Genera of the Cossonidce. 509 



Amongst other peculiarities, our present insect is remark- 

 able for its elliptic outline, for its long and parallel but 

 arcuated rostrum, for its funiculus being- gradually much 

 increased in width towards the club, and for the latter 

 being extremely large and solid, though obliquely trun- 

 cate at the inner apex, at which particular point it is 

 densely clothed with a velvety pubescence. Its prothorax 

 (which is but slightly constricted in front) is nearly cylin- 

 drical, and very much -narrower than the elytra, the latter 

 (which have their interstices, especially the alternate ones, 

 costiform) are wide in front but acuminated behind, its 

 legs are exceedingly long and thickened, its tibiae are 

 somewhat curved (the four hinder ones moreover being 

 armed at their apical angle with a short but robust spine), 

 its third tarsal joint is simple, and its front coxas are con- 

 tiguous, the intermediate ones but very slightly separated, 

 and the hinder pair exceedingly remote. 



The S. confluens is from the collection of Mr. Pascoe, 

 and was taken by Mr. Wallace at Sarawak in Borneo. 



7. CmERORRHiNUS (Fairmaire, Ann. de la Soc. Ent. 

 de France, 742. 1857). I am indebted to John Gray, 

 Esq., for an opportunity of inspecting the European genus 

 Cheer orrhinus, of Fairmaire ; and it is not without the 

 greatest astonishment that I have observed the excessive 

 inaccuracy of the original diagnosis in assigning it to the 

 Dry 'ophthor 'ides, an inaccuracy which is quite unpardon- 

 able, and which has misled every subsequent author (in- 

 cluding even Lacordaire) who has been content to trust to 

 the published details, and not to examine them for him- 

 self. The primd facie aspect of its opake, deeply-sculp- 

 tured surface, which is besmeared with dirty, mud-like 

 scales, in conjunction with the cariniform structure on. 

 either side of its elytral apex, are without doubt marvel- 

 lously suggestive of Dryophthorus, so much so indeed 

 that it may fairly be regarded as establishing, in conjunc- 

 tion with Synommatus, a curious affinity between the 

 Dryophthorus-type and the subfamily Pentarthrides (to 

 which it belongs) ; but there the resemblance altogether 

 ceases ; and it is surprising how any careful Coleopterist 

 could be misled by characters so eminently superficial. 

 In real fact its funiculus is fiv ^-articulate, which at once 

 removes it from the Dryophthorides in which that organ 

 is composed of only four joints. Then its feet are on the 

 ordinary pseudotetramerous pattern, instead of as in the 



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