410 Mr. T. V. Wollaston on the Coleoptera of St. Helena. 



The M. conicollis was taken by the late Mr.Bewicke in 1860, 

 and subsequently in profusion by Mr. Melliss, who informs me 

 that it has attached itself mainly to the rotten branches of the 

 oak trees which have been planted at a rather high elevation, 

 and beneath which also (amongst the dead leaves) he has at 

 times found it abundantly. 



B. Funiculus submoniliformis, articulis omnibus inter se suhcequalihus. 



44. Microxylohius moyiilicortiis, n. sp. 



M. oblongo-fusiformis, seneus, nitidus, calvus ; capite parce sed ar- 

 gute puuctato, rostro breviuseulo subtereti latiiisculo confertim 

 ac profunde rugoso-punctato ; prothorace subovato, basi truncato, 

 ad latera rotundato, convexo, dense argute et sat profunde punc- 

 tato ; elytris suboblongis, late et leviter striato-punctatis, inter- 

 stitiis latis et dense arguteque punctatis (punctis vix subseriatim 

 dispositis) ; anteimis pedibusque piceis, iUis ad basin tarsisque 

 rufescentioribus. 



Long. Corp. liu. circa 1|. 



Judging from the many examples now before me, and which 

 were captured by Mr. Melliss, this might perliaps be assumed 

 to be one of the commoner of the 31 icroxT/Iohn ; yet, on the 

 other hand, it is a species which Avas not met with by the late 

 Mr. Bewicke. It differs from the whole of the preceding ones 

 in the comparatively mouiliform structure of its funiculus, the 

 five joints of which are almost of equal length and breadth — 

 even the basal one being very little larger than the second. 

 Its brassy hue and femoral spine indicate its affinity with the 

 Chevrolatii and conicollis ; but it is much more thickly and 

 strongly punctured than either of them, its sculpture, size, and 

 outline being rather more suggestive, at first sight, of the (un- 

 armed) M. terebrans in the last section. 



Genus 29. Pentarthrum. 

 Wollaston, Ann. Nat. Hist. xiv. 129 (1854). 



45. Pentarthrum subcmcum^ n, sp. 

 P. angusto-cylindricum, piceum, nitidum, calvum ; rostro brevius- 

 eulo, crassiusculo, subtereti, convexo, basi latiusculo, minute et 

 leviter punctulato, oculis obsoletissimis, oblitcratis, punctiformi- 

 bus [an vere observandis ?], quasi nuUis ; prothorace elongate, 

 subovato, basi truncato, ad latera rotnndato, pone incdium coleo- 

 pteris cvadenter latiore, argute (sed baud grosse) puuctato ; scu- 

 tello baud observando ; elytris angustis, parallclis, argute et laxe 

 striato-punctatis (pimctis sat maguis necnon inter se ])ariira re- 

 motis), intcrstitiis latis et minutissime uniseriatim punctulatis ; 

 antennis pedibusque breviusculis, paulo rufescentioribus ; funi- 



