Phytophaga Malayana. 187 



deeply punctured posteriorly, subsulcate ; the interspaces obso- 

 letely convex. 



li. Aruensis resembles R. femorala (^atite, p. 17i^), but may be at 

 once known by its much more finely punctured thorax. 



35. R/ii/parUa confusa, n. sp. 



Oblonga, convexa, piceo-fulva, nitida ; thorace hie illic sub- 

 fortiter punctato ; elytris thorace paullo latioribus, subparal- 

 lelis, infra basin paullo excavatis ; striis ante medium sat 

 fortiter punctatis, modice sulcatis, interspatiis convexiuscnlis ; 

 striis pone medium minus fortiter punctatis, iis disci centralis 

 apicem versus confusis, interspatiis planis, punctis piceis ; 

 femoribus muticis. 

 Long. 3 — 3| lin. 

 Hab. Ceram, Gilolo, Eatchian. 



Front slightly swollen, minutely but distinctly punctured, its 

 lower end impressed with a deep longitudinal groove ; epistome 

 distinctly separated from the front, longer than broad, penta- 

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

 margin broadly concave-emarginate, angles of the notch obtuse, 

 moderately produced ; surface deeply punctured ; jaws black. 

 Thorax rather more than twice as broad as long ; sides rounded 

 and converging from base to apex, all the angles tuberculate ; 

 surface slightly unequal in some specimens, irregularly but not 

 closely punctured. Scutellum longer than broad, semiovate. 

 Elytra rather broader than the thorax, broadly oblong, subparallel, 

 distinctly but slightly excavated below the basilar space ; striae 

 piceo-punctate, strongly impressed and subsulcate in front, less 

 deeply punctured posteriorly ; on the middle disk, near its apex, 

 the striae become confused and irregular ; interspaces on the an- 

 terior two-thirds of the surface slightly convex, plane on the 

 hinder third. 



The irregular punctuation of the apex of the elytra in this 

 species will distinguish it from its allies. 



36. Rhyparida inslahilis, n. sp. 



Anguste oblonga, subovalis, convexa, pallide rufo-picea, nitida ; 

 elytris, basi excepta, nigro-piceis ; thorace subcrebre sed 

 minus irregulariter punctato, utrinque unifoveolato ; elytris 

 infra basin distincte excavatis ; striis distinctis, ante medium 

 fortiter punctatis, sulcatis^ interspatiis convexiusculis ; pone 



