( XXV ) 



as in the larval stages, the disguising of its real nature; it 

 looks very unlike an ordinary pupa. 



Professor E. B. Poulton, F.E.S., exhibited a lantern slide 

 showing the perfect protective resemblance of Hybernia 

 hucopheseria to the oak trunk upon which it rested. 



Mr. A. Bacot exhiljited hybrid larvae resulting from a pair- 

 ing between a male Malacosoma neustria and a female M. 

 castrensis, also larvae of M. neustria and reputed larv.T. of il/. 

 /ranconiac for comparison. He said that this year's brood of 

 hybrid lai-vte had separated into two batches, the "Forwards" 

 being now nearly full fed, and from one and a half to two and 

 a half inches in length. The " Laggards " were not yet half- 

 grown, being only half to three-quarters of an inch long, in 

 this respect exactly following last year's brood resulting from 

 a similar cross, in which case the " Forwards" produced only 

 female specimens, while the " Laggards " produced only males. 



Papers, etc. 



Mr. H. J. Elwes, F.R.S., read a paper on " The Butterflies 

 of Chile," and exhibited a selection of the specimens he had 

 taken during December, January and February in that country. 

 He pointed out that the number of species of butterflies found 

 in Chile was extremely small considering the large area, varied 

 physical and meteorological conditions, and rich flora of the 

 country. He accounted for this by the fact that the climate 

 and condition of the land areas bordering Chile had prevented 

 the immigration of neotropical species fi'om the north. He 

 described briefly the great dilference in the rainfall of the 

 country south of Conception, which causes South Chile to 

 be almost entirely a forest country, whilst Central and North 

 Chile is so arid that cultivation is carried on almost entirely 

 by irrigation. The endemic species of Satyridse and Hesperidse 

 constituted about two-thirds of the whole butterfly fauna, 

 Nymphalidse and Lycsenidaj being very few in numbers. Some 

 butterflies of Holarctic types, such as Colias vautieri, had an 

 extremely wide range and extended with little variation right 

 down to the Straits of Magellan. Among the most remarkable 

 species which he showed was the unique Satyrid, Argyrophorus 

 argenteus, the upper side of which is of a brilliant metallic 



