THE ENTOMOLOGIST. 247 
and at last brown. Dr. Giraud obtained the fly in the 
following August.—G. L. Mayr. 
From galls of this species Mayr bred eight specimens of 
Synergus variabilis, J/ayr, from April to June of the second 
year, and one male of Sapholytus Haimi, Mayr, in June of 
the second year; but no parasite is recorded.—Z£. A. Fitch. 
Life-histories of Sawflies. ‘Translated from the Dutch of 
Dr. 8. C. SNELLEN VAN VOLLENHOVEN by J. W. May, Esq. 
(Contiuued from p. 8.) 
NEMATUS CONSOBRINUS, Voll. 
Imago and larva undescribed. 
Nematus niger, subnitidus, ore, scapulis, pedibus anticis et 
posteriorem coxis pro parte pallide flavis, pleuraram 
macula, abdomine subtus, segmentorum margine supra 
et pedum posteriorum femoribus et tibiis fulvis. 
For a long time | considered that the sawfly larva, which 
in our country feeds on the leaf of the gooseberry and often 
strips whole rows of bushes, was the same species as the 
Nematus which treats the currant bushes in the same way, 
and whose life-history I described in the second volume of 
this publication (‘Tijdschrift voor Entomologie,’ vol. ii. 
p. 69, pl. 4; Nematus ventricosus, Klug., ‘Zoologist’ for 
1862, p. 8079). It was only after I had made a drawing, 
some years ago, of the full-grown larva that | began to think 
that for a mere variety the difference was rather great; and 
I then determined, if possible, to rear the insect, so as to be 
able to see in how far the imago corresponded with that of 
N. ventricosus. 
After having reared some larve, taken in a garden at 
Leyden, but without any good result, I received some others 
from Haarlem, through the kindness of my friend Ritsema, 
and from these | obtained, in the spring of 1871, a sufficient 
number of imagos, which enabled me to satisfy myself that 
the newly-reared species from the gooseberry differs speci- 
fically from that, with which we are already well acquainted, 
living on the currant. I could find no description, either in 
Hartig or Stephens, nor in St. Fargeau or Dahlbom, agreeing 
