90 



Mr. J. A. Clarke exhibited a series of the following species : 

 — Trichiura cvatcegi, Pcecilocampa populi, Eriogaster lanestris, 

 Lasiocampa (Bombyx) rubi, L. (B.) qucrcus and var. callunce, 

 Clisiocampa (Bombyx) neustria a.nd C. (B.) castrensis, including 

 many light, dark, and extreme forms to illustrate Mr. Tutt's 

 paper. 



Mr. R. Adkin exhibited with the same object Trichiura 

 cratcegi from Gravesend and Abbott's Wood ; Pcecilocampa 

 populi from Winchfleld, Polegate, and Colchester; Eriogaster 

 lanestris from Rugby and Eynsford ; Bombyx neustria from 

 Lewisham and Abbott's Wood ; B. castrensis from Shoebury- 

 ness ; B. rubi from Arran, Northumberland, and Durham ; 

 B. qucrcus and var. callunce from Aberdeen, Yorkshire, &c, 

 one female from Lancashire being subdiaphanous ; B. trifolii 

 from the Scilly Isles, &c. ; Odonestis potatoria from Suther- 

 land, Sussex, &c. ; Lasiocampa qucrcifolia from Cambridge, 

 Hereford, &c. ; and L. illicifolia from Cannock Chase. 



Mr. Tutt exhibited series of Anthrocera (Zygccna) filipendulce 

 bred by Mr. W. H. B. Fletcher. The original parent, with 

 a tendency to the blotching of the red spots on the fore-wing, 

 came from Deal. By careful selection and inbreeding a 

 race had been obtained that exhibited in almost all the indi- 

 viduals a considerable joining of the six spots, some examples 

 having all the spots united into a large median longitudinal 

 blotch. 



Mr. J. W. Tutt read a paper entitled " The Lasiocampid 

 Moths," illustrating it by figures on the blackboard and pre- 

 pared diagrams (page i). 



Mr. J. A. Clarke related having observed the pupa case of 

 Bombyx rubi sticking partly out of the extremely long, ver- 

 tically placed cocoon, among moss and heather at Wicken. 

 He said that years ago B. castrensis was exceedingly common 

 all over Canvey Island, and fed freely on Artemisia maritima. 

 Mr. Adkin remarked on the restricted distribution of B. cas- 

 trensis and B. trifolii in this country, as compared with the 

 more general occurrence of these species on the Continent. 

 In his opinion this restriction showed that they were not 

 thoroughly established in Britain, and that the occasional 

 abundance was due to the recruiting of the species by 

 immigration. Mr. Stevens said that both B. neustria and B. 

 castrensis were much less common than formerly. The 

 latter used to be exceedingly common among Artemisia 

 maritima. Mr. Hillsworth said that larva: of E. lanestris had 

 been common recently around Laindon. 



Mr. McArthur, referring to his experience of B. rubi in 



