470 M. JACOBY 



than the third, basal joint curved, thorax twice as broad as long 

 the sides feebly rounded, gradually narrowed anteriorly, the 

 angles distinct but not produced, the surface evenly, very finely 

 and closely punctured, a narrow space near all the margins 

 impunctate or nearly so, scutellum impunctate; elytra broad, 

 convex, with a short but deep depression below the base, stron- 

 gly and deeply punctate-striate at the basal portion, the punc- 

 tures extending to the basal margin but getting much finer po- 

 steriorly and nearly obsolete at the apex, underside and legs 

 more or less fulvous, prosternum subquadrate, rather convex, 

 entirely impunctate, femora unarmed. 



Isle Goodenough, January. 



Of this species which seems more nearly allied lo R. aruensis, 

 Baly or R. tibialis Baly, only female specimens seem to have 

 been obtained, the insect seems to be distinguished by the 

 transverse shape of the thorax and the uniformly fine and even 

 punctuation of the latter part, also by the convex and smooth 

 prosternum. R. amplicollis Blackb. is a much larger insect of 

 more oblong shape and has a differently sculptured tiiorax. 



2. R-lxypai'i<ia i^apuana, sp. n. 



Fulvous, opaque, thorax opaque, microscopically punctured, less 

 than twice as broad as long, elytra strongly punctate-striate, 

 the punctures very closely placed, distinct to the apex, femora 

 unarmed. 



Length 6 millim. 



Head very minutely punctured, only visible under a strong 

 lens, opaque, clypeus much broader than long, separated by a 

 punctured groove from the face, more strongly punctured than 

 the latter, its apex semicircularly emarginate, antennae fulvous, 

 the second joint one half shorter than the third, thorax scar- 

 cely twice as broad as long and but very slightly narrowed 

 anteriorly, the sides rather evenly rounded, the anterior angles 

 produced into a small tooth, the surface opaque, minutely and 

 closely punctured when seen under a very strong lens, scutel- 



