44 DESCRIPTIONS OF NEW SPECIES. 



longitudinally impressed, and the penultimate is deeply and 

 broadly emarginate. 



151. Li. concolor. - Nigrum nitidum, capite parce, thorace profunde 

 punctatis, hoc vitta dorsali Isevi, elytris parce subtiliter punctatis, an- 

 tennis crassiusculis obscure ferrugineis, pedibus flavo-testaceis. Long. 

 28 -31. 



Western States, and north Shore of Lake Superior. Nearly 

 resembles L. pedale, but differs by the thorax being more strongly 

 punctured, and the general form of body more slender and more 

 convex. The sexual characters are as in the last species. 



152. Li. tenue. Valde elongatum cylindricum nigrum, capite parce 

 punctato, thorace latitudine sesqui longiore, parce fortiter punctato, vitta 

 dorsali laevi ; elytris parce punctatis, abdomine subtilissime punctato, 

 antennis crassiusculis rufo-piceis, pedibus ferrugineis. Long. *22. 



One female, New York. Much smaller and more slender than 

 L. concolor, with the antennae comparatively stouter and the 

 thorax longer. 



153. L. brt- v ipenne. Nigro-piceum nitidum, capite punctis paucis 

 impresso, medio laevi, thorace latitudine longiore, utrinque parce grosse 

 punctato, vitta lata dorsali laevi, elytris thorace fere sesqui brevioribus, 

 convexis fortiter haud dense punctatis, castaneo-tinctis, abdomine sub- 

 tiliter punctato, antennis piceis crassis, pedibus piceo-rufis. Long. -32. 



Illinois ; Mr. Willcox. A very distinct species ; the antennae 

 are as stout as in L. puncticolle. 



154. Li. californiciim. Depressiusculum, nigrum nitidum, capite 

 punctis paucis versus latera notato, thorace latitudine longiore, versus 

 latera parce subtiliter punctato, vitta dorsali laevi seriebus 12 15 punc- 

 tatis definita, elytris subtiliter fere seriatim punctatis, abdomine punc- 

 tulato, segmentis postice testaceo-marginatis, antennis gracilibus pedi- 

 busque nigro-piceis. Long. -25. 



San Jose, California; only females in my collection. 



155. Li. serial tim. Nigrum pernitidum, cylindricum, capite punctis 

 paucis dispersis notato, thorace latitudine longiore ad latera parce, versus 

 medium biseriatim punctato, elytris fortiter seriatim punctatis, abdomine 

 subtiliter parce punctulato, ano rufo-testaceo, antennis gracilibus, palpis 

 pedibusque ferrugineis. Long. *23. 



One male, South Carolina; Dr. C. Zimmermann. The fourth 

 ventral segment is transversely impressed near the posterior mar- 



