THE DARKLING BEETLES. 



1257 



-'322 (7445). Alphitobius diaperinus I'auz., Fiiun. Germ., 1797, 37. 



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

 wide as long, sides nearly straight; apex deeply emarginate, front angles 

 prominent, rounded, base bisinuate ; surface, as well as that of head, rather 

 finely and sparsely punctured. Elytral striae slightly impressed, finely and 

 shallowly punctate; Intervals feebly convex, distinctly punctate, the punc- 

 tures nearly as large as those of the striae. Length 6.5-7 mm. 



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

 where grain was stored. It resembles some of the larger species of 

 Platydema, but is easily distinguished by the less prominent eyes 

 and large punctures of elytral intervals. 



Tharsus seditiosus Lee, elongate, depressed, reddish-brown, 

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

 from Cincinnati. 



XIV Uloma Cast. 1840. (Gr., "destructive.") 



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

 the short epipleurye and dilated and toothed front tibiaj. Three spe- 

 cies have been taken, while a fourth may occur. 



KEY TO ir\-DIANA SPECIES OF ULOMA. 



a. Lower eilue of front femora grooved for their full length. 

 &. Last joint of antennse rounded at tip. 



c. Elytral intervals very minutely and sparsely punctured; middle 

 plate of mentum elongate-oval. 2323. impbessa. 



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

 versely oval. I 2325. punctuiata. 

 6&. Last .loint of antennae oblique, pointed ; middle plate of mentum trans- 

 verse. 2324. IMBEEBIS. 

 aa. Lower edge of front 'femora not grooved but with a rather broad pit 

 near the tip. mentaus. 



*2.323 (7481 ». Uloma impeessa Melsh., Proc. Phil. Acad. Nat. Sci., Ill, 

 ]S4G, 64. 



Oblong, subparallel. Chestnut-brown, shining ; legs i-eddish-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, deep impression be- 

 hind the middle of the front margin. El:\-ti-a almost parallel, rather deeply 

 striate, the striae with punctures on the sides ; intervals subconvex, minutely 

 punctulate. Length 11-12 mm. 



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

 Occurs especially beneath the bark of oak and beech. 



*2324 (7482). Uloma lmbebbis Lee., New Sp. N. A. Col., I, 1866, 123. 



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

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



