85 



Mr. Leonard Tatchell exhibited a photograph of a gynandro- 

 morph of Aworpha popiili, bred June -ith, 1920, from a Wanstead 

 larva. Right side male left side female, fore and hindwings of 

 male pair larger than the female pair, rufous tornal markings on the 

 male side much suffused, all the margins strongly crenulate. The 

 outstanding feature is the precision with which the sexes are 

 arranged on either side of the median line. The antennae and legs 

 retain their respective sexual characters. Also larvae of Dysstrotiia 

 {Cidaiia) trnncata from Devon ; a male Sphinx ligtistri, which had 

 paired with a female Smerinthus ocellata, with a batch of resulting 

 unfertile ova. 



Mr. K. G. Blair, on behalf of Dr. C. J. Gahan, exhibited a larva 

 of a Neiiioptera sp. from Syria (near Rehoboth), " Always found in 

 dens, on sand, together with grey ticks called in Arabic ' Delm 

 (J. Aharon i). 



Mr. F. D. J. Jackson exhibited a curious gynandromorph of 

 Coxnwtriche potatoria, bred in 1911 from an Oxford larva. The 

 body was ^ , the antennae 2 , the general coloration 5 with streaks 

 of ^ colour on the upperside left forewing, the underside being 

 wholly (J in colour. 



Mr. F. W. Edwards exhibited a male and a female of the rare 

 British gnat Oithopodonn/ia pitlrhripal/)is, reared from larva3 found 

 in water in a hollow beech in Epping Forest, July, 1920. 



Mr. R. J. Bowman exhibited a series of the forms of Cosy)iibia 

 pendularia and C. pendularia var. sitbroseata, extreme forms, several 

 showing distinct white spots along outer edge of marginal bands. 

 Also C. pendularia var. niuro-siibroseata in varied series : (a) 

 examples with heavy white striation in marginal bands; (b) examples 

 heavily suffused with white over whole wing areas ; (r) purple black 

 examples with very definite white lines and broad white fringes; 

 {d) an example in which the inner white lines are deleted ; («) an 

 example in which the inner and outer white lines are deleted and 

 the wing areas suffused; (/") a unique aberration, in which all 

 markings are completely missing, with the exception of faint white 

 spots in the central areas of the wings — all wings entirely covered 

 with black scaling — black fringes ; ((/) two examples with bleached 

 hindwings. 



