18%., 143 



on Fridaj, May let, 1896, at the rooms of the Hon. Librarian, 57, Trumpington Street, 

 the President, Dr. Sharp, F.R.S., in the Chair. 



Mr. Brown, F.E.S., exhibited some interesting specimens from Australia, including 

 a mimetic insect, Tenodora aridifolia, and some of the remarkable structures formed 

 by the basket worms, or caterpillars of the Psychidm, some of which were formed 

 from portions of leaves woven into a sort of cocoon, while another was a structure 

 of considerable strength, formed by fastening together pieces of twigs cut by the 

 insect to suitable lengths ; also some cocoons of Cimbex upon twigs of the white- 

 thorn found near Cambridge, where the insect is common. Mr. Turner (Pembroke), 

 some larvae of Bombyx trifolii. Mr. Paton (Queen's), a specimen, believed to be a 

 hermaphrodite of Spilosoma lubrioipeda. Dr. Sharp, some pupae of Hepialus. The 

 President read a paper upon the " Structure and Development of the Lepidopterous 

 wing" {vide ante p. 137). — C. J. Wilkinson, Hon. Secretary. 



Entomological Society of London : May 6tk, 1896. — Prof. Raphael 

 Meldola, F.R.S., President, in the Chair. 



Mr. Percy Evans Freke, of Step House, Borris, County Carlow, Ireland, was 

 elected a Fellow of the Society. 



Mr. Champion exhibited specimens of Amara famelica, Ziniin., from Woking, 

 Surrey, a recent addition to the British list ; he also exhibited, on behalf of Mr. 

 Dolby-Tyler, a series of Eburia quadrinotata, Latr., from Guayaquil, Ecuador, 

 showing variation in the number of the raised ivory-white lines on the elytra, there 

 being sometimes an additional mark exterior to the short basal line and sometimes 

 an additional one on the inner side of the second line. Mr. Gahan said he did not 

 notice anything remarkable in the specimens, except in the arrangement of the spots. 

 Mr. Horace Donisthorpe exhibited a specimen of Pterostichus gracilis with thi-ee 

 tarsi on one leg, taken near Weymouth last month. Mr. Gr. T. Porritt, a series of 

 Arctia menthastri which he had just bred from Morayshire ova, the ground-colour 

 of the specimens varied from the usual white, through sliades of yellow, to dark 

 smoky-brown. Mr. Merrifield, specimens of Oonepteryx rhamni bred from larvae 

 found in North Italy and Germany, the pupae of which had been subjected to various 

 temperatures ; he said that high temperature appeared to cause an increase of yellow 

 scales in the female, and low temperatures generally reduced the size of the orange 

 discal spot on the fore-wings of both sexes; he also exhibited some bred specimens 

 of species of Vanessa, the result of experiments tried with a view to ascertain the 

 extreme of high temperature that the pupae would bear, and its results. The species 

 shown included Vanessa Atalanta, V. urticce, and T''. Antiopa. Mr. Merrifield said 

 that the effects on the imago produced by temperature were being made the subject 

 of systematic researcli by Professor Weismann, Dr. Stand fuss, Mr. E. Fischer, and 

 others. Mr. Elwes asked if these experiments had been made on pupae only or on 

 the larvae as well. Mr. Merrifield said that the results were only noticeable when 

 the experiments were made on pupte ; the effect of them on larvae was not apparent. 

 Mr. Kirkaldy exhibited and made remarks on ova of Notonecta glauca v&r.furcata. 

 Mr. Tutt, living larvae of .Apnmea ophiogramma, together with the grass on which 



