26 THE ENTOMOLOGIST. 
with silver; the wing-rays have, however, retained their 
distinctness, and their median area has a circular and clearly- 
defined black spot. The other markings call for no especial 
mention. ‘This specimen is in the possession of Mr. Bernard 
Cooper, who has kindly lent it me purposely for figuring in 
the ‘Entomologist. —Hdward Newman. — 
Life-histories of Sawflies. Translated from the Dutch of 
M.S. C. SNELLEN VAN VOLLENHOVEN by J. W. May, Esq. 
(Continued from p. 8.) 
CLADIUS DIFFORMIS, Panz. 
Imago and larva: Panzer, Fauna Germ. 72, fig. 10; Lepele- 
tier de St. Fargeau, Monogr. p. 57, No. 165; Brullé in 
Ann. de la Soc. Ent. de Fr. 1, p. 308, pl. 11; Hartzg, 
Blatt-und Holzwespen, p. 175, No. 1. 
Cladius niger, alarum tegulis, genubus, tibiis, tarsisque 
exceptis tarsis posterioribus, flavescenti-albis, antennis 
maris ramosis. 
Cladius difformis is distinguished from all the Tenthredinz 
with which I am acquainted by the singular and beautifully 
branched form of the antenne in the male. It is true that in 
the work of Lepeletier de St. Fargeau, loc. cit., at No. 166, a 
second species, having this peculiar structure, is described 
under the name of Cl. Geoffroyi; but this species, which I 
have not yet met with, appears to be merely a variety of the 
former, and one which Lepeletier himself had never observed. 
Cl. Geoffroyi differs in having the legs yellow, and the 
pectination of the third joint of the antennz white, perhaps 
in consequence of imperfect development. 
The peculiarity of the structure of the antenne of Difformis 
(male) strikes one at the first glance; the species is by no 
means scarce, so that an opportunity is frequently afforded of 
seeing these curious antennz in motion. The insect lives on 
many species of rose, perhaps on all. I have not yet suc- 
ceeded in finding the egg, nor in discovering the place of its 
concealment; | suppose that it is simply deposited in a slit 
of a leaf-vein, and probably each egg by itself on a separate 
leaf, as the larve are seldom met with in pairs on the leaves. 
eg a 
