THE FRINGE-WINGED FUNGUS BEETLES. 503 



//. Body oval with the sides more curved; basal joint of hind 

 tarsi much longer than the next two combined. 



IV. MOLAMBA. 



<<-. Antenna 1 10-jointed, the elongate third joint followed by four 

 small subequal ones (Fig. 180, No. 9) ; prosternum very short 

 in front of coxae; body oval or oblong-oval, more convex. 



ARTHROLIPS. 



iid. Antenna} 9-jointed (Fig. ISO, No. 4) ; thorax emargiuate in front, the 

 head in great part exposed ; body very minute. V. ORTHOPERUS. 



I. CORYLOPHODES Matthews. 1885. (Gr., "helmet + crest.") 



Small rounded species having the hind angles of thorax slightly 

 prolonged; front tarsi feebly dilated in males; antennae as in Fig. 

 180, No. 1, except that the third joint is shorter than second. 



9G4 (3023). CORYLOPHODES MARGINICOLLIS Lee., Proc. Phil. Acad. Nat. Sci., 



VI, 1852, 143. 



Rounded, strongly convex. P>lackish-piceous, shining; legs and antenna? 

 paler. Thorax semicircular, the margin broadly transparent, and there- 

 fore appearing yellowish ; base obtusely angulated at middle. Elytra with 

 sparse, deeply impressed punctures. Length .9 mm. 



Throughout the State; frequent. April 17-October 17. On 

 leaves or fungi in summer. Taken by sifting in spring and fall. 



II. GRONEVUS Casey. 1000. 



To this genus, as defined in key, Casey ascribed five species. 

 The antenna? are shown in Fig. 180, No. 2. One has been taken in 

 the State, while two others may occur. 



KEY TO INDIANA SPECIES OF GRONEVUS. 



a. Elytral punctures strong, especially on the sides; blackish, thorax 

 paler, its margins transparent ; length .8 mm. STICTICUS. 



(/. Elytral punctures minute and indistinct. 



1>. Antenna 1 club blackish; body black, thorax piceous, with narrow- 

 transparent margins ; length .9 mm. FUSCICORNIS. 

 l>h. Antennal club pale; body dark reddish-yellow, thorax still paler; 

 length 1 mm. 965. HESPERUS. 



G. sticficufi Casey was drs'-ribcd from Iowa and G. fuxcicornis 

 Casey, from Ottawa, Canada. 



965 ( ). GRONEVUS HESPERUS Casey, Journ. N. Y. Ent. Soc., VIII, 



1900, 04. 



Elongate-oval, convex. Reddish-yellow tinged with piceous, shining. 

 Elytra more than twice as long as thorax, its punctures very fine, almost 

 effaced behind the middle. Length 1 mm. 



Monroe County; rare. June 9. Sifted from debris of beech 

 stump. Known heretofore from Iowa and Nebraska. 



