100 
ST. HELENA. 
I can scarcely refuse it a place in the present memoir, inasmuch 
as it was originally described by Fabricius, in 1775, from an example 
i.or examples) in the collection of Sir Joseph Banks, which had been 
obtained in that Island.” I have not seen this insect on the Island, 
but the larva; which I saw hanging to the rocks, and prickly-pear 
bushes in the locality of New Ground, supposing them* to belong to 
Cydonia lunaia, may possibly have belonged to this species, as it 
seems to attach itself to that plant. 
Fam. HopatridS. 
Hopatrum, Fab. 
*H. hadroides, Woll. — A brown, mud-coloured Beetle, about 
one-third of an inch in length, generally covered with a thin coating 
of earth. Of all the Coleoptera in the Island, this is the most 
pi entiful. It is found everywhere, but inhabits chiefly the high land, 
where, at Longwood and other farms, it abounds in the ploughed 
and cultivated fields. I have turned over the surface soil with 
my foot and exposed hundreds of these insects to view. They are 
especially fond of congregating around the stems of potato plants, 
and as they do not appear in any way destructive to the plant, I 
imagine their object is to seek it's shelter from the heat of the sun. 
Mr. Wollaston says: “The II. hadroides is very nearly akin to a 
species which was taken by Mr. Bewickc at the Cape of Good Hope ; 
but it is altogether rather larger, broader, and more parallel, its head 
is a little wider, with the yen® more rounded, its prothorax is less 
deeply scooped out in front, with the anterior angles consequently 
less porrect and more obtuse, the hinder angles also are somewhat 
less produced, and its shoulders are more rectangular.” 
Fam. TJlomid 
Alphitobius, Steph. 
A. diaperinus, Kugel.— Mr. Wollaston writes of this insect : 
“Judging from the specimens which were taken by Mr. Melliss, 
the widely-spread A. diaperinus has become established at St. Helena, 
as is the case with it in the Madeiras, Canaries, Cape Verdes, and 
Ascension, and indeed throughout the greater portion of the 
civilized world; but I need scarcely add that it is no more con- 
