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.' — Edward Newman. 



Life-histories of Sawjlies. Translated from the Dutch of 

 M. S. C. Snellen van Vollenhoven by J. W. May, Esq. 



(Contiuuecl 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; Brulle in 

 Ann. de la Soc. Ent. de Fr. 1, p. 308, pi. 11; Harlig^ 

 Blatt-und Holzwespen, p. 175, No. I. 



Cladius niger, alarum tegulis, genubus, tibiis, tarsisque 



exceptis tarsis posterioribus, flavescenti-albis, antennis 



maris ramosis. 



Cladius difformis is distinguished from all the Tenthredinae 



with which I am acquainted by the singular and beautifully 



branched form of the antennae 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 CI. 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. 



CI. GeofFroyi differs in having the legs yellow, and the 



pectination of the third joint of the antennae white, perhaps 



in consequence of imperfect development. 



The peculiarity of the structure of the antennae 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 antennae 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; I 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 larvae are seldom met with in pairs on the leaves. 



