56 



MAY 22nd, 1919. 



Mr. Ashdown exhibited the beetle, Ptinus sexpinictatus, which he 

 occasionally found on his windows ; also Attagenus pdlio, with sup- 

 plementary spots, and two specimens of Hijlobiiia abietis, showing 

 difference in size, which was not necessarily sexual. 



Dr. Chapman exhibited two living female specimens of Tnjpo- 

 dendron domesticum, taken on 21st inst., at Netley Heath. They 

 were burrowing perpendicularly for oviposition, into a large branch 

 of ash from six to twelve inches through, that had fallen last 

 winter. The females alone burrow. Most of them had gone not 

 only through the bark, but some distance into the wood, and in the 

 absence of proper weapons were out of reach. Those shown had 

 only reached the wood, and so were captured more easily. The 

 species is reputed to be found in rotten W'Ood, but like practically all 

 these Scuhjtiihv they really live on wood still containing sap, or more 

 likely on the fungus material it supports ; and so there is no rotten 

 wood until the young beetles have left. 



Mr. Bunnett exhibited the nut weevils Balanin-.is vennsHu, B. 

 turbatns, and grey varieties of both species, from Keston. Also 

 jSlegatoma undata, a rather rare beetle, from Catford. 



Mr. H. J. Turner exhibited a female specimen of Culias ediisa, 

 from Cyprus, in which there were at the base of each forewing two 

 blob-like dusky patches extending about one-third along the wing. 

 He also showed undersides of Pontia daplidice. 1. Having wholly 

 green markings on the hindwing, Catania, March. 2. Green mark- 

 ings edged with yellow, Catania, May. Ji. Very yellow markings, 

 Cyprus, May. 4. Markings faint and obsolescent towards inner 

 margin and base, Cyprus, June. 5. Markings green, yellow, and 

 rich orange. 



Messrs. R. Adkin and W. West exhibited a number of the insects 

 mentioned in Mr. B. W. Adkin's paper as being injurious to trees. 



Mr. Edwards exhibited a large diagram illustrating the structure 

 and life-history of the beetle Hi/lesimts piniperda. 



Mr. Main exhibited lantern slides showing details of various 

 insects destructive to timber, including Prionns coriarius, Liuanns 

 cervKS, Aroniia )iioschata, XeinatKs ericlisoni, etc. 



Mr. B. W. Adkin then read his paper on " Insects Injurious to 

 Forestry." (See page 8.) 



In the discussion which took place several members referred to 

 the gross negligence of the authorities, during the recent extensive 



