452 



FAMILY XI. STAPHYLINID2E. 



871 (2655). Conosoma sceiptum Horn. Trans. Amer. Knt. Soc, VI, 1S77, 

 112. 



Broadly oval. Pale reddish-yellow, sparsely pubescent; thorax with a 

 basal spot each side of middle and elytra with sides near apex and discal 

 spot behind the middle, piceous; antennae, legs and under surface reddish- 

 yellow. Thorax slightly wider than elytra, sides regularly curved, hind 

 angles obtuse ; disk almost smooth. Elytra as long as wide, sparsely punc- 

 tulate and with a row of about six larger punctures bearing stiff black hairs 

 along the sides. Length 2-2.5 mm. 



Putnam, Monroe and Lawrence counties ; scarce. May 13-July 

 29. The color is variable, the thorax sometimes wholly piceous or 

 wholly pale, and the spots of elytra may be united and enlarged. 

 Occurs in fungi. 



Tribe IV. BOLETOBIINI. 



Elongate, slender, glabrous forms, having the head margined be- 

 neath, the color often variegated and the elytral punctures, when 

 present, in rows. Three genera represent the tribe, all of which 

 occur in the State. 



KEY TO GENERA OF BOLETOBIINI. 



a. Elytra each with three rows of punctures. 



1). Maxillary palpi usually filiform ; size larger, 4-8 mm. 



LXVI. Boletobius. 

 l)l>. Maxillary palpi awl-shaped ; size smaller, not over 4.5 mm. 



LXVII. Mycetoporus. 



act. Elytra each with about seven rows of punctures ; maxillary palpi with 

 last joint conical, acute ; length 4^.5 mm. LXVIII. Bryoporus. 



LXVI. Boletobius Steph. 1832. (Gr., ' ' boleti + living in. ") 



In this genus the middle and hind tibiae are fringed at tip with 

 unequal and rather coarse spinules. The thorax is punctured on 

 the margins with disk smooth ; rows of elytral punctures arranged 

 one near suture, one on disk arc! one near margin. 



KEY TO INDIANA SPECIES OF BOLETOBIUS. 



a. Maxillary palpi elongate, slender, glabrous. 



1). Head oval or moderately elongate, never widest at base. 

 c. Abdomen of one color. 

 a. Joints 5-10 of antennas distinctly wider than long. 



6. Elytra uniform black or piceous. niger. 

 ee. Elytra black, the apex and broad dorsal stripe dull yellow. 



AXILLARIS. 



del. Joints 5-10 of antennas distinctly longer than wide ; elytra witb 

 black spots. 



f. Thorax in part piceous or black ; head oval. 



