290 BKACHELYTRA — STENIDAE. 



More slender tlian >S'. Juno. Black, somewhat sliiny. 

 Thorax with a rather shallow furrow in middle ; fore parts 

 moderately closely and very strongly punctured. L. 2 J 1. 

 Not common. S. asphaltinus, Fab. 



h b. Maxillary palpi with first joint and at 

 most Lase of second joint yellow or brownish. 



A a. Length If — 2| lines. 



A 1. Tarsi long. 



a 1, Base of abdomen closely and dis- 

 tinctly punctured. 



More slender than S. Jiino. Black, shiny ; maxillary 

 palpi with base of second joint yellow. Forehead some- 

 what hollowed ; thorax one-third longer than broad, with a 

 distinct central furrow, abbreviated behind and Ijcfore; 

 fore parts closely and strongly punctured ; punctuation of 

 abdomen not much feebler behind, segments with a longi- 

 tudinal ridge in front. L. 2^ — 2h 1. Not uncommon. 



S. ater, Mann. 



b 1. Base of abdomen diffusely and 

 strongly punctured. 



Black; pubescence scanty, whitish. Forehead hollowed; 

 thorax oblong, with abbreviated central furrow ; punctua- 

 tion of fore parts close, that of abdomen diffuse and strong 

 at base, closer and finer at apex. L. 1§ 1. Scarce. 



S. longitarsis, Th. 

 _B 1. Tarsi short. 



a 1. Head only a little l)roader than 

 thorax. 



Broad. Black, rather shiny, pubescence scanty. Fore 

 parts rather closely, abdomen somewhat diffusely punc- 

 tured ; thorax not nnich longer than broad ; elytra rather 

 longer tluin thorax. L. Ig 1. Moderately common; 



>S'. incrussatiiH, Er. 



b _/. Head considerably broader than 

 thorax. 

 A 2, Al)domen closely punctured. 



a 2. Third joint of antennae one- 

 third longer than fourth; second 

 joint of maxillary palpi entirely 

 black. 



