( lviii ) 



1 $ Agrias narcissus from French Guiana. He said that 

 from the time Staudinger described the species in 18i>2 till 

 now, the insect had remained very rare and little known. 

 which in the case of such a conspicuous species was remark- 

 able. Outside French Guiana specimens had been taken in 

 Surinam and at Obydos on the Amazon, but it now appeared 

 as if French Guiana, from whence the species was originally 

 described, was the real home of this gorgeous insect. 



Androconial Scales in Sawflies. — The Rev. F. D. 

 Morice exhibited three photographs showing scales appar- 

 ently of an androconial nature in Australian sawflies of the 

 genus Perga. 



Prof. Poulton, Dr. Dixey, Mr. Bethune-Baker. the 

 President and Dr. Longstaff discussed the function of 

 androconia generally, the latter speaking especially of their 

 probable association with scent, especially in the Lycaenidae. 



Observations on the seasonal forms of butterflies, 

 etc., in ex-German East Africa. — Prof. Poulton said that 

 he had received the following interesting letter from the 

 Rev. K. St. Aubyn Rogers, written at Kongwa, 20 miles 

 N.N.W. of Gulwa Station on the Central Railway, due W. of 

 Zanzibar, and about 200 miles from Dar es Salaam. High 

 hills lie to the south between Kongwa and the railway. 



" Jan. 14. litis. 



" I am quite sure that the seasonal forms of butterflies 

 would repay a good deal more research than they have yet 

 received. It is a very curious thing that the food-plant of 

 Belenois severina, Cram., etc., grows freely in the dry season, 

 but it is even more surprising that it does not make Eresh 

 growth in the wet season. Moreover, this bush is also tlie 

 food-plant of Teracolus en's. King, as I have seen this species 

 ovipositing on it at both seasons. Now T. eris is abundant 

 here, and its seasonal forms are quite distinct and follow the 

 seasons as every properly constituted butterfly should do, so 

 that in its case larvae feeding on old leaves produce a wet 

 form and those on young leaves dry forms ! ! 



" Our rains here began at the end of November and we 

 had heavy thunderstorms on the 23rd and 27th. We had 



