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



The M. conicolUs was taken by tlie 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 leneath which also (amongst the dead leaves) he has at 

 times found it abundantly. 



B. Funiculus submoniliformis, articuUs omnibus inter se subcequalibus. 



44. MicroxyloMus monilicornis^ n. sp. 



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

 gute pimctato, rostro breviusculo subtereti latiusculo confertim 

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

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

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

 stitiis latis et dense arguteque punctatis (punctis vix subseriatim 

 dispositis) ; antennis pedibusque piceis, illis ad basin tarsisque 

 rufescentioribus . 



Long. Corp. lin. circa 1|. 



Judging from the many examples now before me, and which 

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

 to be one of the commoner of \\\e, Microxylohii \ yet, on the 

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

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

 in the comparatively moniliform 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 conicolUs ; 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. Pentaethrum. 

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



45. Pentartlirum suhccecum, n. sp. 

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

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

 leviter punctulato, oculis obsoletissimis, obliteratis, punctiformi- 

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

 subovato, basi truncate, ad latera rotundato, pone medium coleo- 

 pteris evidenter latiore, argute (sed baud grosse) punctate ; scu- 

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

 striato-punctatis (punctis sat magnis necnon inter se parum re- 

 motis), interstitiis latis et minutissime imiseriatim punctulatis ; 

 antennis pedibusque breviuscuHs, paulo rufescentioribus; funi- 



