171 FVMILV M. STATH YUNTT>/T:. 



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

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



Throughout tho State; frequent in the southern counties, much 

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

 in the Around beneath stones. The smaller size, paler antennas and 

 legs and more closely punctate upper surface readily distinguish 

 it from planifrons. 



LXXVII. HOLOTROCHUS Erichs. 1840. (Gr., " whole + ring or 



circle.") 



Small subcylindrical glabrous species having the 

 head narrower than thorax, antennas slender with 

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



916 (2704). HOLOTROCRUS L^VICAUDA Lee., Proc. Phil. Acad. 



Nat. Sci., 1866, 376. 



Elongate, slightly depressed. Dark reddish-brown to 

 piceous; antennae and legs paler. Head and thorax very 

 F' 169 Holutro mie l y an d sparsely punctate, the latter subquadrate ; slightly 

 C//MS volvulus Erichs. wider than long; sides almost straight; hind angles rect- 



A Porto Rican spe- 

 cies. < 6. (After angular. Elytra slightly wider and almost one-halt longer 



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



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

 neath. Length 3.5-4 mm. 



Putnam and Marion counties; rare. March 20 November 22. 

 Taken by sifting. 



Tribe III. OMALIINI. 



Small depressed brown or piceous forms having the prosternum 

 membranous behind the coxge; tarsi 5-jointed; second ventral seg- 

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

 Our species are in part treated in the following papers: 



Fauvel, Albert. "Les Staphylinid.es de 1'Amerique du Nord 

 ITomalini." in TSull. de la Soc. Linn.. 3rd ser., vol. II, 1878, 

 106-255. 



Casey.- "Ooleopterological Notes, V," /// Ann. N. Y. Acad. Sci. 

 VII, 1893, 398-433. 



Tlie following genera are probably represented in the State: 



KEY TO INDIANA GENERA OF OMALTINI. 



ii. Last joint of maxillary palpi not awl-shaped. 

 /*. Hind tarsi with joints l^t unequal. 



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



<l. Fourth joint of maxillary palpi not longer than third, pear- 

 shaped. LXXVIII. GEODROMICUS 



