254 Mr. T. Vernon Wollaston on 
narrowed outline (the elongate-quadrate head and sub- 
cordate prothorax being narrower than in any Latridius 
with which I am acquainted), in conjunction with its 
minute eyes and parallel-elliptic elytra—which are 
densely and coarsely striate-punctate, and have their 
second interstice, as well as the submarginal one, elevated 
into an unbroken costa extending from the base to the 
extreme apex,—give it a character which it is impossible 
to mistake. Its head and prothorax (the anterior portion 
of the former, containing the mouth-organs, bemg much 
developed and prominent) are greatly roughened, and 
almost scabrose, and its limbs are slender. 
The L. Watsont, like most of the Latridii, and other 
insects of similar habits, is manifestly not truly indigenous 
in Madeira; though it may very possibly have become 
naturalized in some of the houses of Funchal. Indeed it 
is far from unlikely that it was originally of even Ameri- 
can origin, for there is an example of it in the collection 
of the British Museum labelled as having been received 
from Chili. 
Fam. MYCETOPHAGIDL. 
p- 156 (genus Symsiorzs). 
(Sp. 447) Symbiotes pygmeus. 
According to Tournier (Pet. Nouv. Ent. No. 3), who 
professes to have seen Heer’s type, the Symbiotes pyg- 
meeus 18 identical with the ‘* Hpurcea rubiginosa” of that 
author; and of course, therefore, if this should prove to 
be the case, the latter specific title (having been published 
nine years before the other) would have the priority. 
However I cannot but feel that there must be some mis- 
take either on the part of M. Tournier, or else perhaps 
in the accidental transposition of Prof. Heer’s types,— 
for, in the first place, there is no species published by 
Dr. Heer under the actual title of Hpurcea rubiginosa ; 
Hrichson’s genus Hpurcea was not even established until 
two years after the appearance of the ‘ Fauna Coleopte- 
rorum Helvetica.’ There is a “ Nitidula rubiginosa,” it 
is true, which I fully admit, from its position in the 
genus, must in all probability be an Hpurea ; but it is 
well-nigh incredible, judging from the diagnosis, that it 
