LIFE-HISTORIES OF SAWFLIES. 101 
with wings erect and vibrating ready for flight; while C. sponsa 
frequently allows them to drop roof-like over its body: both, 
when disturbed, fly upwards, careering round and round the tree 
with great velocity. 
(To be continued.) 
LIFE-HISTORIES OF SAWFEFLIES, 
Translated from the Dutch of Dr. 8S. C. SNELLEN VAN VOLLENHOVEN, 
By J. W. May. 
(Continued from vol. xi., p. 247.) 
Lypa cLypEata, Klug. 
Imago.—Klug, Die Blattwespen nach ihren’Gattungen und Arten 
in Magazin der Gesellsch. nat. Freunde zu Berlin, u. 
(1808) p. 279. 
Larva.—Schrank, Fauna Boica, i., 1, p. 255. Ratzeburg, Die 
Forstinsecten, i., 83, Pl. I, f. 5. DeGeer, Mémoires 
(translation by Goetze), i1., 2, pp. 288 and 293; Pl. 40, 
figs. 15, 16, 24, 25, and 26. Frisch, Insecten in Deutschland, 
WA 50 Os Ply XIX. 
Lyda nigra, abdomine maculis lateralibus 6 aut 8 pallide luteis, 
apice ferrugineo, pedibus ferrugineo-flavis; antennarum 
articulo quarto longissimo, alarum fascia transversa fusca. 
Long. 11 mm. Exp. alarum 24 mm. 
By some writers this insect is called Lyda Pyri, Schr., from 
the passage in the ‘ Fauna Boica’, above indicated, where, however, 
Schrank only gives a very short notice respecting the appearance 
and food of the larva, which seems to me (following the authority 
of Razteburg) insufficient to give the right of priority to his 
name; for which purpose it is absolutely necessary that the 
diagnosis of the perfect insect should be sufficient to distinguish 
it from others of the same genus. [or this reason I retain the 
name given by Klug in 1808. The genus Lyda, to which this 
species belongs, is, in this country, represented by but few 
species, which, moreover, are somewhat scarce: of the eight 
indigenous species with which I am acquainted I have only been 
able to observe the larve of two, namely, the present one and 
another species, the green larva of which occurs in Gelderland 
