THE HAIRY FUNGUS BEETLES. 585 



nearly to suture; another broader, behind the middle, and usually a smaller 

 one on each side, dull yellow: these sometimes continent so as to make the 

 larger portion of the surface yellow. Thorax one-half wider than long, 

 sides strongly curved, disk sparsely, coarsely and equally punctured. Ely- 

 tral stria 1 with deep, coarse punctures. Length -44.5 mm. 



Posey County; rare. April 0. Readily known by its elongate 

 form, parallel sides and evenly punctured thorax. 



llir (3397). MYCETOPHAGTS PLI HUT xcTATrs Lee.. Proc. Phil. Arad. Nat. 



Sri.. VTII. isr.r,, 13. 



Elongate, narrow, parallel. I'iceous-black : elytra with numerous small 

 reddish-yellow spots, often more or less confluent into oblique bands and 

 sometimes covering the greater part of the surface ; under surface, legs and 

 basal half of antenna? pale, the last live joints of the latter dusky and 

 slightly larger. Thorax distinctly narrowed at base, the margin finely ser- 

 rate. Elytral struo finely punctured, indistinctly so at tip. Length 3.5- 

 4 mm. 



Vigo County; scarce. October 21. Occurs in fungi, especially 

 that growing on hickory logs and stumps. 



mr> (3400). MYCETOPIIAGVS OBSOLETUS Melsh.. Proc. Phil. Acad. Nat. Sci., 



II, 1X44, 113. 



Oval, rather strongly convex. Piceous black; legs and antenme paler; 

 elytra each with two irregular oblique reddish-yellow stripes, one extending 

 from humerus nearly to suture, the other behind the middle; an oval sub- 

 marginal spot between the two and another at apex. Thorax less than 

 twice as wide as long, widest at base, hind angles obtuse, disk coarsely and 

 evenly punctate. Elytra with impressed, entire rows, of coarse deep punc- 

 tures. Length 4.5 mm. 



Kcsciusko, Vigo, Dubois and Pcsey counties; rare. April 13- 

 P-torer 21. Taken from fungi on hickory stumps and by sifting 

 debris. 



II. LIT ARGUS Erichs. 1832. (Gr., "swift of foot.") 



The species belonging here are much smaller and more narrowly 

 oval than in Mycetophagns. The antenna? end in a 3-jointed club 

 and the epipleune are concave. Four species have been taken in 

 the State, while a fifth probably occurs. 



KEY TO INDIANA SPECIES OF LITARGl S. 



a. Thorax without basal impressions. 



ft. Elytra with the pubescence short and stiff, arranged in distinct rows; 

 last antenna 1 joint short, rounded. 1117. TETRASPILOTUS. 



bb. Elytra with pubescence irregularly arranged. 



c. Last antenual joint short, not as wide as preceding, broadly 

 rounded at tip; thorax convex, coarsely punctured. 



1118. DIDESMUS. 



