( X ) 



series of Eurytoma hyalij^ennis, Walk. (? = /. graminicola, Gir.), E. longi- 

 peimis, Walk., and specimens of three species oi B'raconid<B, two species of 

 Pteromalidm, and two other Chalcids bred from the Triticum. galls. 



June 7, 1883. 

 H. T. Stainton, Esq., F.R.S., &c., President, in the chair. 



Donations to the Library were announced, and thanks voted to the 

 respective donors. 



Exhibitions, dc. 



Mr. P. B. Mason exhibited a specimen of Zygcena JilipendulcE, var. 

 chrymnthemi, Esp., figured by Hiibner, which was captured by Mr. J. E. 

 Nowers last June in Bewdley Forest ; also a corresponding greenish black 

 variety of Callimorpha dominula, L., bred at Dover. Mr. Mason remarked 

 that he had recently examined the specimens of Xylophasia ZolUkoferi, 

 Fr., now in the Doubleday Collection at the Bethnal Green Museum, 

 which was captured by Mr Harding at Deal about ten years ago, and he 

 had no doubt but that it was a bleached specimen of the dark variety of 

 X. polyodon, L. 



Mr. Mason also exhibited two specimens of the Noctua recorded by 

 Dr. Knaggs as Agrotis helvetina, Boisd. Three specimens were taken near 

 Derby in 1870 ; one of these Mr. Mason received direct from the captor, 

 and the other but one remove from him. He had recently sent these to 

 Dr. Staudinger for his opinion, who returned them as "perfectly unknown 

 to him, but doubtless a great aberration of some Noctua, most probably 

 N. augur." This agreed with what Mr. Mason had previously surmised. 

 He also remarked that he had the exact locality of capture well searched 

 again, but without any success. A specimen of the true A. helvetina from 

 Staudinger's collection was exhibited for comparison ; it differed widely 

 from the British examples. 



Mr. H, T. Stainton said that he thought the specimens more resembled 

 A^ xanthographa than N. augur. 



Mr. J. Sang said this was so, but upon a closer comparison these 

 specimens were seen to be more glossy and the costa was straighter than in 

 N. xanthographa ; he could faintly trace the markings of N. augur in a 

 strong light, and concurred in the opinion that it was a remarkable variety 

 of that species. 



Mr. Stainton called attention to the fact that apparently all the larvae of 

 Nematus rihesii had died in their infancy this spring ; the leaves of the 

 currant-bushes had been riddled by the young larvae, but he had not yet 

 seen a single leaf stripped. 



