( xl ) 



from eggs laid by a single female. Great difficulty was 

 experienced in finding a photographic plate which registered 

 the effects satisfactorily. Eventually Edwards' isochromatic 

 plates were found to give good results : a magic lantern with 

 a paraffin lamp was used for illumination, the beam of light 

 being passed through a slifcet of yellow glass. An exposure 

 of one minute was given. Mr. Poulton said he was indebted 

 to the Eev. J. G. Burch for assistance in obtaining the 

 photographs exhibited. 



Mr. F. Merrifield said that Dr. Chapman had recently 

 obtained similar results from experiments made with the 

 larvfe of Ennomos alniaria. 



The Eev. Dr. Walker exhibited, and read notes on, a 

 number of Coleoptera, Neuroptera, Hymenoptera, andDiptera, 

 which had been named since the last meeting, and formed 

 the second instalment of the collection which he had recently 

 made in Iceland. 



Mr. R. South exhibited an aberrant specimen of Luperina 

 testacea, bred from a pupa found at the root of a species of 

 Silene at Eastbourne ; and a pale specimen of Lvperina 

 Nickerlii, Freyer, caught in Lancashire last August by Mr. 

 Baxter. He also exhibited a long and interesting series of 

 Boarmia repandata, the offspring of parents bred from larvae 

 collected in North Devon, and read the following notes on 

 them : — 



" On the evening of June 20th, 1888, three male and two 

 female specimens of the conversaria form of Boarmia repandata, 

 and also one female variety of the destrigaria form, had 

 freshly emerged in their breeding-cage. These were allowed 

 to remain undisturbed until the following evening, when they 

 were removed to a leno-covered box, and left therein until the 

 morning of the 22nd, when the females were each placed in a 

 large-sized chip box. On the morning of the 23rd it was 

 noted that each female had deposited a small cluster of eggs 

 on the side or bottom of her box ; other batches of eggs we^e 

 deposited on the 24th and 25th. The ova soon changed from 

 green to pink, and subsequently to dark grey ; a few larvae 

 made their appearance on July 1st, and on the 8th of that 

 month all had hatched out. 



