1918.1 187 



Dicrajitira vinula feeding on Aspen, and stereoscopic slides. Mr. K. G. Blair, 

 various early stag-es of the mosquitoes Ayiopheles maculipennis, A. bifurcatus, 

 and Cule.v pipiens, of the wasp Odynerus spinipes, of the beetles Lema melanopa 

 and the two sexes of Pt i linn s pecfmico mis, and, on behalf of Mr. F. W. Campion, 

 the rare beetle Gnorimus nobilis, from Ealing. Mr. H. Moore, a living Au(/iades 

 sylvantis, and seasonal forms of the American Papilio marcellus {(ijav) — the 

 spring form, and form telamonides, the late spring form, a transition to 

 leconfei {marcellus), the summer form. Mr. Ily. J. Turner, a melauic specimen 

 of Alsophila aescularia from Mansfield, and Pyrameis atalanta, with pale red 

 bandf", from W. Cornwall and Ireland. Mr. F. \V. Frohawk, the rare Trichius 

 fasciatus (Coleopt.) from S. Wales, a male Euvanessa antiopa from N. Britain, 

 a series of female P/er?s brassicae showing gradation in the development of a 

 baud on the fore-wings, one example having a black spot on the hind-wing. 

 Mr. Lachlan Gibb, the very rare yellow form of Pieris rapae from Canada. 

 Mr. Neave, a partially banded Pieris brassicae, bred from Nasturtium. 

 Mr. Simms, larvae of Riiralis bctnlae and Strymon pruni, Mr. Edwards, a 

 Calosoma sycophanta from Epping Forest. 



June 21th, 1918.— The President in the Chair. 



Mr. Moore exhibited for Mr. Cooke, living Tortrix viridana, which had 

 emerged from a mass of pupae taken from the throat and stomach of a dead 

 jay. Mr. Priske, the rare blue form of the beetle Calosoma inquisitor, the egg- 

 mass of the water-beetle HydropJiilus piceus beneath a Potamogeton leaf, and 

 pointed out the " mast." Mr. Neave, an extremely pale brown form of 

 Hesperia malvae, and an example of Polyommatus icarus ab. icarinus. 

 Mr. Sperring, aberrations of underside in Agriades thetis from Cuxton, one with 

 unusually dark and well-developed submarginal spots, another with somewhat 

 sagittate spots, and another deficient in the basal spots. Mr. Main noted that 

 Ptychopoda (Acidalia) aversata male rested on the four front legs with the 

 hind legs extended backwards. Mr. Turner exhibited for Dr. Chapman a larva 

 of the W. American Oryyia, O. vetusfa, from California. Mr. B. W. Adkin, 

 for Mr. E. B. Kershaw, an example of Lycaena arion with all markings absent 

 except the discoidal spot and the marginal spots, also a specimen of the Hong- 

 kong butterfly Clerome eumetis, belonging to the Morphinae. The rest of the 

 evening was devoted to the exhibition and d\sc\\BB\o\\oi Ematurya atomaria. 

 Mr. R. Adkin exhibited series from many parts of the British Isle.«, including 

 a unicolorous dark brown male from Epping Forest, and the Lancashire 

 dark form. Mr. B. W. Adkin, races from many southern localities and a 

 blackish-brown race from Durham. Mr. Aalidown, series from Surrey, with 

 the yellow Swiss form for comparison. Mr. Eeeds, series from the Midlands, 

 one having a bright yellow ground. Mr, Burnett, pale examples from the 

 Fens, and various series from the Surrey hills. Mr. H, J. Turner. British 

 forms, and a series from various places in France, Italy, Switzerland, and 

 Germany, showing the strong sexual divergence in colour in the former series 

 and the strong sexual convergence in colour in the latter series. He then read 

 a paper dealing with the named forms, and summarised the lines of variation. 

 — Hy. J. TuiiN Fit, Hon. Editor of Proceedings, 



