Pliytophaga Muhiyana. 181 



spiice, distinctly impressed vvitliin tlie liumeral callus, the latter 

 subprominent ; striae subsulcate, entire, coarsely and deeply punc- 

 tured in front, less deeply impressed behind the middle; inter- 

 spaces slightly convex, transversely rugulose below the basilar 

 space, plane near the hinder half of the suture. 



Broader and niore coarsely punctured on the elytra than R. 

 lucea ; very variable in colour. 



27. Rhyparida frontalis, r\. sp. 

 Late oblonga, convexa, piceo-nigra, nitida ; labro fronteque 

 rufo-piceis ; antennis basi fulvis ; thorace sat crebre puiictato ; 

 elytris thorace paullo latioribus, parallelis, infra basin obso- 

 lete impressis ; striis integris, fortiter punctatis, punctis pone 

 medium minus fortiter impressis, apicem versus fere obsoletis; 

 interspatiis antice convexiusculis, pone medium planis; femo- 

 ribus muiicis. 

 Long. 2^ lin. 



Hab. Nevv Guinea (Dorey). 



Head granulosa; front rufo-piceous, very minutely and re- 

 motely punctured, its lower portion impressed with the usual 

 groove ; epistome nearly black, rather longer than broad, penta- 

 gonal, its apical angle acute ; sides straight and parallel ; anterior 

 margin deeply concave-emarginate in the middle, angles of the 

 notch slightly produced, obtuse ; surface more strongly punc- 

 tured than the front ; labrum pale rufo-piceous, its anterior border 

 notched ; inner border of the eyes almost entire ; basal half of the 

 antennae pale fulvous ; jaws black. Thorax twice as broad as long; 

 sides diverging at the extreme base, thence rounded and obliquely 

 converging to the apex ; hinder angles tuberculate, anterior 

 rounded, obsolete ; surface finely punctured on the disk, more 

 strongly punctured on the sides ; middle portion of anterior 

 border obscure rufo-piceous. Scutellum obscure rufo-piceous, 

 scarcely broader at the base than long, broadly semiovate ; apex 

 obsoletely angular. Elytra rather broader than the thorax, sub- 

 parallel, very indistinctly excavated below the basilar space ; striae 

 strongly and deeply punctured on the anterior disk, distinctly 

 sulcate; on the hinder disk they gradually become more finely 

 punctured, and are nearly lost at the apex ; interspaces convex in 

 front, plane behind the middle. 



