944 FA:\rrLY l. — sfABATi.iaD^io. 



1780 (5C1C). Trox sl'ijeeosus I\ab., Syst. Ent., 1798, 31. 



Oblong, robust. Dull grayish-brown, elytra mottlea with piceuus, souii,'- 

 times almost black and shining. Thorax with sides rounded, the notch in 

 front of hind angles broa<l and shallow, the basal tubercles as in monaohufi. 

 but much less elevated and therefoi-c less distinct, the Y-shaped ones form 

 ing the median groove almost obsolete except at middle. Elytral tubercles 

 feeble or obsolete, with very small tufts of liairs Ijetween them. In those 

 sjieeimens in which the elylral tubercles ;ind surface coating are wholly 

 absent, the elytra are marked with i-ows of lar;,'e rounded or subriuadrate 

 punctures, irnd aiijiear black and shining', l.eiiiitli VJ. \~t mm. 



Throughout the State; frequent, ;\ra\- HH-September 6. Often 

 attracted by electric Jights of the cities. 



Trox p}inrlahis Gerin,, leno-th 12-17 mm., is a southern species 

 which is recorded from near Cincinnati. 



1781 (fiGlS). Tkox TfBERCl'LATfs DeCJeer, .Mem. Ins.. IV, 1778, .318, 



Oblong, slightly broader behind. Black or piceous black. Head usually 

 with four small tufts of hairs in a transverse row. Phorax twice as wide 

 as long, sides feebly rounded, basal margin sinuate; disli with a wide and 

 deep median groove, bordered each side by an entire ridge, rarely inter- 

 rupted at middle by a transverse elevation. Elytra with rows of rather 

 distinct, feebly elevated tubercles, covered with brownish, suberect sefce: 

 intervals with much smaller tubercles, each of which, in perfectly clean 

 specimens, is seen to be surrounded by three or four minute granules set in 

 large shallow punctures or depressions. Fmnt tibiie with one small mar- 

 ginal tooth and above it subserrate. Length fi-10 mm. 



Lake, Putnam, Vigo and Posey counties; scarce. April 30- 

 June 9. This and the next three species are of medium size and 

 have the margins of thorax ciliate with short flattened hairs. The 

 scutellum in it and all the remaining species is oval instead of 

 spear-shaped. 



1782 (."i(i21i. Trox erix.\(i:is Lee.. I'rcu-. I'hil. .Vend. Xat. Sei.. VII, 1'^,J4. 



212. 



Oblong-oval, shorter than tnbercnhiiiis. Dull black, shining when clean. 

 Clypeus more distinctly angulate at middle, the front with two small tufts 

 of hairs. Thorax as in tuhcicuUit iih. the median suleus more shallow and 

 often feebly interrupted at middle, Elytral tubercles in first and third 

 rows more or less connected on basal half, the others rounded, clothed with 

 short, erect Wad; hairs; Intervals with smaller tuliercles and small gran- 

 ules as in iiiJinciiJatiix. Ilind fenKirn without spinules en hind margin. 

 Length 6-7 mm. 



Putnam County; raiv. August 12, Taken from the skin of a 

 dead sfiuirivl, Probabh- oceui's throughout the southern half of 

 the State. 



