( Ixxiv ) 



Wednesday, June 2nd, 1915. 



The Honble. N. Charles Eothschild, M.A., F.L.S., F.Z.S., 

 President, in the chair. 



Election of a Fellow. 



Dr. A. B. NoRTHCOTE, Blenheim House, Monkgate, York, 

 was elected a Fellow of the Society. 



Exhibitions. 



Larvae of Agriades escheri. — Dr. Chapman exhibited 

 some full-fed larvae of Agriades escheri bred from the egg. 

 They were of the Pyrenean form (var. rondoiii), which is smaller 

 and less heavily marked than the central European form. 

 The larva is also smaller and paler. As distinguished from 

 other similar larvae of blue butterflies {Polyonunatus and 

 Agriades), perhaps the most definite points are the brightness 

 and especially the narrowness and definition of the yellow 

 lateral line, and the absence, or all but absence, of the dorsal 

 yellow lines. The colour of the hairs distinguish it from 

 P. icarus and A. thersites, which otherwise it perhaps most 

 nearly resembles. 



Variation in Ornithoptera alexandrae. — Mr. 0. E. 

 Janson exhibited specimens of Ornithoptera alexandrae selected 

 from a series to show the extreme variations in the wing- 

 markings; also a female example of Morphotenaris kenricki; 

 all from New Guinea. 



Method of breeding Psocidae, etc. — Mr. C. B. Williams 

 exhibited a method of breeding Psocidae and other small 

 insects which feed on fungi, etc. It consists of a large 

 test-tube with a constriction near the base ; the lower compart- 

 ment was partly filled with water and the constriction plugged 

 with absorbent cotton-wool; in the upper part the medium 

 on which the fungus is growing (bran, potato, wood chips, 

 etc.) is placed, and finally the mouth of the tube is also plugged 

 with cotton- wool. The water in the lower chamber keeps 

 the upper one sufficiently moist for fungus and insect life 

 without any condensation on the glass. The tube shown 



