THE ENTOMOLOGIST. 24^ 



and at last brown. Dr. Giraud obtained the fly in the 

 following August. — G. L. Maijr. 



From galls of this species Mayr bred eight specimens of 

 Synergus variabilis, ^Jal/r, 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. — E. A. Fitch, 



Life-histories of Sawjlies. Translated from the Dutch of 

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



(Contiuuecl from p. 8.) 



Nematus consobrinus, Voll. 



Imago and larva undescribed. 



Nematus niger, subnitidus, ore, scapulis, pedibus anticis et 

 posteriorem coxis pro parte pallide flavis, pleurarum 

 macula, abdomine subliis, segmentorum margine supra 

 et pedum posteriorum femoribus et tibiis fulvis. 



For a long lime I 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 ('Tiidschrift voor Entomologie,' vol. ii. 

 p. 69, pi. 4; Nematus veutricosus, Klug., 'Zoologist' for 

 1862, p. 8079). It was only after I had made a drawing, 

 some yeais ago, of the full-grown larva that 1 began to think 

 that lor 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 larvae, 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 1 obtained, in tlie spring of 1871, a sufficient 

 number of imagos, which enabled me to satisfy myself that 

 the newly-reared species from the gooseberry di tiers 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 



