( viii ) 



Exhibitions, etc. 



Dr. D. Sharp exhibited preparations of Dytisciis latisshniis 

 and Cijhiater roeselH, to show the so-called secondary wing, 

 noticed by Meinert. He stated that this structure is only a 

 part of the elytron, to which it is extensively attached, and 

 that he considered that it corresponded with the angle at the 

 base of the wing seen in so many insects that fold their front 

 wing against the body. He could not consider that this 

 structure afforded any support to the view that the elytra of 

 beetles correspond with the tegulae of Hymenoptera rather 

 than with the front wings. He also exhibited specimens of 

 Neuroptera, and pointed out that this secondary wing agreed 

 in position and structure with a small lobe on the front wing 

 of Kaphidia. Mr. McLachlan, Prof. Meldola, and Mr. Gahan 

 made some remarks on the subject. 



Mr. C. G. Barrett exhibited, for Dr. H. G. Knaggs, cells of 

 Retinia resinana formed of resin but lined with wax. A 

 portion of the cell had been removed and the resin dissolved 

 away with spirit, leaving a slight film of wax {cf. Ent. 

 Mo. Mag., Nov., 1895, pp. 251, 252). Mr. Tutt stated that a 

 secretion of wax had been detected by Dr. Chapman in Par- 

 nassius cqwllo. Prof. Meldola suggested that as Dr. Knaggs 

 had shown how to separate the resin from the wax it would 

 be of interest to make a chemical investigation of the latter, 

 since a sufficient supply of this material could easily be 

 obtained. No insect wax, with the exception of that of the 

 bee, had been submitted to investigation by chemists. 

 Mr. Hampson and Mr. Blandford continued the discussion. 



Mr. Gahan exhibited drawings of the specimen of Di/scritina 

 lonf/isctoso , which was shown by Mr. E. E. Green at the last 

 Meeting of the Society, and pointed out that these drawings 

 confirmed the view which he then expressed as to its affinities. 

 Except as regards its caudal appendages the insect had, he 

 said, all the characters of an earwig. He regretted that no 

 drawing, showing the ventral surface, had yet been prepared 

 by Mr. Green. Mr. McLachlan, Dr. Sharp, and Mr. Green 

 made some remarks on the subject. 



Mr. B. A. Bower exhibited specimens of Anjijresthia 



