Coleopterous Sulfiunilj Dynasfiiitc. 173 



half of the suture, becoiuing united with the median patelies. 

 The sutural stripe may become dilated along the posterior 

 marjjin and the eoncurrent enlargement of the mediau 

 patches ultimately rcduees the black parts to very narrow 

 limits. 



The sexual differences are very marked. The male is 

 much more hairy than the female and the latter has the 

 elytra much more strongly punctured and vei'y abruptly 

 angulated behind the middle of the outer margin. 



Cijclocephala riifovaria, sp. n. (PI. IV. fig. 14.) 



Nigra, prothoracis plagis tribus (cxternis irregularibus, media 

 lincata), scutello, elytrorum fascia mediana angulata maculaquo 

 tiibapicali communi late V-formi fulvis vel rufis ; sat brevitcr 

 ovata, cly])co lato, truncate, transverse rugoso, f rente prothorace- 

 que irregulariter baud dense punctatis ; scntello paullo punctate ; 

 elytris irregulariter sed distincte punctatis ; pygidio subtiliter 

 parce punctate, late rufo-seteso : 

 d , tarsis anticis crassatis, ungue majori minute fisso, mandibulis 



extus productis : 

 2 , elytrerum lateribus post medium acute angulatis. 



Long. 17-] 9 mm. ; lat. max. 9-10 mm. 



Hah. Ecuador {Buckley) ; Peru. 



This also is closely related to C. C07ispicua, Sharp, and, 

 like it, smooth and shining, but the abdomen, with the 

 pygidium, is black and the pattern a little different. There 

 is a black spot at each lateral margin of the pronotnm and 

 the two median black lines extenrl from the front to the 

 hind margin, where, as well as at the middle, each gives off 

 an external branch. There is no posterior red sutural stripe 

 upon the elytra. In the female the elytra are very sharply 

 toothed behind the middle of the outer edge, mucb more so 

 than in C. conspicua or C. gi-egaria. 



Cyclocephala carbonaria, sp. n. 



Nigra, nitida, glabra, capite magne, clypee fere semicirculari, antice 

 impunctate, postice cum fronts et pronoto parce sed distincte 

 punctatis ; hoc lato, lateribus late marginatis, basi immarginato ; 

 scutello minute punctate ; elytris parallelis, grosse punctatis, 

 punctis plerumque in seriebus ordinatis, in lateribus et apicibus 

 minoribus et irregularibus ; pygidio modice punctate, apice fere 

 Isevi : 

 6 , pedibus anticis incrassatis, ungue majori valde incurvato, apice 

 minute fisso ; tibiae dente supero recte truncate. 



Long. 19-5-22-5 mm. ; lat. max. 11-12 mm. 



