XANTHOLINUS. 273 



fusely punctured, sliiny, with the engraved lines on tlie 

 under-side running from the angles of tlie mouth continuing 

 separate to the neck ; thorax more shiny, with extremely 

 fine, scattered punctuation ; elytra also rather diffusely but 

 more distinctly punctured. L. 3 1. Not uncommon. 



X. atratus, Heer, 



II, Head witli scattered, fine punctuation. 



1, Antennae distinctly thickened toward apex, 

 second joint somewhat longer than third. 



Black, shiny ; elytra and legs red-brown ; antennae dark 

 red-yellow. Head almost without furrow^s behind bases of 

 antennae, somewhat dilated behind, with at most one 

 lateral impression ; thorax scarcely narrowed toward base, 

 with dorsal rows composed of about eight punctures ; 

 elytra diffusely punctured, somewhat in rows at sides. 

 L. 3 1 1. Eare. X. glaber, Nordm. 



2, Antennae threadlike, second joint equal to third. 



A A. Thorax dark brown with bronze reflection, 

 with the base lighter. 



Head and upper-side of abdomen dark pitch-brown ; 

 elytra, antennae and legs red-brown ; scutellum dark red- 

 brown. Thorax with dorsal rows composed of about ten 

 regularly placed, fine punctures ; elytra almost shorter than 

 thorax, diffusely, rather strongly and deeply punctured. 

 L. 3f 1. Eare. X. distans, Kr. 



-Z? H, Thorax red-brown, with base blackish- 

 brown. 



Eed-brow^n ; elytra yellow-brown ; head and upper-side 

 of abdomen Ijlack-brown. Thorax with dorsal row^s rather 

 irregular, composed of twelve or more fine punctures; 

 elytra moderately diffusely, rather strongly punctured, 

 slightly longer than in X. distans. L. 4 1. Not very com- 

 mon. X. tricolor. Fab. 

 C C. Thorax bronze-black. 



a a. Elytra shining bronze-black. 



Head and abdomen bronze-black ; antennae red-brown, 

 with first joint pitch-black ; legs pitch-l)rown. Head 

 parallel-sided ; thorax with dorsal rows composed of about 

 ten, not very fine punctures ; punctuation of elytra closer 



T 



