( Ixxxi ) 



{Cyclosa conica). This Dipteron at rest closely imitated the 

 Li(ffia cases, and Mr. Whittle remarked, " When I saw it at 

 rest on a green fence, wings closed and abdomen directed sky- 

 wards, it quite deceived me." Dr. Chapman observed that 

 this syncryptic resemblance of these three forms suggested a 

 doubt of the distinction Prof. Poulton draws between syn- 

 cryptic resemblance and mimicry, so far as this instance went, 

 since the resemblance was not merely one of coloration, but 

 also of size and form, leading to some suspicion of mutual 

 advantage, i. e. of actual mimicry, though what the advantage 

 might be he was too ignorant of the enemies of these species 

 to guess. 



A NEW Aberration of Euxoa corticea. — Mr. G. Meade- 

 Waldo exhibited a new aberration of Euxoa corticea, Hb., 

 taken in his hght-trap at Hever, Kent, in July ; the specimen, 

 known as ab. obsoleta, shows only the faintest trace of the 

 orbicular and reniform stigmata, which are generally so well 

 developed in this species. 



Proportions in Mongrel Families. — Mr. L. W. Newman 

 exhibited a very long and varied series of Aplecta nehulosa and 

 its varieties ab. robsoni and tliomfsoni and intermediate forms. 

 A pairing was obtained in 1914 from male and female both of 

 the robsoni form, about 400 ova were laid, of which over 350 

 were successfully reared to the imago, and the percentages are 

 as follows : — robsoni (including intermediates) 50 %, typical 

 specimens 26 %, thompsoni 24 %. Also a series of Boarmia 

 repandata var. conversaria, from a pairing obtained between a 

 typical light Hunts ? crossed with a conversaria <S. A large 

 percentage of the brood were reared and every specimen pro- 

 duced var. conversaria and every one a ?, which was a most 

 remarkable resvilt. 



A new Coccid. — Mr. E. E. Green exhibited specimens and 

 drawings of a new British Coccid. discovered at Camberley 

 upon grasses in uncultivated meadows. Mr. Green remarked 

 that the new species is referable to Signoret's genus Fairmairia 

 (now known as Parafairmairia), at present represented by a 

 single European species {F. bipartita). 



Remarkable Hymenoptera.^ — The Rev. F. D. Morice 

 exhibited : — 



PROC. ENT. SOC. LOND., Ill, IV, 1915. F 



