105 



absent except the discoidal in each wing. All four wings were 

 heavily striated with white. 



Mr. Brooks exhibited specimens of the introduced floating water- 

 plant Azulla caroliniana from Enfield. Some years ago it was 

 reported as being found in ponds in the neighbourhood of 

 •Chigwell. It is a Rhizocarp not far removed from the ^larsiliacea. 



Mr. Hugh Main exhibited a stereoscopic picture of the stag- 

 beetle, Lucanus cerviis, taken shortly after pupation. 



Mr. Frohawk exhibited drawings by himself of two remarkable 

 aberrations of British birds ; a specimen of the Curlew from 

 Caithness in which the markings were both strongly melanic and 

 strongly albinistic, and an example of the Lapwing which was pure 

 white with the exception of the breast. It was noted that although 

 lapwings were extremely abundant, very little aberration of 

 marking had been noticed. 



Mr. Hy. J. Turner exhibited a collection of specimens arranged 

 to show the genus Paraii/e in its most extended sense, and in the 

 same order as they are placed in the National Collection, to 

 illustrate his paper, " The Genus Paranje, Hiib.," which he then 

 read. (See page 7). 



Mr. Frohawk reported that he had just received a letter from 

 Ireland announcing that on October the 20th a specimen of Anmia 

 plexippiis had been captured in Co. Cork. So far as he knew this 

 was the first Irish specimen of this species. There were now he 

 believed some 30 British specimens of which nine had been met 

 with m Cornwall. In answer to a question as to its flight by 

 night, Mr. Frohawk said that there was no direct evidence of it, 

 but that it must do so, as to cross the Atlantic in a "day was quite 

 impossible. He noted that many species flew by night in their 

 migration, and specimens had been seen to float on the water and 

 even to rise from it to continue their flight. The stages of the 

 species were so extremely short that neither ovum, larva nor pupa 

 could be brought over, nor was there the special food-plant 

 available to sustain the larva. 



Mr. Curwen asked the opinion of members as to whether they 

 considered this migration to be voluntary or a matter of com- 

 pulsion from the force of the wind. Some years ago he had 

 noticed Pyraineis cardni in some numbers strenuously endeavouring 

 to stand against the wind, which was blowing strongly from the 

 low clifls, apparently not wanting to go but compelled to by the 

 wind force. 



