260 THE ENTOMOLOGIST. 
Emmelesia unifasciata, Haw.—In September, 1872, my 
friend Mr. F. O. Standish kindly sent me a number of larve 
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 (Kuphrasia 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 pupe. 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 Doubleday ; Epping, October 12, 1874. 
Sterrha sacraria, Xylina conformis, §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 Festuce, a fine variety. of Agrotis saucia, several 
specimens of Epunda nigra, one of Sterrha sacraria, and one 
of Hoporina croceago.—John T. D. Llewelyn ; Ynisygerwn, 
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 8lIst 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 
