900 FAMILY XLVII. CIOID/E. 



rather distinctly and evenly curved, feebly convergent from base to apex, 

 the margins very fine; surface minutely and rather sparsely punctured. 

 Elytra less than one-half longer than wide, narrowly rounded at apex, very 

 feebly rugulose, minutely and sparsely punctate. Length 1.5-2 mm. 



Marion and Dubois counties; rare. April 4- October 31. 



IV. ENNEARTHRON Meilie. 1S47. (Gr., " nine + joints.") 



Small, smooth, cylindrical species having the antennas slender, 

 with feeble club. The thorax of the male is armed at apex with 

 two small, horn-like processes. Two species occur in Indiana. 



1709 (5404). ENNEARTHRON THORACICOKNE Ziegl., Proc. Phil. Acad. Nat. 



Sci., II, 1845, 270. 



Oblong-cylindrical, robust. Dark reddish-brown, rather strongly shin- 

 ing ; mouth parts, antennae, tibiae and tarsi paler. Front of clypeus in male 

 elevated, slightly recurved and broadly emarginate. Thorax of male con- 

 vex, sides rounded, surface finely and sparsely punctured; distinctly im- 

 pressed behind the processes, which are rather short and divergent ; of 

 female less convex, more broadly rounded in front, slightly prolonged over 

 the head. Elytra very finely punctured and rugulose. Length 1.5 mm. 



Steuben, Marion, Jackson, Crawford and Posey counties ; fre- 

 quent. April 6 September 3. Occurs beneath moss and bark. 



1710 ( ). ENNEARTHRON OBLONGUS sp. nov. 



More slender and parallel than the preceding. Piceous black, strongly 

 shining. Thorax of male feebly impressed behind the processes, the latter 

 longer and less divergent than in thoracicorne; thorax of female more 

 strongly extended over the head; disk in both sexes finely alutaceous and 

 more evenly and coarsely punctate than in thoracicorne. Elytra more 

 coarsely and rugosely punctured. Length 1-1.5 mm. 



Marion County; frequent locally. October 31-December 8. 

 Taken in numbers from beneath dry, leathery fungi on dead beech 

 trees. 



V. CERACIS Meilie. 1848. ('Gr.. "horn + worm. ") 



The members of this genus are very similar to those of Enncar- 

 tJn-on, but the antenna? are only 8- jointed, one of the small joints 

 near the middle being absent. One of the two species occurs in the 

 State. 



1711 (540G). CEUACIS SALLKI Meilie, Ann. Entom. France, VI. :!77. 

 Oblong-cylindrical. Dull reddish-yellow: basal halt' of elytra blackish. 



Thorax slightly wider than long, sides broadly curved from base to the 

 obtuse apical angles; disk rather finely and sparsely punctured and, in the 

 male, armed with a moderately long process which is deeply sinuate at 

 apex. Elytra as wide at base as thorax, about one-half longer than wide, 

 finely, sparsely and irregularly punctured. Length 1.3 mm. 



