398 



FAMILY XI. STAPHYLINIMJ. 



Southern half of State; scarce. April 22- June 2. Taken by 

 sifting or by beating low herbs. 



771 (2278). XantholInus pusillus Sachse., Stett. Ent. Zeit, 1852, 124. 

 Elongate, very slender, parallel. Head black ; abdomen and under sur- 

 face piceous ; thorax, elytra and legs reddish-brown. Head but little longer 

 than wide; coarsely and rather closely punctate on the sides above, more 

 finely and sparsely beneath. Thorax one-half longer than wide, slightly 

 narrower than head, sides almost straight; dorsal rows with about eight 

 rather fine punctures, the ones on sides with five or six. Elytra slightly 

 wider and one-fourth longer than thorax, each with two discal rows of 

 rather fine punctures and numerous confused ones near the suture. Abdo- 

 men finely and sparsely punctate. Length 4-5.5 mm. 



Putnam County; rare. April 22. 



XXXVIII. Leptolinus Kraatz. 1857. (Gr., "slender.") 



Very slender species having the third joint of maxillary palpi 

 swollen and obeonieal, the last joint very small and awl-shaped. 

 One of the two species occurs in the State. 



772 (2282). Leptolinus rubripennis Lee, Trans. Amer. Ent. Soc, VIII. 



1880, 171. 



Elongate, slender. Head, thorax and abdomen brownish-black, sub- 

 opaque: antennae, legs and elytra dull red, the latter dusky about the scu- 

 tellum. Head nearly twice as long as wide, finely and densely strigose- 

 punctate ; antennae reaching middle of thorax, the outer joints nearly twice 

 as wide as long. Thorax as long as and a little narrower than head, finely 

 and densely punctate, with a narrow, smooth median line. Elytra slightly 

 wider and more sparsely and finely punctured than thorax. Abdomen very 

 finely and densely punctate, wider at apex than base, the tip paler. Male 

 with last ventral acutely notched and grooved lengthwise. Length 6- 

 6.5 mm. 



Lake, Posey and Dubois counties; rare. April 19-May 28. 

 Sifted from woody debris. Easily known by the dense sculpture 

 of head and thorax. 



XXXIX. Leptacinus Erichs. 1837. (Gr., "slender.") 



Elongate slender species having the last joint of palpi awl- 

 shaped; middle coxa^ widely separated; front tarsi not dilated. Of 

 the twelve species known from North America, the following have 

 been taken or perhaps occur in Indiana : 



KEY TO INDIANA SPECIES OF LEPTACINUS. 



a. Fourth joint of maxillary palpi slender, scarcely shorter than third; 

 outer side margin of thorax acute in front of middle, not united with 

 the lower or inner line. 773. flavipes. 



