LIFE-HISTORIES OF SAWFLIES. ; LV 
be sterile, the pairing taking place sometimes very early in the 
‘morning, as is the case with Actias Selene, and lasting but a very 
short time. I may, therefore, yet hope that many of the eggs 
will be fertile. 
Of Caligula Simla I have just received twenty-four eggs, but 
only three larve “have as yet hatched: these refused to eat 
chesnut and oak, and have died. ‘The other eggs, which seem in 
good condition, will very likely hatch; if so, I intend trying 
other food-plants. 
The long and severe winter we have had seems to have affected 
the pupe of the different species of Lepidoptera I have, and has 
delayed the emergence of the moths for several weeks. In all 
probability it has caused the death of many of the early spring 
species, such as Hndromus versicolora, Agha Tau, Attacus Spini, 
and others. 
June 21, 1879. 
LIFE-HISTORIES OF SAWFLIES, 
Translated from the Dutch of Dr. 8. C. SNELLEN VAN VOLLENHOVEN, 
By J. W. May. 
(Continued from p. 151.) 
CIMBEX SYLVARUM, F’. 
Imago: Fabricius, Entom. System., 105, 4. Panzer, Fauna 
Germ., 88, f. 16. Fabricius, Syst. Prezat., p. 16, No. 3, and 
p. 17, No. 7 (Tristis). Hartig., Blatt und Holzwespen, p. 64. 
Brischke und Zaddach, Beobachtungen, p. 48. 
Larva: Klug., Blattwespen-Gatt. Cumbex, p. 88 (C. Lucorum). 
Ratzeburg, Forstinsecten, i., p. 134, pl. 3, f. 10 (Lutea). 
Brischke and Zaddach, Beob., pl. 2, f. 1a and b. 
Cimbex nigra, parce nigro-pilosa, abdomine aut violascenti-nigro, 
aut rubro flavoque cingulato, alis albis aut flavescentibus 
pellucidis, macula sub stigmate et margine exteriore fuscis. 
I have referred on a previous occasion to the confusion 
existing in the nomenclature of the larger Cimbices, so that 
it will not be necessary to return to that subject now. We are 
indebted to Brischke and Zaddach for the light which has at 
