( viii ) 



same locality in a state of nature. M. Wailly states, in a paper lately 

 published in the ' Journal of the Society of Arts,' that the male Pernyi 

 paired readily with the female Roylei, and that the hybrid larvae (which he 

 describes) proved much more easy to rear than those of A. Roylei, with 

 which he had but little success. 



" AU the hybrids hitherto obtained were females, and therefore, although 

 they laid some large brown eggs, of a slightly oval shape, somewhat flattened, 

 and with a depression on the upper surface, these were of course unfertilized, 

 and no experiment could be made as to whether the race would perpetuate 

 itself. [M. Wailly has since obtained males.] 



"The hybrid before me expands just six inches across the wings, which 

 is about the size of large female examples of the two parent species. It is 

 of a greenish-buff colour, nearly as in the female of Roylei, but much clearer, 

 and with a distinct tawny shade, especially within the common band ; the 

 body and base of the wings are also suffused with a distinct vinous shade 

 more resembling Pernyi than Roylei; the shape of the wings also agrees 

 better with A. Pernyi. On the other hand, the eyes resemble those of 

 Roylei, but are considerably larger, the pupil especially being as large as in 

 Pernyi, but the projection of the black outer rim, so conspicuous in Pernyi, 

 is scarcely indicated. The other markings of the wings are well defined, 

 and resemble those of A. Roylei. On the under surface the insect agrees 

 in colour and markings with typical Roylei, but the basal band is less 

 distinct and perhaps less waved, and the submarginal black spots, dusted 

 with white and pink, are larger and more distinct. Just inside these is a 

 very faint dark stripe, more distinct on the right wing. In Roylei this is 

 still more indistinct, whereas in Pernyi it is well marked, but closer to the 

 spots. The antennae and body of the hybrid are more like A. Pernyi than 

 A. Roylei. The cocoon is fully as large as that of Roylei, but instead of 

 there being a considerable space between the outer and inner cocoon there 

 is scarcely any interval between them. ^4. Pernyi has a similar but much 

 smaller cocoon ; and hence it would appear that that of the hybrid would be 

 of greater commercial value than either." 



The specimen with its cocoon, also cocoons and images of the two parent 

 species, were exhibited. 



Miss E. A. Ormerod exhibited a curious abnormal growth of the flowers 

 of the common ash [Fraxinus] from Osterley Park. 



Mr. Fitch said this gall was the work of Phytopti, and referred to 

 Dr. Franz Low's description and figure (Verh. z.-b. Ges. Wien. xxviii. 134, 

 pi. ii. fig. 2). 



Mr. Fitch also wished to draw the attention of the members to an 

 unknown woody, irregularly spherical, gall on the ash-keys, of which he 

 once received two specimens from the late Mr. F. Smith ; one which he 

 opened contained a fat, white, apparently curculioiiideous, larva. 



