704 FAMILY XXXVI]. — ELATERID^. 



desei'ibcd it iiiicler llic name of I'Jkok mis ohll<juus. The males are 

 rare, but tliree of the 21 specimens taken being of tliat sex. 



ITT. 8Th:Tii()N Tjee. 186(). (Gr., "Invast.") 



]\Te(liiim-sized cylinclrieal sjx'cies, having the head convex, deeply 

 inserted in thorax ; antenna* reaching base of elytra, their grooves 

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

 or less prohmged at apex. 



1329 (4029). Stethon pectorosu.s Lee., I'roe. Phil. Aead. Nat. Sei., ISOH, 



3SG. 

 (lyliiidrical, robust, slisjlitly narrower l)eliiiKl the middle. Unironii hrowu 

 oi- i)ice(»us, snbo|)aqne. Antenna; flattened, first joint stent, as lonu; as tlie 

 next tlu'ee; joints 4 to 10 siradnally very little shorter. Head coarsely and 

 densely pnnetnred. Thorax sli.iilitly longer than wide, sides cnrved in 

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

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

 intervals convex, densely and roughly imnctured. Hind tarsi with tiie 

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



Posey amT Crawford counties; rare. June 4-Jnly 1. Occurs 

 beneath bai'k of hickory. Known from Oliio, Tllinois and ^Missouri. 



Encunnis anicricana J-Torn, oblong, piceous-black, antennae and 

 legs brownish, is known from ICentucky and Ohio. 



IV. Deltometopi'S Bonv. 1871. (Gr., "triangle + foreliead.") 



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

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

 three. One of the two species lias been taT\en in the State, wliile the 

 other doubtless occurs. 



1330 (4030). Deltometopits amcenicoknis Say. Trans. Amer. Phil. Soc, 



VI, 1S30, 189; ibid. 11, 62S. 

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

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

 brown. Antennae 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 3-4.5 mm. 



Throughout tlie State; scarce. June 5-July 25. Beaten from 

 vegetation; moi'e fi"(>(|uently in da7np localities. 



[). )-ii/ij>(s .Mclsh.. bi'own or |)ic('oiis. anfenna' h)ngef Hian half 

 the body, male, filiform in l)otli sexes, length ;5.5-5.5 nnu., is re- 

 corded from Cafiada and Ohio. 



