]\lr. T. V. Wollaston 07i the Coleoptera of St. Helena. 33 



course througli the medium of commerce) in the Madeiras, 

 Canaries, Cape-Verdcs, and Ascension. 



Genus 46. Tuibolium. 

 MacLeay, Annul. Javan. 47 (1825). 



70. Triholium ferrugineum *. 



Tcnehrio ferrugineus, Fab., Spec. Ins. i. 324 (1781). 

 TriboUum ferrmjincinn, Woll., Col. Atl. 420 (1865). 

 , Id., Col. Hesp. 204 (18G7). 



There is hardly any Coleopterous insect more liable to acci- 

 dental introduction, along with numerous articles of food and 

 commerce, into the various countries of the civilized world 

 than the present one ; and it is not surprising, therefore, that 

 it should have been found by Mr. ]\Ielliss, together with other 

 species of similar habits, in St. Helena. It has become esta- 

 blished, in like manner, in the Azorean, Madeiran, Canarian, 

 and Cape -Verde archipelagos. 



Fam. 26. Tenebrionidae. 



Genus 47. Tenebrio. 

 Linnaeus, Syst, Nat. edit. 6 (1748). 



71. Tenebrio obscurus*. 



Tenebrio obsciinis, Fab., Ent. Syst. i. Ill (1792). 

 , Woll, Col. Atl. 424 (1865). 



The common Tenebrio obscurus has become naturalized in 

 the houses and granaries of St. Helena, where it was taken 

 abundantly by Mr. Melliss. It would seem to have acquired 

 a more southern range, on the whole, than T. molitor ; for 

 while it has been established almost universally through- 

 out the Azorean, Madeiran, and Canarian archipelagos, T. 

 molitor, on the contrary, I have never yet fallen in with in 

 any of them — two examples, which were eaptui'ed in Madeira, 

 many years ago, by the late Dr. Heineken, supplying tlie 

 only instance, so far as I am aware, of its occurrence in the 

 Atlantic groups. 



Genus 48. ZornoBAS. 



(Dejean) Blanch., Hist. Nat. des Ins. ii. 15 (1840). 



72. Zojyhobas concolor, n. sp. 



Z. subparallelo-elongatus, niger (concolor), subnitidus sed interdum 

 hiuc inde quasi nebuloso-subopacus, calvus, alatus ; capite antice 

 Ann. (Sc Mag. N. Hist. Ser. 4. Vol.^. 3 



