4U (68) Mr. G. R. Crotch's Revision of 



Mycotretus tricolor, sp. n. 



Oblongo-ovatus, sat latus, subdepressxis, Ifete rufo-testaceus, 

 elytris nigris, fascia subapicali albida; capite thoraceqiie punctu- 

 latis, elytris teniie punctato-striatis, interstitiis subtilissime pimc- 

 tiilatis, metasterno lateribus punctulatis. L. 4| lin. Ega (Bates). 



The aatennse are rather long, the chib jointed and loose, almost 

 dentate within. 



Mycotretus dimidiatus, sp. n. 



Ovatus, niger, nitidus, clypeo, labro, macula xiti'inqne prope 

 oculos, antennis basi, tarsis, abdomineque oclu-aceis ; prosterno 

 pectoreque obsolete rnfo-signatis ; elytris dimidio basali late flavo, 

 punctato-striatis, interstitiis subtiliter punctulatis. L. 4 lin. 



Ega (Bates). 



This is less depressed than the preceding group of species. 

 Metasternum with the sides sparingly punctate. 



Mycotretus rhodosomns. 



Mycotretus rhodosonnis, Lac. Erot. IGG. 

 Brazil. 



Depressed, opaque, antennal club 3-jointed, posterior tibise 

 conspicuously incurved. 



Mycotretus flavomarginatus. 



Mycotretus flavomarginatus, Lac. Erot. 157. 

 Bio Janeiro. 



Interstices very broad, hardly punctulate; posterior <;oxal lines 

 absent. Allied to M. rhodosomns and with similar tibite. 



Mycotretus dorsofasciatus. 



Mycotretus dorsofasciatus, Lac. Erot. 173. 

 Brazil. 



Elytra with an opaline lustre, interstices finely transversely 

 wrinkled ; body beneath very finely and sparingly pubescent. 



Mycotretus opaleseens, sp. n. 



M. dorsofasciato proxiraus, capite postice nigricante, thorace 

 Y)unctis 4 discoidalibus (2 internis majoribus) elytris fascia basali 

 [puncto subhumerali testaceo (alteraque pone medium) postice 

 indefinita] nigris. L. 2Hin. 



Santarem, Ega, S. Paulo (Bates). 



Finely pubescent beneath. This is much more opalescent than 

 M. dorsofasciatus; the basal fascia is sometimes reduced to a black 

 lunule enclosing the shouldei*, and the subapical one to a narrow 

 line. Accords with M. pelliciens, Kirsch, in coll. 



