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



is no more connected, in reality, witli our present iaiuui than 

 it is -with that of any other country whore it has in like man- 

 ner been introduced through the medium of commerce. 



68. A Iph itohius j)i'ceus*. 



Tenehrio maiirifnntciis, Fab. [nee L., 17G7], Ent. Syst. i. 113 (1792). 

 Ilolops /mrM.<, Oliv., l':nt. iii. 58. 17. 22 (170'>). 

 Tenibrin faqi, Pnz.. Fna Ins. Germ. (il. .'5 (17S>1)). 

 Alphitohlm piceux, Woll., Col. Atl. 419 (180o> 

 , la., Col. llesp. 208 (18li7). 



Likewise obtained by ^fr. ]\Ielliss in St. Helena, but, of 

 course (as in the case of the preceding species), naturalized 

 through the medium of commerce. It has been established 

 equally in the Azores, Madeiras, Canaries, Cape-Vcrdes, and 

 in Ascension, in -which last-mentioned island it was found, in 

 company witli the A. diajjerinus, by the late Mr. Bewicke, )wt 

 in houses and amongst farinaceous substances, as we should 

 have expected, but " in the dung of sea-birds, miles from 

 habitable parts^^'' which is undoubtedly a singular habit for 

 these common and almost cosmopolitan insects to have ac- 

 quired. 



A. piceiis may be known from diaperinu.H by being a 

 trifle narrower and less shining, by its prothorax being re- 

 latively a little broader, rounder (and more margined) at the 

 sides, somewhat more thickly punctured, and with the hinder 

 angles more acute, by the punctures of its elytral interstices 

 being larger and more numerous, and by its tibiffi being ap- 

 preciably less widened, and almost free from (even minute) 

 spinules. Moreover it scarcely attains quite so large a sta- 

 ture as its ally. 



Genus 45. Gnathocerus. 

 Thunberg, Act. Holmiens. 47 (1814). 



G9. GnatJiocerus cornutus'^. 



Trogodta cormitn,Y&h., Ent. Syst. (Suppl.) SI (1798). 

 Ceratidria coniuta, AVoU., In.s. Mad. 490 (1854). 

 Gnathocerus cornutus, Id., Col. Atl. 420 (1865). 

 , Id., Col. llesp. 204 (1867). 



Like the last two species, and the two which follow, the 

 almost cosmopolitan G. cornutus has (judging from examples 

 now before me, which were captured by I^Ir. i\[elliss) become 

 established in St. Helena, where, no dou])t, it nnist occur, 

 amongst farinaceous and other substances, in and about thd 

 houses and stores. It has in like manner been introduced (of 



