137 



(■32 to "41 grammes). They were probably drier than when brought 

 to the surface. Six of the wasps were captured and weighed 

 immediately after death, and their average weight was '076 grammes. 

 The average weight of the thirty stones was -347 grammes, and, 

 therefore, was 4-5 times the average weight of the wasp. Similar 

 observations were made by him on a colony of Vespa vulgaris, and 

 it was found that in the case of that species the average weight of 

 these stone nodules was 3-7 times the average weight of the wasp, 

 a difference, no doubt, due to the wing area of the last-named 

 species being less than that of the first. 



Mr. A. W. Buckstone, on behalf of Mr. T. Archer, exhibited a 

 bleached form of Anf/crona prunaria, male, captured at Oxshott, 

 June 28fch, 1913; a form of Biipaliis piniaria, male, showing a very 

 slight yellow colouring on the forewings and an almost complete 

 absence of yellow on the hindwing, captured at Oxshott, June 23rd ; 

 and an Acidalia, female, which no member present was able to 

 identify with any certainty. Messrs. Adkin and Newman were of 

 opinion that it was a form of A. bisetata. It was captured at 

 Oxshott. 



Mr. H. Worsley-Wood exhibited the following sets of MelUnia 

 (Xanthia) ocellaris taken in the Thames Valley, in 1911 and 1912. 

 Five typical specimens with an example of M. f/ilvatjo for com- 

 parison. Four ab. lineaf/n. — This is the usual form in England. 

 The specimen with the five clearly marked dots on the sub-terminal 

 is apparently of great rarity. Three ab. intermedia. — There seem 

 to be no records of the capture of this form, but examples were 

 bred together with both the preceding forms from an ocellaris, 

 female, in 1911. He also showed lead coloured males and dwarf 

 examples of Ai/riaik's thetis (bellari/as), from near Corfe, August 

 1911, with two yellow Brephos parthenian, from Wimbledon, 1912 

 and 1913. 



The Eev. J. E. Tarbat exhibited two aberrations of Brenthis 

 euphrosyne, from Fareham, one suffused generally and the other 

 with some of the black spots merged to form a band; a i'aniom/nipha 

 tipJion [darns), from Braemar, with right upperwing malformed ; 

 dark forms of Abra.ras grossidariata, bred, from St. Annes-on-Sea 

 and Huddersfield, those from the latter place being referable to ab. 

 niijro-sparsata, the forewings only being entirely black with the 

 exception of small white spots at the inner angle; and a Cidaria 

 trnncata {ritssata) with a dark, broad central band on the upper- 

 wings. 



Mr. E. L. Haynes exhibited a series of hybrids from Sclenia 



