THE FRIXCiE-WIXliED FrXGUS BEETLES. 503 



fj. Body oval with the sides more curved; basal joint of Mnd 

 tarsi much louger than the next two combined. 



IV. MOLAMBA. 



re. .Vutenua' lO-jointed. the elongate third joint followed by four 

 small subequal ones (Fig. ISO, No. 9) ; presternum very short 

 in front of coxa- : body oval or oblong-oval, more convex. 



Akthbolips. 



0(1. Antennae 0-jointed (Fig. ISO. No. 4> ; thorax emarginate in front, the 



head in gieat part exposed; body very minute. V. Orthopercs. 



T. CoRYLOPHODES Matthews. ISS-'i. (Gr.. "helmet + crest.") 



Small rounded sjieoie-s having the hind angles of thorax slightly 

 prolonged; front tarsi feebly dilated in males; antenn;i? as in Fig. 

 ISO. Xo. 1, except that tlie third joint is shorter than second. 



064 (30231. CoBTLOPHOPES MARGixicoLLis Lec. Proc. Phil. Acad. Nat. Sci.. 

 A' I. 1S52. 143. 

 Rounded, strongly convex. Blackish-piteous, 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 liy sifting in spring and fall. 



II. Geoxevis Casey. 1900. 



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

 The antenna; are .shown in Fig. 1m i. Xo. 2. One has been taken in 

 the State, while two others may occur. 



KEY TO IXDIAXA SPECIES OF GROXEVUS. 



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

 paler, its margins transparent ; length .S mm. sxicncrs. 



0(7. Elyti-al punctures minute and indistinct. 



6. .\jitennal club blacJiisU ; body black, thorax piceous, with narrow 



transparent margins; length .0 mm. fuscicorxis. 



6&. Antennal club pale; body dark reddish-yellow, thorax still paler; 



length 1 mm. 965. hespeeus. 



U. sticticu.-^ Casey was described from Iowa and G. fuscicorhis 

 Casey, from Ottawa, Canada. 



"Xio ( 1. Groxevi s HESPERVs Casey. Journ. N. T. Ent. Soc. VIII. 



1900. 64. 

 IClongate-oval. convex. Reddish-yellow tinged with pic-eous. shining. 

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

 effaced liehiud the middle. Length 1 mm. 



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

 stump. Known heretofore from Iowa and Nebraska. 



