556 1•^\.MII.^ xix. coi.^diid.i:. 



^'III. I'vcxo.MKKis Kficlis. 1S:>'2. ((Jr.. "close (joint.*') 



Ill tliis uciius till' ('l('\('ntli joint ol' the aiileniKi' is closely united 

 to the tenth, so that the elub is solid and apparently one-jointed. 

 It is represented in the United States by the single species: 



1063 (32S6). Pycnomerus sulcicollis Lee, N. Spec. N. Amer. Col., 1863, 69. 



Elongate, subconvex. Dark reddish or chestnut-brown, shining. Tho- 

 rax slightly longer tlian wide, base ver.v little narrower than apex, disk 

 with two broad grooves at middle which do not reach tlie apex or base, 

 margin slightly reflexed, surface sparsely punctate. Elytra slightly wider 

 than thorax, the stri.'e with coarse, deeii. elongate punctures. Length 5- 

 5.0 mm. 



Putnam County; scarce. June 20. 



Tribe IV. BOTHRIDERINI. 



Somewhat ilattened, oblong (u- elongate beetles, having the an- 

 tennae short, 11-jointed, received in obliijue antennal grooves, elub 

 2-jointed ; all the cox;v widely separated ; first ventral segment elon- 

 gate; first joint of tarsi longer than either the second or third. 

 Both genera are probably represented in the State. 



KEY TO GENERA OF BOTHRIDERINI. 



(t. Head liorizontal or nearly so; front cox;ii very narrowly enclosed be- 

 hind ; outer apical angle of tibiie not prolonged. IX. Bothrideres. 

 aa. Head deflexed : front coxre very distinctly closed ; outer apical angle of 

 tibia^ prolonged. Erotylathris. 



IX. RoTiiKiDKRES Ei'ichs. 1832. (Gr.. "a small trench + neck.") 

 One of the two known s{)ecies occur.s in Tndiana. 



*1064 (.'*>2S7). Bothrideres geminatus Say, Journ. Phil. Acad. Nat. Sci., 

 V, 1820, 262; ibid. II, 323. 

 Oblong, subdepressed. Dark reddish or chestnut-brown, moderately 

 shining, si)arsely pubescent. Thorax longer than wide, narrowed behind, 

 apex feebly emarginate; sides slightly curved with a small tubercle on mid- 

 dle of margin; disk vaguely concave, coarsely and rather densely punc- 

 tured. Elytra sliglitly broader than thorax, striate, the striix; finely punc- 

 tured; intervals alternately wider witli a single row of puiictiu'es, the nar- 

 rower ones smooth. Length .3—1.5 mm. 



Southern lialT n\' State; fre(|ueut. P'ebruary 25-November 24. 

 Occurs beneath barl<. usuall\' tliai of li\iiig hickory. iiia])lc and other 

 trees. 



Erotylathris r.raratus Melsli., oblong, black, opaque, length 4-6.5 

 mm., is a southern form which has l)ecn laken at (Cincinnati. Dury 

 finds it beneath the bark of dead elm, 



