MAGDALINUS. 163 



b b. Tarsal claws simple ; length If — 2 lines. 



Black ; elytra black-blue. Eostrum almost longer than 

 thorax, strongly curved ; thorax much narrowed in front, 

 scarcely constricted, very closely punctured ; elytra with 

 deep punctured striae, interstices extremely finely sha- 

 greened, with a regular row of punctures ; anterior femora 

 with a large pointed tooth. L. If — 2 1. Eare. 



M. dujplicatus, Germ. 

 2, Head impunctate. 



Similar to M. duplicatus, but more ovate, rostrum more 

 robust, striae on elytra wider. Eare. M. Heydeni, Des L. 



II, Sides of thorax toothed in front. 



Black, dull ; antennae and tarsi pitch-brown. Eostrum 

 short, moderately curved ; thorax slightly convex, closely 

 punctured ; elytra with moderately strong punctured striae, 

 interstices flat, closely shagreened ; anterior femora with a 

 pointed tooth. L. 2| 1. Common. 



M. atramentarius, Marsh. 



b. Thorax much broader than long. 



Black, dull. Eostrum distinctly punctured at base ; 

 thorax rounded at sides, narrowed at apex, very closely 

 punctured ; elytra with strong, somewhat distinctly punc- 

 tured striae, interstices somewhat convex, very finely and 

 extremely closely granulate ; femora indistinctly toothed. 

 Eostrum of male somewhat dilated at apex. L. 11 — If 1. 

 Not uncommon. M. c era si, Lin. 



S. Femora not toothed. 



a. Thorax with distinct lateral tubercles. 



Black, dull ; antennae (except club) reddish-yellow- 

 brown. Eostrum as long as head, straight, very finely 

 punctured ; thorax narrowed in front, very closely punc- 

 tured ; elytra nearly cylindrical, with rather deep notched 

 striae, interstices narrow, convex, finely wrinkled. L. 1^ 

 — 1| 1. Common. M. p7'uni, Lin. 



b. Thorax without lateral tubercles. 



Black, dull, elytra more shiny ; antennae (except club) 

 rust-brown, club long. Eostrum as long as head ; thorax 

 constricted in front, rather flat, very closely punctured, 

 with three more or less distinct depressions (two on disc 

 and one in middle of base) ; elytra with deep punctured 



M 2 



