THE DARKLING BEETLES. 



1257 



2322 ( 7445). Alphitobil s diaperinus Panz., Faun. Germ., 1707. 37. 



Oblong-oval, subconvex. Black or piceous, shining. Thorax twice as 

 wideasTng, sides nearly strait: ape, deeply emarginate fro* 

 nrominent rounded, base bisinnate; surface, as well as that of head, rather 

 SSTS Punctured. Elytral strne slightly impressed, finely and 

 tuLvlv punctate: intervals feebly convex, distinctly punctate, the punc- 

 ture* nearly as large as those of the strne. Length 6.5-7 mm. 



Vigo County; scarce. March 7- April 12. Taken from barn 

 whereVrain was stored. It resembles some of the larger species ot 

 Platydema, but is easily distinguished by the less prominent eyes 

 and large punctures of elytral intervals. 



Tharsus sedUiosus Lee, elongate., depressed, reddish-brown, 

 shining, length 5 mm., is a southern form which has been recorded 

 from Cincinnati. 



XIV. Uloma Cast. 1840. (Or., '•destructive/') 

 Medium-sized, reddish-brown species, easily distinguished by 

 the ^short epipleur* and dilated and toothed front tibiae. Three spe- 

 cies have been taken, while a fourth may occur. 



KEY. TO INDIANA SPECIES OF ULOMA. 



«. Lower edge of front femora grooved for their full length, 

 o Last joint of antennas rounded at tip. 



c. Elytral intervals very minutely and sparsely punctured; middle 

 plate of mentum elongate-oval. 2323. impressa. 



cc Elytral intervals densely punctulate; middle plate of mentum trans- 



" , 2325. PTTNCTUIATA. 



versely oval. 



Vb Last joint of antennae oblique, pointed : middle plate of mentum trans- 



UU. Ltax>i 2324. IMBERBIS. 



ad. Lower edge of front femora not grooved but with a rather broadpit 

 near the tip. 



*2323 (7481). Uloma impeessa Melsh., Proc. Phil. Acad. Nat. Sci.. Ill, 

 1846, 64. 



Oblong subparallel. Chestnut-brown, shining ; legs reddish-brown. Front 

 of head with a deep curved impression. Thorax one-third wider than long 

 as wide at base as elytra: sides feebly curved, hind angles obtuse: surface 

 finely and sparsely punctate, the males with a broad. ^ ™sxon e- 

 hind the middle of the front margin. Elytra almost parallel, rathei deep y 

 striate, the stria, with punctures on the sides : intervals subconvex, mmutelj 

 punctulate. Length 11-12 mm. 



Throughout the State: frequent. February 14-October 12. 

 Occurs especially beneath the bark of oak and beech. 

 *2324 (74S2). Uloma imberbis Lec., New Sp. N. A. Col.. I. 1S66. 123. 



Elongate-oval, subconvex. Piceous or dark reddish-brown, shining. Head 

 as in impress*. Thorax one-half wider than long, slightly narrowed in 



