234 Mr. T. Vernon Wollaston on 
continental types of the latter, he finds that the species 
from the Canaries is in reality distinct ; and he has con- 
sequently proposed for it, in his Monograph of the family 
(which is already in the press), the name of Bruckii. 
Without therefore attempting to anticipate Mr. Matthews’ 
diagnosis, I will just call attention to the fact—that the 
synonymy of the species will, consequently, have to be 
thus emended :— 
Ptenidium Bruckii. 
Ptenidium levigatum, Woll. [nee Gillm.], Cat. Can. 
~ Coll. 104 (1864); Id., Col. Atl. 101 (1865). (Ptenidiwm 
Bruckii, Matth., Mon. Trichopt.). 
Hab.—Canarienses (Can., Ten., Gom., Palma, Hierro) ; 
sub quisquiliis in inferioribus intermediisque, late sed 
parce diffusum. 
(Sp. 284) Ptenidium apieale. 
The Atlantic examples of this Ptenidium (so abundant 
throughout the Madeiran and Canarian archipelagos) 
differ a little from the ordinary ones of the P. apicale, of 
more northern latitudes; but Mr. Matthews until lately 
did not think that the points of discrepancy were of suf- 
ficient significance to indicate more than a very slight 
geographical variety of the common Huropean species. 
Motschoulsky, however, in a recent paper on the Ptiliade, 
having separated the Atlantic form under the name “ ato- 
maroides” (stating, moreover, that it occurs likewise in 
Georgia and Dalmatia), Mr. Matthews is inclined now to 
acknowledge it as distinct; and I have no choice, there- 
fore, with such an authority before me, but to do so like- 
wise. Motschoulsky gives no formal diagnosis of his 
P. atomaroides, but makes the following remark: ‘‘ Forme 
et couleurs voisines de celles de l’apicalis, Gillm. viii. 2, 
mais toujours plus grand et plus large aux élytres, ce qui 
lui donne l’aspect trapu du pusillum ; de chaque cdté de 
la base du corselet on voit une impression transyversale 
fovéiforme et sur le milieu des vestiges de deux points; 
élytres ponctuées par des points trés-fins, dispos¢s en stries 
et garnis chacum d’un poil assez long.’ Accepting 
therefore the atomaroides as distinct from the European 
P.apicale (which I must confess that I do with consider- 
able reluctance) , the synonymy of the species will require 
to be emended thus :— 
