89 



very like those of the hybrid N. zonaria g and B. Idrtaria $ . 

 The specimens were reared by Mr. G. Harrison of Birtley. 



Mr. H. Moore exhibited a specimen of Aclwrontia {Manduca) 

 atropos from South Africa, sent to him by post enclosed in a letter. 

 It was in excellent condition. It was remarked that the other two 

 species of the genus, A. sti/x and A. lachesis, were eastern in their 

 distribution. 



Mr. Curwen exhibited long series of Polyommatus eros J s and 

 Latiorina orbitulus, the former from Saas Grund, and the latter 

 from the Grisons area. Both Mr. Gibbs and Mr. Hy. J. Turner 

 had met with the two species at St. Moritz, Engadine, and the 

 latter remarked on the drinking habit of the former species, which 

 he had frequently seen rise from patches of moisture on the road 

 in small clouds as he passed. 



Mr. B. S. Williams exhibited living larvse of Odezia atiata feeding 

 on Ci/tisus, and a series of Xantlwrho'e [Melanippe) fiuctnata showing 

 much variation in ground colour, one example was very clear of the 

 indefinite markings on the ground, while at the other extreme was 

 a form approaching ab. neapoUsata. Both exhibits were from 

 Finchley. 



Mr. Cowham exhibited a number of specimens he had obtained in 

 Argentina : 



(1) Several large Psychid cases, which he stated were abundant 

 in many parts of the country on the branches of trees. (They were 

 afterwards found to be cases of Oeketicns platenais). 



(2) A large and conspicuous species of " Skipper " with a light 

 transverse band across the disc of all four wings, upper- and under- 

 sides and a brilliant red tip to the abdomen. (It was afterwards 

 found to be (JUnides pluenicola), 



(3) Specimens of Colias lesbia var. pynhothea, one of the few 

 stragglers of the genus which penetrates into the Neotropical 

 Region. Mr. Cowham stated that there was a lighter form which 

 corresponds to our ab. helice of C. ediisa but that it was quite 

 uncommon. It is known as ab. heliceoides. 



(4) An example of an Arctiid Kcpanthera indecha J . 



Mr. Step exhibited some examples of Fulgurites, the remarkable 

 tubes formed by the passage of lightning through sand, when the 

 siliceous grains become fused and form a primitive kind of glass. 

 For these specimens he was indebted to Mr. J. H. L. Atkinson, 

 H.M. Vice-Consul at Cuyaba, in Brazil. Readers of Darwin's 

 " Voyage of the Beagle " would remember his description of the 

 finding of such tubes in " a broad band of sand hillocks which 



