260 THE ENTOMOLOGIST. 



Emmelesia unifasciata, Haw. — In September, 1872, my 

 friend Mr. F. O. Standish kindly sent me a number of larvaj 

 of this species. I put them into a pan which had silver sand 

 *at the bottom about three inches deep, and fed them with the 

 seed-vessels of the red eyebright (Euphrasia Odontites). In 

 August, 1873, about a dozen moths appeared, and in August 

 this year three or four more. A few days since I examined 

 all the cocoons, and found thirty-seven living pupae. Of 

 course no more of the perfect insects will emerge till August 

 next year, and it is impossible to say how long some of them 

 may remain in the pupa state. I believe this uncertainty of 

 the time in which many species of Lepidoptera remain in the 

 pupa state will, in a great measure, account for the abundance 

 of certain species in some years, and their scarcity in others. 

 — Henry Doiihleday ; Epping, October 13, 1874. 



Sterrha sacraria, Xyluia conformis, 8^c., near Neath. — 

 The following captures may be interesting to you : — In the 

 spring of this year Xylina conformis and Brephos Parthenias, 

 near to our locality ; and in the autumn several specimens of 

 Plusia Festucae, a fine variety of Agrotis saucia, several 

 specimens of Epunda nigra, one of Sterrha sacraria, and one 

 of Hoporina croceago, — John T. D. Llewelyn; Ynisygerivn, 

 Neath, October 17, 1874. 



Death of Mr. Walker. — It has become my painful duty to 

 record that Francis Walker, the most voluminous and most 

 industrious writer on Entomology this country has ever 

 produced, expired at his residence. Elm Hall, Wanstead, on 

 the 5th of October, 1874, sincerely lamented by all who 

 enjoyed the pleasure and advantage of his friendship. He 

 was the seventh son, and the tenth and youngest child, of 

 Mr. John Walker, a gentleman of independent fortune, 

 residing at Arno's Grove, Southgate, where the subject of 

 this memoir was born on the 31st of July, 1809. Mr. Walker 

 — the father — had a decided taste for science, especially 

 Natural History: he was a fellow of the Royal and Horti- 

 cultural Societies, and vice-president of the Linnean, so that 

 his son's almost boyish propensity for studies, in which he 

 afterwards became so eminent, seems to have been inherited 

 rather than acquired. 



Mr. Walker's decided talent for observing noteworthy facts 



