( Ixxxvi ) 



besides simple cutting of the substance penetrated, there must 

 also be splitting and mangling of it on a considerable scale. 

 Anything like a " scissors "-action, such as Dr. Chapman 

 has described in the case of Trichiosoma (a Cimbicid), must in 

 the present case — if it exists at all — be quite subordinate, 

 since the rows of teeth, which lie on the exterior surfaces of the 

 paired saws, cannot possibly come into contact with each 

 other, any more than those of two harrows placed back to 

 back. But I should discuss this matter with a great deal 

 more confidence, if I had ever seen the saws in actual use, 

 or even the wounds inflicted by them; and in this, as yet, I 

 have been altogether disappointed. 



Mr. E. E. Green said that he had observed the larvae in 

 myriads on small pines at Camberley, on an area of a quarter 

 of an acre, and that they were doing much damage by eating 

 off the older needles. 



A very rare Neuropteron. — Mr. G. T. Porritt exhibited 

 specimens of Sympherobius striatellus, Klap., and of S. elegans, 

 Steph., for comparison. Striatellus was differentiated from 

 elegans two years ago by Mr. Kenneth J. Morton (Entom., 

 August 1914, pp. 209-212). As yet only four British speci- 

 mens had been recorded, from Nottinghamshire, Lincolnshire, 

 and Kent ; but Mr. Porritt had no doubt that if the collections 

 of the late Mr. McLachlan and the late Mr. Alfred Beaumont 

 could be got at and examined, specimens would be found in 

 them. Judging, too, from the widely separated localities of the 

 specimens known, the species is widely distributed in Britain. 



Gynandromorphous Lepidoptera, etc. — Mr. G. Talbot 

 exhibited on behalf of Mr. J. J. Joicey : — 



(1) A gynandromorph of Papilio lycophron, race phanias, 

 R. and J., from North Peru. 



(2) Polygrapha cyanea, G. and S., the unique and hitherto 

 undescribed female, apparently a mimic of Opsiphanes. 



(3) A hybrid gynandromorph of Amorpha populi x Smerin- 

 tlius ocellatus. 



Papers. 



The following papers were read : — ■ 



" Further notes relating to the Jurinean Genera of Hymeno- 



