320 Mr. T. V. Wollaston on the Cohoptera of St. Helena. 



sides somewhat straight, slightly recurved, and ferruginous, 

 by its fine and short (but not very dense) cinereo-sericeous 

 pubescence, and by its entire surface being most minutely and 

 closely punctulated, the punctures being so crowded together 

 as to cause the surface to be dull and to appear at first sight 

 to be alutaceous, or even coriaceous. Its elytra are obsoletely 

 striated, but without any intermixture of larger punctures. 



Fam. 15. BostricMdae. 



Genus 24. Rhizopertha. 



Stephens, 111. Brit. Ent. iii. 254 (1830). 



30. Rhizopertha hifoveolata'^ . 



RhyzopeHlia hifoveolata, Woll., Ann. Nat. Hist. ii. 409 (1858). 



RhizopeHha , Id., Col. Atl. 232 (1865). 



, Id., Col. Hesp. 110 (18G7). 



I have little doubt that the present Rhizopertha has, like 

 the R. pusilla^ become naturalized in the island through the 

 medium of commerce ; and it is possible therefore that it may 

 be ascertained eventually to have been described by some 

 prior title to that which I myself proposed for it in 1858. Be 

 tliis, however, as it may, it seems to be conspecific with the 

 insect which was taken by Mr. M. Park " out of a cask of 

 fiour " at Madeira (in the Funchal custom-house), and likewise 

 with an example which I captured in a quinta at S*^ Catharina, 

 in the interior of St. lago, of the Cape Verdes. Unless I am 

 much mistaken, there are many examples of it in the collec- 

 tion at the British Museum bearing labels Avhich show how 

 widely the insect has become disseminated, through human 

 agencies, over distant parts of the civilized world. 



3 1 . Rhizopertha pusilla'^. 



Sytiodendron ptisillum, Fab., Ent. Syst. v. (Suppl.) 156 (1798). 

 ithyzopertha pusilla, Steph., he. cit. 354 (1830). 

 lihizopertha , Woll., Col. Atl. 232 (1865). 



Like the last species, the almost cosmopolitan R. pusilla 

 a])pears (jvidging equally from examples of it which were 

 taken by Mr.MclHss) to have become established in tlie ware- 

 houses and stores of St. Helena, just as it has in the Madeiran 

 archipelago and elsewhere. 



Fam. 16. Tomicidae. 



Genus 25. ToMicus. 

 LalrciUe, Hist. Nat. dcs Ins. iii. 203 (1802). 



