474 P\M1I,Y XI. bx.'Vi-n ll.LJNMJ.r-. 



more closely punctured, the median smooth space more narrow. Elytra and 

 abdomen rather closely and coarsely punctate. Length 4^5.5 mm. 



ThroTighont the State; freqiient in the sotithern counties, much 

 less so northward. March 23-.July 14. Usually found burrowing 

 in the ground beneath stones. The smaller si;^e, paler antenna and 

 legs and more closely punctate upper surface readily distinguish 

 it from planifrons. 



^ 



1 



TjXXVII. Holotroohus Brichs. 1840. (Gr., " whole + ring or 



circle.") 



Small subcylindrical glabrous species having the 

 head narrower than thorax, antennae slender with 

 short basal joint; front tibias not spined. (Fig. 169.) 



910 (2704). HoLOTEOCHUs naivicAtiDA Lee, Proc. Phil. Acad. 

 Nat. Sci., 1866, 376. 

 Elongate, slightly depressed. Dark reddish-brown to 

 piceous; antennje and legs paler. Head and thorax very 

 J.. ,„„ „ ( finely and sparsely punctate, the latter subquadrate ; slightly 

 thus mlmlusErkbs. wider than. long; sides almost straight; hind angles rect- 

 eira."'^ X e'.^ttftei" angular. Elytra slightly wider and almost one-half longer 

 Enchson.) than thorax, finely and sparsely punctate, the sutural striae 



distinct. Abdomen very minutely punctate above, more distinctly so be- 

 neath. Length 3.5^ mm. 



Putnam and Marion counties; rare. March L!0-November 22. 

 Taken by sifting. 



Tribe III. OMALIINI. 

 Small depressed brown or piceous forms having the prosternum 

 mcmbraiions behind the coxa^ ; tarsi 5-,jointed; second ventral seg- 

 ment carinate at l)aso and the head with two simple eyes (ocelli). 

 Our species are in part treated in the following pai)ers: 



FaiivrJ, Albert. — "Les Staphylinides de I'Amei'ique du Nord— 

 Tlomalini," in Bull, de la Hoe. Linn., 3rd ser., vol. II, 187S. 

 196-255. 

 Casrij. — ''('oleopteroldgica] Notes, V," in Aim. N. Y. Acad. Sci. 

 VII, ISn:?, 398-433. 



The following genera, are probably represented in the State: 



KEY TO INDIANA GENERA OP OMALIINI. 



a. Last .ioint of maxillary palpi not awl-shaped. 

 T). Hind tarsi with joints 1-1 unequal. 



e. First joint of hind tarsi much longer than second. 

 '/. Fourth joint of maxillary palpi not longer than third, pear- 

 sbaped. LXXVIII. Geodbomicus 



