THE ENTOMOLOGIST. 5 
Life-histories of Sawflies. Translated from the Dutch of 
M.S. C. SNELLEN VAN VOLLENHOVEN by J. W. May, Esq. 
(Continued from yol. vii. p. 271.) 
CimBEx Lucorum, L. 
Imago: Linn. S. Nat. 12 ed., No. 1527; Fabr. Ent. Syst. ii. 
105, No. 2; Klug. Vers. Cimb. p. 85, No. 4; Hartig, 
Blatt-und Holzwespen, p. 68, No. 3. 
Larva: Brischke und Zaddach in Schrift d. K. Phys. Oekon. 
Gesells. zu Konigsb. ui. p. 257, No. 7; pl. ii. fig. 7. 
Cimbex nigra fusco villosa, antennis rufo annulatis, tibiis 
tarsisque fulvis. 
I have at last succeeded in rearing the larva of Cimbex 
Lucorum. It may, perhaps, be remembered that in the year 
1843 I published, in the ‘Tiydschrift voor natruulijke 
Geschiedenis en Physiologie’ of Messrs. Van der Hoeven and 
De Vriese, a paper on the larva of Cimbex Lucorum, and that 
some years later I explained, in the second volume of this 
publication (‘ Tijdschrift voor Entomologie’), that I had been 
mistaken in the name. I have since reared many species of 
the same genus, some of which have been figured and 
described, but I had not succeeded in obtaining the species, 
whose name I had misapplied, until last year, when the larva 
was sent to me from Gelderland. It is again to my friend, 
De Roo van Westmaas, that I am indebted for my acquaint- 
ance with this larva. At the end of June, 1867, he kindly 
sent to me two young larve, taken near Velp on birch. In 
colour and appearance they exactly resembled the larva of 
Betuleti (see vol. ii. pl. 3, fig. 1); but as the latter feeds 
exclusively on hawthorn,—and I had learned from the paper 
of Prof. Zaddach, referred to at the head of this description, 
that Cimbex Lucorum fed on the birch,—I determined to 
wait and see whether a subsequent moult would reveal any 
difference between it and the species I had already described ; 
and this proved to be the case. After the last moult a con- 
siderable difference was observable: the larva was paler, and 
of a more bluish green than that of Betuleti; the skin was 
smoother, and not so thickly granulated with white points; 
the shape, and colour, of the spot on the head was different ; 
