Descriptions of New Scolytidse. 225 



The single example has the limbs broken ; it is a 

 rather distinct form, with the elytral characters of the 

 species of EichhofF's second division, though the 

 rounded apex of the prothorax would place it in his 

 third division. 



Xylehorus dolosus, sp. n. 



Fem. Subelongata, cylindrica, nitida, castanea, parce pilosa • 

 prothorace oblongo, apice fortiter rotundato ; dorso post medium 

 sat distincte punctate, linea media lasvi ; elytris lineato-punctatis, 

 interstitiis planis uniseriatim punctatis, 1*^, S'^post medium seriato- 

 tuberculatis ; declivitate obliqua, nitida, tenuiter punctata, in linea 

 interstitii 1*^ utrinque sat valide bituberculata, infra marginata, ad 

 apicem medium subemarginata. Long 2'4 mm. 



Female. Subelongata, cylindrical, shining, castaneous-brown, 

 with very scanty, rather long pubescence. Front subimpressed on 

 either side, with an indistinct median longitudinal elevation, sub- 

 rugosely punctate and pilose ; eyes large, broad oval, feebly 

 emarginate ; antenna3 testaceous-yellow. Prothorax oblong, 

 strongly rounded at the apex, the sides very gently curved from 

 before the middle to the broadly rounded hind-angles, base sub- 

 truncate ; surface very convex before the middle, cylindrical and 

 slightly' flattened posteriorly, the junction not marked by any 

 evident nodus, the anterior half rather finely and closely asperate, 

 the posterior half shining, moderately closely and distinctly punc- 

 tured, the punctures absent over the median line and a small spot 

 on either side, and coarser at the lateral margins, pubescence scan tj-, 

 marginal, erect. Scutellum rounded oblong, infuscate, shining, sub- 

 impressed. Elytra wider than the prothorax at its extreme base, 

 and less than a half longer, truncate at base, with rectangular 

 shoulders, subparallel-sided and slightly narrowed towards the apex, 

 the hind-margins separately rounded, as in many species of Ptero- 

 cjjclon, forming a very shallow emargination at the suture ; surface 

 subcylindrical at the base, very obliquely declivous from the middle 

 to the apex, moderately strongly lineato-punctate, the interstices 

 flat, remotely and more finely punctured ; declivity somewhat 

 flattened behind, shining, indistinctly punctured, rather sharply 

 margined below, 1st interstice with about six, 3rd with about five 

 tubercles, beginning near the middle of the elytra, and becoming 

 strongly posteriorly, the apical pairs of the 1st interstices forming 

 four well-marked tubercles on the declivous area, outer interstices 

 finely tuberculate towards the extremity. Underside concolorous, 

 legs testaceous. 



Hah. Borneo, Sarawak (Wallace). 



TRANS. ENT. SOC. LOKD. 189G. PART 11. (jUNE.) 15 



