puiA. 437 



Pt'lu, 



Head and thorax brown-red ; scutellum blackish ; elytra 

 reddish-yellow, with brownish suture ; under-side more or 

 less blackish ; antennae yellow at base, brown at apex ; 

 legs yellow. Posterior angles of thorax right angles ; apex 

 of elytra slightly rounded. L. 1 1. Common. 



P. diolcamarae, 111. 



Welif/ethes, 



A. Tarsal claws simple, long and narrow, at most with a 

 scarcely visible thickening at base. 



a. Anterior margin of forehead straight or almost 

 straight. 



I, Hinder pairs of tibiae fringed with fine bristles on 

 the obliquely truncate apex only. 



Anterior tibae feebly toothed, gradually more distinctly 

 toward apex. Species large, black, slightly convex ; punc- 

 tuation generally very close, especially on elytra, where it 

 forms indistinct waved transverse lines. 



1, Punctuation of thorax as fine and rather closer 

 than that of elytra; antennae red, with club black. 



Broad oval. Black ; legs brown-red ; pubescence on 

 head, thorax and scutellum gray, on elytra black. Sepa- 

 rate side border of thorax broad. L. 1| — If 1. Common. 



M. rufipes, Gyll. 



2, Punctuation of thorax distinctly stronger and 

 not closer than that of elytra ; antennae with 

 first joint brown, the next few joints red, the 

 club and some joints preceding it black. 



Broad oval. Black ; legs dark brown-red ; pubescence 

 black, often gray toward sides of thorax. Separate side 

 border of thorax narrow. L. 1^ — If 1. Not uncommon. 



AI. luvibaris, Sturm. 



II, Hinder pairs of tibiae fringed witli bristles (and 

 often with spines) at least to middle. 



1, Whole of upper-side with fine network between 

 punctures. 



A A. Anterior tibiae feebly and regularly 

 toothed, gradually rather more distinctly 

 toward apex. 



