33 



strigosa, Fb., from Cambridge, and Eupithecia venosata, Fb., 

 which had been two years in pupa. 



Mr. Nussey exhibited a specimen of Smerinthus tilicB, L., 

 the central band on the superior wings being represented by 

 a small spot. 



Mr. West (Streatham) exhibited a similar variety of S. 

 tilicB. 



Mr. H. Robson exhibited a specimen of Zonosoma pu7ictaria^ 

 L., having a broad dark band across both the superior and 

 inferior wings. 



Mr. W. H. Tugwell exhibited a very strongly marked male 

 of Biston hirtaria, Clerck., of a yellow fawn ground colour. 

 Mr. Carrington remarked that it closely resembled the 

 Rannoch form of the species. 



Mr. R. Adkin exhibited living larvae of Larentia azsiata, 

 Lang., from the Grampian hills, and which were found feeding 

 on heather. 



Mr, R. Adkin also exhibited on behalf of Mrs. Hutchinson 

 of Leominster, small and brightly-marked specimens of 

 Herhula cespitalis, Schiff., taken at the Land's End, Cornwall, 

 by Miss Hutchinson ; it was remarked that the colour of the 

 specimens was unusually yellow. 



Mr. Winkworth exhibited three clutches of eggs of the com- 

 mon thrush Turdus niusiais, L., showing variation. He said 

 that the least strongly marked specimens had been laid first, and 

 those with markings better developed afterwards. Mr. Rice 

 remarked that it was usual that the eggs which were first laid 

 were the most strongly marked, and the markings became 

 fainter as more eggs were deposited. 



Mr. Tugwell exhibited a bunch of butterfly orchis 

 {Habenaria bifolia^ Br.), received from Mr. L. Gibb, and re- 

 marked on its delightful fragrance at night ; there were 

 generally supposed to be two species of this orchis growing 

 in this country, the small one found on boggy heaths, here 

 exhibited, and another variety growing from i8 in. to 2 ft. in 

 height, in shady places in woods on chalk, etc., the principal 

 difference being in the position of the anther cells. In H. bifolia 

 they were parallel, and in H. chlorantha these organs diverged 

 widely at the base. 



Mr. Mansbridge stated that he had seen Orchis inascula. L., 

 in Mr. Bull's nursery at Chelsea with the spike 8 in. long ; this 

 was remarkably large, and was the result of cultivation. Mr. 

 Step said that fertilization of 77. bifolia was effected by certain 

 moths, and Mr. Tugwell said he had moths in his collection 

 with pollen masses adhering to their tongues, notably some 



D 



