[ 44 [ 
XVI. IaPyx, a new Genus of Insects belonging to the Stirps Thysanura, i» the Order 
Neuroptera. By A. H. HALIDAY, F.L.S. 
(Plate XLIV.) 
Read January 21st, 1864. 
THE genus Campodea*, first characterized by Mr. Westwood (in the Transactions of 
the Entomological Society of London, vol. iii. pp. 231-234, and pl. 8. figs. 14-23), and 
subsequently designated by M. Gervais (Suites à Buffon, Insectes Aptéres, tom. iii. 
p: 455) as a link between the rest of the Thysanura and the Neuroptera which acquire 
wings and have caudal filaments (the Perlide for instance), has been left in the family 
Lepismide in, I believe, all modern systems of entomology which take notice of the 
genus at all, notwithstanding that it cannot hold such a position except by virtue of a 
considerable modification of the characters usually employed to define that family. The 
abnormal character of the genus is indicated by the varying place assigned to it by the 
few authors who appear to have observed the insect previous to the present century,— 
Linnæus and, following him, Schrank having made of it a species of Podura, while 
Otho Müller has anticipated the conclusions of the moderns more accurately in referring 
it to the genus Lepisma. It may be, perhaps, no unfair inference to draw, that the insect 
in question is in some measure intermediate between both; and the recent discovery of 
an allied form induces me to propose the removal of the former, along with this, into a 
distinct family. The new insect referred to was first observed by me, under stones, in 
the neighbourhood of Lucca, when I was collecting the larve of Embia and Termes. 
Afterwards it occurred in other parts of Italy, and I communicated specimens to some 
of my entomological correspondents (under a name I have found cause to change here), 
supposing it to be entirely new, as it was so to them. Lately, however, in passing 
through Paris, having showed specimens to M. Lucas, he at once recognized it as an 
insect he had met with, years before, in Algeria. A drawing which he showed me left 
no doubt of the identity of the two. M. Lucas, however, had not thought fit to publish 
* Campodea ambulans. 
Pediculus terrestris, L. Fn. S. i. 1170. 4 
Podura ambulans, L. Fn. S. ii. 1936 &c. ; Schrank, Fn. B. iii. 184. 
Lepisma minuta, Müller, Prodr. Zool. Dan. ig SOM 
Campodea staphylinus, Westwood, Trans. Ent. Soc. Lond. iii. 231-234 ; — Nicolet, &c. 
? Campodea succinea, Nicolet, Ann. Soc. Ent. France, série ii. tom. v. p. 355. | کا‎ 
Degeer first gave occasion to the oblivion into which the Linnean insect has fallen for so e ا‎ 
citation to his Podura terrestris, a Lipura. The description by Linnaeus generally, boye sii : the sis — 
as long as the body," and the superior size of the insect negative this app Fem n opo. d ic 8 a 
happens, Degeer has been followed implicitly by others. Schrank alone, so far as I know, has appli e : det 
properly, and described the true Linnean insect. I have found it in Italy, up to the height of 7000 feet (top 
Cimone), and perhaps higher still on the passes south of Monte Rosa. 
