LATHRIDIUS. 493 



Ji J?. Anterior angles of thorax rounded, scarcely 



produced. 



Oblong. Eed-brown. Thorax oblong, flat, punctured in 



wrinkles, with side margin bisinuate, scarcely narrowed 



behind ; elytra convex, oval, with small stiff bristles and 



punctured striae, punctures large. L. 1 1. Eare. 



L. angulatus, Mann. 



JI, Eaised lines on thorax feeble and often visible 

 toward apex only. 



1, Body brown, dull ; anterior coxae almost con- 

 tiguous. 



Oblong, narrow. Brown, dull ; antennae and legs yel- 

 low-brown. Thorax much longer than broad, narrowed in 

 middle, raised lines disappearing before transverse impres- 

 sion at base ; elytra with punctured striae, interstices nar- 

 row, alternate ones raised. L. | 1. Not very common. 



L. carinattis, Gyll. 



2, Body light yellow-brown, rather shiny ; anterior 

 coxae placed apart. 



Narrower than L. carinatus, especially the thorax. Light 

 yellow-brown, rather shiny. Thorax oblong, strongly con- 

 stricted somewhat behind middle, front of disc with an 

 abbreviated, feeble longitvidinal furrow and on each side of 

 this a very feeble raised line, elytra often rather darker, 

 with deep punctured striae, alternate interstices somewhat 

 raised. L. f 1. Eare. L. constrictus, Gyll. 



&. Disc of thorax without raised lines. 



1, Thorax oblong. 



1. Elytra not or scarcely darker than head and 

 thorax. 



Eatlier flat, elongate. Eed-yellow, rather shiny. Thorax 

 oblong heart-shaped, sides memljranaceous, base with trans- 

 verse impression; elytra oblong oval, shoulders rounded, 

 with deep notched striae, outer interstices a little nar- 

 rower than inner ones and raised ridgelike. L. -f 1. 

 Moderately common. L. clongatus, Curt. 



2. Elytra distinctly darker than head and thorax. 



Elongate. Eed-yellow, shiny ; elytra dark brown. 

 Thorax oblong, constricted toward middle, with a feeble 

 central furrow in front and a transverse impression behind; 



