264 Mr. G. J. Arrow on Lamellicorn Beetles 



specimens in our collection which do not differ in other 

 respects. 



Five species of Dynastinre from Woodlark Island were 

 described by Montrouzier under the name of Scarahieus (Ann. 

 Soc. Agvic. Lyon, (2) vii. 1855, p. 20), and four of them 

 were omitted from Geniminger and Harold's Catalogue, no 

 doubt owing to the compiler's inability to locate them. Two 

 of them [S. woodlarkianus and excavatus) seem to me to 

 belong to my genus Papiiana, and the first I believe to be 

 the insect I called Pajyuatia semistriata. Herr Prell is 

 probably correct in regarding P. Icevljjennis , Arrow, as a 

 variety of the same species. 



Of the other species of Montrouzier, Scaraha'us machayi 

 is undoubtedly Xylotrujies g'ldeon, L., S. triangularis is a 

 Diptlicus, and S. duhius is doubtful. The descri|)tiou 

 suggests a female Trlchogoniphus (although said to be taken 

 from a male), but the four-toothed front tibiae, coupled with 

 the size, agree with no known genus except Oryctes. 



Plerr Prell has treated as a subspecies of Papuana lans- 

 bcrgei, Schauf., an insect from Java which seems to me to be 

 a perfectly distinct species. Examples of both forms from 

 the same sources (Fruhstorfer's captures) as those before Prell 

 are in the British Museum. The Javan P. badia, in addition 

 to its different colour, is smaller and much less elongate than 

 P. lansbergei, the pygidium is less closely punctured, and, in 

 the male, the slight depression at the front of the pronotum 

 is limited behind by a defiuite ridge of which there is no 

 trace in the other species. 



These two forms with simplified armature are the only 

 known Jtlalayan species, all the others inhabiting islands 

 1 art her to the east. The following is another new species 

 fioni New Guinea: — 



Papuana angusta, sp. n. 



Ki^i!:ra, nitida, elongata, supra lajvissima, parum convexa, clj-pei 

 lateribus fere rectis, convergentibiis, apice profunde eraargiuato, 

 utriiKjue acute dentato ; pronoto cum scutello hievissimo, illius 

 lateribus regulariter arcuatis, anguste marginatis, augulis anticis 

 acutis, posticis rotundatis, elytris punctato-sulcatis, punctis 

 ocellatis, apicibus irregulariter baud fortiter punctatis ; pj-gidio 

 dense subtiliter punctato, medio et apice lajvigato ; tibiis anticis 

 trideiitatis, dentc supero sat rcmoto : 

 d , capito brevitcr cornuto, coruu postice planato, apice minute 



