distinct; anterior tibiae almost always 

 strongly dilated ; species rarely very shiny. 



A 1, Upper-side with fine transverse 

 scratches between punctures. 



a 1. Transverse scratches on elytra 

 only, not distinct. 



Oblong-ovate, slightly convex. Black ; antennae black- 



