March, 1S96.] WiCKHAM, CoLEOPTERA OF N. E. AMERICA. 43 



blackish-brown, the first joint of the former ferruginous. Elytra with 

 a common reddish sutural spot near the tip ; striae extremely finely 

 punctured, intervals flattened, the third with one large puncture, 

 slightly in advance of the middle, near the second stria. Prothorax 

 subquadrate. Length 6-7 mm. := .24.28 in. 

 Habitat : Illinois, Florida, Texas. 



L. agilis Dej. — Black, shining, iridescent, prothorax subquadrate, 

 narrower anteriorly, the base punctured at middle, hind angles rounded 

 at tip. Legs piceous or ferruginous, antennae ferruginous at base be- 

 coming darker toward the tip. Elytra with strongly punctured stri?e. 

 Length 5-6 mm. = .20-. 24 in. 



Habitat : District of Columbia, Arkansas, Pennsylvania, south to 

 Florida. 



L. minor Chaud. — Black, shining, thorax moderately rounded at 

 sides, base nearly smooth, the hind angles obtuse with the extreme tip 

 rounded. Elytral striae finely punctured, interstices moderately convex. 

 Antennae dark, except the three basal joints which are reddish. Legs 

 reddish or with femora piceous. Length 9-10 mm. r= .36-. 40 in. 



Habitat : Louisiana, District of Columbia, Arkansas, Indiana, Illi- 

 nois, Missouri. 



L. erraticus Dej. — Black, shining, iridescent, prothorax sub- 

 quadrate, the hind angles not rounded. Elytra striate, striae with, obso- 

 lete punctures. Legs reddish or brownish, femora ordinarily darker. 

 Antennae dark, first two joints reddish. Length 9.5 mm. = .38 in. 



Habitat : Illinois, Florida, Louisiana. 

 Diplochila Brulle. 



Flattened insects of rather broad form and smooth surface. The 

 elytra have the eighth and ninth striae very close together, the third in- 

 terspace has a large puncture near the middle ; the elytral margin is not 

 interrupted at posterior third as in the Pterostichini. Supra-orbital 

 setigerous punctures, two. The species are few in number and may be 

 distinguished by these characters : 



Synopsis of Species. 



Thorax with hind angles moderately well defined. 



Seventh stria of elytra feeble, not approaching the sixth in aistinctness. 



Smaller ( 13-15 mm.) laticollis. 



Larger (18-20 mm.) van major. 



Seventh stria of the elytra about as distinct as the sixth. Thorax less narrowed 



in front, more so at base impressicollis. 



Thorax with hind angles obtusely rounded. Smaller, elytral strire finer, seventh 

 almost obliterated obtusa. 



