Mr. T. V. Wollaston on the Coleoptera of St. Helena. 407 



31. ohliteratus and dehilis. Apart, however, from its different 

 outline, and perhaps rather less intensely brassy tinge, it may 

 be known from both of these by its larger size and by being 

 altogether more coarsely and closely punctured. Its elytral 

 stria, moreover, are deeper at their extreme base, and have 

 the appearance at first sight of short divergent grooves. 



40. Microxyhhius ohliteratus, n. sp. 



M. breviter ovato-fusiformis, Isete seneus, nitidissimus, calvus ; 

 capite parce et leviter punctulato, rostro (saltern in foeminis) 

 elongate siibgracili tereti, in maribus sat profunde sed in foeminis 

 minutius punctato ; prothorace ovato, basi truncato, ad latera 

 parum rotundato, eonvexo, parcius et plus minus obsolete punc- 

 tato (puuctis magnia sed levibus, interdum subobliteratis) ; elytris 

 convexis, ad latera rotundatis, leviter punctato-striatis, intersti- 

 tiis leviter subseriatim punctatis (punctis ubique sat magnis sed 

 levibus) ; autennis pedibusque fere ut in specie prsecedente, sed 

 illis paulo gracilioribus capitulo minus abrupto. 

 Long. Corp. lin. 1|. 



The M. ohliteratus is not only more highly polished and 

 more resplendently brassy than the terehrans, but it is also a 

 little shorter and relatively more ovate or elliptic, being wider 

 in proportion to its length. Its rostrum and antennge (which 

 have their club less abrupt) are more slender, the former, in 

 the female sex, being especially longer and more shining ; 

 and its prothorax and elytra, particularly the former, have 

 their punctures (although perhaps equally large) altogether 

 less densely packed and more lightly impressed — those on the 

 prothorax indeed being sometimes, as in the case of a female 

 example (the only one of that sex which I have yet seen) 

 which is now before me, nearly obliterated. The very few 

 specimens of this distinct Mtcroxylohius which have come be- 

 neath my notice are amongst the Coleoptera captured by 

 Mr. Melliss. 



41. Mtcroxylohius dehilis, n. sp. 



M. angustus, fusiformis, Isete aeneus, nitidus, calvus ; capite parce 

 et leviter punctato, rostro elongate subgracili sat confertim ac 

 profunde punctato ; prothorace ovali, eonvexo, parum grosse sed 

 vix profunde punctato ; elytris elUpticis (antice valde et gradatim 

 augustatis — quare antice et postice subaequaliter attenuatis), 

 grosse sed vix profunde striato-punctatis, interstitiis sat grosse 

 uniseriatim punctatis, ad basin ipsissimam mucronibus asperatis ; 

 antennis pedibusque fere ut in specie praecedente sed subgraci- 

 lioribus ac sensim obscurioribus, ilKs paido brevioribus, funiculi 

 art" 1™° secundo subbreviore (nee sublongiore). 



Long. Corp. Un. 1|^. 



The single example from which the above diagnosis has 



