302 Mr. T. V. Wollastou on the Coleoptera of St. Helena. 



It will be seen, on reference, that the seventy-four species 

 of the subjoined list distribute themselves under twenty-eight 

 families and no less than iifty genera. Of these seventy-four 

 species I have been compelled to treat about forty as if 

 they had not been detected in any other country, though it is 

 probable that some five or six of them (as, for instance, the 

 Histeridce, the Anohium confertum, and the Bruclii) will be 

 found eventually to have been already described. The seven 

 genera which would appear to be peculiar to the island are 

 Haplothorax (of the Carabidee), Mellissius (of the Dynastid^), 

 Microxylobius, Nesiotes, and TrachypJiloeosoma (of the Curcu- 

 lionidaj), vaifS. Notioxenus and Homoeodera (of the Anthribidas) , 

 three of which [Mellissms^ Tracliypliloeosoma^ and Homoeodera) 

 have been enunciated for the first time in this memoir. The 

 species which in the present paper I have described as new are 

 the twenty-five following : — 



Bembidium Mellissii. Nesiotes asperatus. 



Tribalus 4-striatus. Trachyphloeosoma setosum. 



Saprinus lautus. Sciobius subnodosus. 



Mellissius eudoxus. Notioxenus dimidiatus. 



adumbratus, alutaceus. 



Ileteroderes piincticoUis, Homoeodera rotiindipennia. 



Anobium coufertum. alutaceicollis. 



Tomicus semulus. pygmaea. 



Microxylobius vestitus. Bruchus rufobrunneiis. 



obliteratus. advena. 



debilis. Zophobas concolor. 



monilicornis. Mordella Mellissiana. 



Pentarthriim siibcaeciim. 



If we exclude from consideration the twenty-six species 

 (above alluded to) which have unquestionably been brought 

 into the island through the medium of commerce, and which 

 enter into the fauna of nearly every civilized country, I need 

 scarcely add that the St.-Helena list, as hitherto made known, 

 possesses nothing whatever in common with those of the three 

 sub-African archipelagos which lie further to the north — 

 though the great development of the Curculionideous sub- 

 family Cossom'des is a remarkable fact which is more or less 

 conspicuous throughout the whole of them. 



stated) the twenty-six which have matiifedly been introduced (and most 

 of them, perhaps, quite recently) can have no real connexion with the 

 true fauna of the island ; nevertheless, even were we to do so, the ;?os(V/ow of 

 the lihynchophora as the most extensive of the various groups (although 

 its relative proportion to them would be lowered) would remain tho 

 same. "Whilst in the former case, however, it numbers twenty-six, and 

 the remaining sections (combined) twenty-two, in this instance it would 

 contain thirty, and the other eleven divisions forty-four. 



