THE YOUNG NATURALIST. 



159 



length of their lives, for I have had them while they grew from tiny individ- 

 uals to immense large ones, which they did in rather over twelve months. I 

 fancy their length of life is from eighteen months to two years at the outside. 

 But although we would fain linger and investigate marine life in August, we 

 must now terminate our ramble for the present. 

 Cambridge. 



REPORTS OF SOCIETIES. 



ENTOMOLOGICAL SOCIETY OF LONDON. 



July teh, 1888. — Dr. David Sharp, F.L.S., President, in the chair. Mr. 

 Walter de Eothschild, of Tring Park, Tring, Hertfordshire, was elected a 

 Fellow of the society. 



Mr. Enock exhibited male and female specimens of a spider received from 

 Colonel Le Grice, K.A., who had captured them at Folkestone on the 27th 

 May last. They had been submitted to the Bev, O. Pickard-Cambridge, 

 F.E.S., who identified them as Pellenes tripunctatus, a species new to Britain. 

 Mr. Enock also exhibited specimens of Merisus destructor (Riley), an Ameri- 

 can parasite of the Hessian Fly, bred from British specimens of that insect. 



Mr. Wallis-Kew exhibited a number of larvae of Adimonia tanaceti (Fab.), 

 found in Lincolnshire, feeding on Scabious. 



Mr. Porritt exhibited a number of variable specimens of Arctia mendica, 

 bred from a batch of eggs found last year on a species of Bumex at Hudders- 

 field. Mr. Porritt said that this species, in the neighbourhood of Huddersfield, 

 was often more spotted than the typical form, but he had never before seen, 

 anything approaching in extent the variation exhibited in these bred speci- 

 mens. Out of forty-four specimens (twenty-five males and nineteen females) 

 not more than eight were like the ordinary type of the species. 



Mr. M'Lachlan exhibited a quantity of Palingenia longicauda (in alcohol) 

 from Holland— the largest of the European Ephcmeridce (May-flies), and at 

 the same time one of the most local. 



Mr. Jacoby exhibited the following species of Phytophagous Coleoptera 

 from Africa and Madagascar, recently described by him in the Transactions' 

 of the Society, viz. : — Lema laticollis, Cladocera nigripennis, Oedionychis 

 madagascariensis, Blepkarida intermeda, B. nigromaculata, Chrysomela mada- 

 gascariensis, Sagra apaca, Blephrida ormticollis, B. laterimaculata, Meso- 

 donta sulmetallica, Schematizella viridis, Spilocephalus viridipennis, Apophylia 

 maragdipennis, Aethonea variabilis. 



