47 



Stgi'., in which the wings are brownish suffused. The ground 

 colour was nowhere of the yellow of the type, but of a rich orange 

 yellow, especially on the lower wings. In all the specimens the 

 duplicated lines were much emphasised into narrow irregular trans- 

 verse bands differing in number in different specimens, from the 

 greater or lesser suppression of the rippled lines. The fine trans- 

 verse lines themselves were frequently very dark brown, almost 

 black. For comparison were shown ordinary typical forms from 

 the French Alps, with a set of somewhat dark London forms and 

 examples of (?) ab. infuscata, Gump., in which the central trans- 

 verse band is margined with fuscous more or less uniting to a 

 complete dark band in some specimens, which last form is figured in 

 South's "Moths of Brit. Isles," Ser. 2, pi. 85, fig. 6. 



Mr. Hy. J. Turner also exhibited a short series of Pontia chloridice 

 from the Island of Cyprus, where it had been rediscovered by his 

 valued correspondent Mr. G. T. Wilson, after not being met with for 

 many years. They were taken in July, 1918, a late date for the 

 species, hence their imperfect condition. The species is distributed 

 from Bulgaria, Turkey, S.E. Russia, Asia Minor, Persia, S. Siberia, 

 and Central Asia. For comparison the two other species of the 

 genus Pontia were exhibited, viz., P. dajdidice and P.collidice. The 

 specimens of P. daplidice were from the same island. This is a 

 generally distributed species throughout the Palaearctic Region, 

 except in the extreme north and in the British Isles. P. callidice 

 is the Alpine species found in the high mountains of the region 

 from the Pyrenees, Alps, to the Western Himalayas, Altai, Pamir, 

 and Thian Chan. The specimens shown were taken in the 

 Engadine by our late member Mr. A. E. Gibbs. These species 

 have always been closely associated together by our authorities, but, 

 strange to say, in Seitz' " Palaearctic Butterflies " they are distri- 

 buted in three different genera. 



The remainder of the evening was devoted to au exhibition of 

 lantern slides, the following members showing : — Messrs. W. J. 

 Lucas, A. E. Tonge, A. W. Dennis, and E. J. Bunnett. 



• . MAECR 13th, 1919. 



The decease of Mr. A. K. Ing was announced. 



Mr. Ashdown exhibited a very rare book, Borelli's " De Motu 

 Animalium," dated 1685, with some curious plates showing the 

 mechanical principles involved in the flight of birds and the founda- 



