252 Mr. T. Vernon Wollaston on 
failed to procure even a second. Apart from its dark- 
brown hue and elongate-ovate outline, it may at once be 
known from the other Madeiran Corticarie hitherto 
brought to light by the broad transverse arcuated im- 
pression which stretches completely across the hinder 
region of its (rather narrowed) prothorax. 
(Sp. 431) Corticaria tenella. 
It would appear from the Baron Harold’s recent Cata- 
logue that a Corticaria was published by Leconte (Proc. 
Ac. Phil. 301) under the title of tenella in 18553 so that 
the little Canarian species which I described in 1864 will, 
in consequence, require anew name. I would therefore 
propose for it that of delicatula (which seems to be un- 
appropriated in this genus), and will cite its corrected 
synonymy thus :— 
Oorticaria delicatula. 
Corticaria tenella, Woll. [nec Lec. 1855], Cat. Can. Col. 
150 (1864); Id., Col. Atl. 151 (1865). 
Hab.—Canariensis (Can., Ten., Gom., Palma, Hierro) ; 
: 5) ) 3 5) 
passim. 
p. 152 (genus Larrivivs). 
It is somewhat remarkable that the British L. nodifer 
should have escaped all former observations in the Atlan- 
tic islands, for during our late sojourn at Madeira we met 
with it in profusion throughout the entire district of 
“the Mount” (from about 1600 to 1900 feet above Fun- 
chal), and likewise in scarcely less abundance at 8. An- 
tonio da Serra. It was obtained chiefly from amongst 
garden-refuse, and by sifting, in cultivated spots; and I 
think it far from unlikely therefore that the species has 
become accidentally naturalized from some more northern 
country. At any rate it is an interesting addition to the 
catalogue, and all the more so since it has been recorded 
by Mr. Crotch as having been taken likewise in 8. Miguel 
and Fayal at the Azores. The following brief diagnosis 
a suffice to inaugurate the species into the Madeiran 
1st. 
