Mr. T. V. Wollaston on the Coleoptera of St. Helena. 403 



teriorly with minute cinereous pubescence. Instead of being- 

 opaque, alutaceous, and tuberculated, like the lacertosus, it is, 

 as in the case of the lucifugus^ faintly shining and punctured. 

 Its punctures, however, are not so densely crowded together, 

 or so coarse, as in the latter species ; and its elytra (which are 

 scarcely so long as the anterior portion of the body) are more 

 conspicuously striate, and with a single row of punctures 

 down each interstice. Its legs are exceedingly short, like 

 those of the lacertosus ; and its prothorax is very largely deve- 

 loped — indeed, more so, perhaps, in proportion to the size of 

 the insect, than in any of the other members of the genus 

 which have hitherto been brought to light. 



Microxylohius angustus^ n. sp. 



M. angustus, subcylindricus, seneus (interdum subvirescenti-feneus), 

 nitidulus, calvus ; capite punctato, rostro deusius ac profundius 

 punctato, ociilis prominuhs ; prothorace sat dense et profunde 

 punctato, ad latera parum rotundato, basi e-videnter anguste mar- 

 ginato ; elytris elongatis, subparalleHs, postice gradatim attenuatis 

 et ibidem (oculo fortissimc armato) minutissime sed parce pubes- 

 centibus, sat profunde substriato-punctatis. 



Long. Corp. lin. circa 2. 



Judging from three examples now before me, which were 

 taken by Mr. Melliss, the present species appears to be rather 

 larger than the M. dehilis^ as also relatively longer, narrower, 

 and more cylindrical, the elytra (instead of being considerably 

 rounded outwards behind the middle) being very little ex- 

 panded at the sides. Its punctation likewise is altogether 

 deeper and closer, its eyes are appreciably more prominent, 

 its prothorax is more evidently margined behind, its elytra 

 have less indications of minute asperities at their base, and its 

 surface is a little less shining*. 



Microxylohius cossonoides^ n. sp. 



M. elongatus, fusiformis, aeneus (aut subvirescenti-seneus), nitidulus, 

 minute et parce (in elytris evidentius ac seriatim) cinereo-pubes- 

 cens ; capite dense et argute punctato, rostro elongate gracili ; 

 prothorace ovato, basi truncate et ibidem evidenter marginato, 



* I may just mention that five individuals fi-om the late collection of 

 Mr. Melliss, and which I have no hesitation in referring to the same spe- 

 cies as the single example which 1 formerly described under the name of 

 M. dehilis, are a trifle less evidently punctured (at any rate, on the pro- 

 thorax) than my type of the latter, and the minute asperities at the base 

 of their elytra are not quite so developed. In all probability, however, 

 the two forms represent but very slightly modified or local races of a 

 single species. Judging from these five examples, also, the M. debilis 

 would appear occasionally, like most of the brassy forms, to become 

 darker in hue — indeed nearly black. 



