704 TAMILT XXXVII. ELATEEID^. 



described it under the name of Euciicmis obliquus. The males are 

 rare, but three of the 21 specimens taken being of that sex. 



III. Stbthon Lee. Ib66. (Gr., "breast") 



Medium-sized cylindrical species, having the head convex, deeply 

 inserted in thorax; antennte reaching base of elyti-a. their grooves 

 deep, narrow, marginal, closed behind; last ventral segment more 

 or less prolonged at apex. 



1329 (4029). Stethon pectobosus Lee, Proc. Phil. Acad. Xat. Sci., ISiJfi, 



386. 

 Cylindrical, robust, slightly narrower behind the middle. Uniform brown 

 or piceous, subopaque. Antennas flattened, first joint stout, as long as the 

 next three ; joints 4 to 10 gradually very little shorter. Head coarsely and 

 densely punctured. Thorax slightly longer than wide, sides curved in 

 front, straight and parallel behind the middle, hind angles obtuse; disk 

 strongly convex, densely and rather rugosely punctured. Elytra striate; 

 intervals convex, densely and roughly punctured. Hind tarsi with the 

 first joint as long as the next four. Length 6-9 mm. 



Posey and Crawford counties ; rare. June 4^July 1. Occurs 

 beneath bark of hickory. Known from Ohio, Illinois and ^Missouri. 



Evciicmis american-a Horn, oblong, piceous-blaek, antennse and 

 legs bro-wnish, is kno^wi from Kentucky and Ohio. 



IV. Deltometopus Bonv. 1871. (Gr., "triangle + forehead.") 



Small, slender-bodied, black species, having the elytra gradually 

 narrower to apex and first joint of hind tarsi as long as the next 

 three. One of the two species has been taken in the State, while the 

 other doubtless occurs. 



1330 (4030). Deltometopus amcexicoknis Say, Trans. Amer. Phil. Soc, 



VI, 1836, 189; ibid. II, 628. 

 Elongate, moderately convex. Piceous, feebly shining, sparsely clothed 

 with grayish pubescence; legs and two basal joints of antennse reddish- 

 brown. AntennfB not quite as long as half the body ; joints 5-10 pectinate 

 in male, serrate in female, the groove distinctly wider behind the middle. 

 Thorax a little wider than long, narrower in front; sides straight, male, 

 or widest behind the apex with sides in front curved, female ; disk convex, 

 rather densely punctate. Elytra striate, intervals slightly convex, rather 

 densely rugosely punctate. Length 3—1.5 mm. 



Throughout the State; scarce. June 5^uly 23. Beaten from 

 vegetation ; more frequently in damp localities. 



D. ntfipes Mclsh., brown or ])ieeous, antenna? longer than halt 

 the body, male, filiform in both sexes, length S.-l-.'i.o unn., is rc- 

 coi-ded from Caiiada and Ohio. 



