114 Mr. Martin Jacoby on 
under the same specific name; as Boheman’s name has 
priority, that of Chapuis cannot remain and I alter it there- 
fore to Trichostola chapuisi. This species is described as 
being flavo-ferruginous, so that it has nothing to do with 
any of those in the present paper. 
Through the kindness of Dr. Aurivillius of the 
University Museum at Stockholm, I have been enabled to 
examine Boheman’s types, both of <Acis vestita and 
Colaspis puberula, from the island of Mauritius. 
With respect to the first-named species, the type seems 
different from any of the forms obtained by Mons. 
Alluaud and described here; it is a true Zvichostola and 
has nothing to do with Colasposoma. The entire upper 
surface is densely clothed with pale fulvous pubescence, 
through which the punctuation can only be seen with 
difficulty. Boheman gives the colour as “‘ cupreus-eneus,” 
but the specimen sent to me by Dr. Aurivillius is nearly 
black excepting the shoulders; the punctuation of the 
head is not distinguishable owing to the pubescence; the 
antennze extend rather beyond the middle of the elytra, 
the first five joints being flavous, the rest fuscous and 
thickened ; the thorax is twice as broad as long, narrowed 
in front, with strongly rounded sides, its punctuation 
is again indistinguishable, or extremely fine where 
traces are visible; that of the elytra consists of closely- 
placed large punctures, arranged in very close longitudinal 
striz ; the interstices are clothed with pale pubescence 
arranged in rows, to the number of about twelve, the 
shoulders and the sides showing a distinct metallic brassy 
gloss ; the underside is darker obscure-zeneous and the legs 
are fulvous. The length of the insect is 1? millim. 
Trichostola (Colaspis) puberula, Boh. 
This species is much larger than the preceding one 
(measuring nearly 3 millim. in length), of dark zneous 
colour. The head is remotely and finely punctured 
(sparingly pubescent in the specimen before me), the 
labrum is fulvous; the antennz are robust, nearly black, 
the lower three joints dark fulvous, the third and fourth 
joints equal. The thorax is strongly transverse, widened 
at the middle, with strongly rounded sides and close and 
very strong punctuation, “which distinguishes this species 
