( lxxxvi ) 



differ from the average of other years. Dr. Dixey had 

 written the following note on the Pierinae : — - 



Pierinae captured at Durban, Natal, I>>/ C. N. Bailer. 



The dates of the captures are from July 7 to Dee. 2, 1917. 

 Mr. Barker notes that the season was abnormally wet after 

 mid-June. 



The species are Belenois gidica, Godt., and Belenois severina, 

 Cram. 



B. gidica. — One specimen, Sept. 2; two specimens, Nov. 18 

 and Nov. 30 respectively. An early September example would 

 generally be dry ; this one is wet, though with a trace of the 

 dry-season character about it. The November specimens are 

 wet, as would be expected in ordinary seasons. 



B. severina. — Four caught in July, two in August, one in 

 September, five in November, one in December. 



The July and August examples are of the full dry-season 

 form, as they would be in ordinary seasons. The November 

 and December examples have the wet-season ground-colour 

 and the dry-season veining; this is a usual condition at this 

 time of year in ordinary seasons. A similar condition was 

 produced in 1905 by Dr. G. A. K. Marshall at Salisbury, 

 Mashonaland, by exposing a brood of B. severina, which 

 would normally have emerged as the dry-season phase, to 

 artificial conditions of moisture throughout the larval and 

 pupa] stages (see Proc. Ent. Soc. Lond., 1907, p. xiii). 



On the whole, the abnormal character of the season appears 

 to have had little or no influence on these Pierines. 



Kx-German East African butterflies and their 

 relation to the seasons. — Prof. Poulton said that he had 

 received the following information, supplementing that com- 

 municated to the meeting of May 1st last (p. lviii), from 

 I he Hev. K. St. Aubyn Rogers at Kongwa : — 



" Feb. 28, 1918. 

 ; ' The wet season this year has been much less heavy than 

 last year, and the ' break ' has been much more pronounced. 

 We had heavy rain in January (about 8J in.) and the first 



