Xxili_) 
Mr. J. W. Turr exhibited for Dr. Riding a series of 
Zonosoma annulata, Schulze, with its aberrant forms obsoleta 
and biobsoleta. He said that the form of this species with the 
ring on the forewings absent was first taken some years ago 
by D’Orville at Alphington, about twelve miles from Buckerell, 
where the specimens exhibited were captured or bred, During 
the last seven years Dr. Riding had twice netted the aberra- 
tion without the black ring on the forewings, and in each 
year since 1895 he had bred one or more similar examples, ten 
in all, from larvee collected in the autumn, or their progeny. 
In September, 1897, larvee were obtained, which pupated, 
and produced imagos in May, 1898, five, all males, being of 
the form obsoleta ; three others had the ‘‘omicron” very in- 
distinct ; four were transitional between the latter form and 
the type with a well-defined ring. The aberrations equalled 
7 per cent. of the brood. Three also had the rings on the 
hindwings ill-developed. The form with the “ omicron” 
absent on the forewings had been named obso/eta, and that 
with it absent on both fore- and hindwings biobsoleta (Ent. 
Rec., x, p. 239). Three males of the May aberrations were 
paired with normal females on May 7, 8 and 11. Ova laid, 
hatched May 20, pupated by June 23, the imagos appearing from 
June 30 to July7. There were 78 altogether, 21 (143,79) 
ab. obsoleta, the rest normal. Four of the ab. obsoleta were 
obtained on June 30, and July 1, and six others later. Their 
ova began to hatch July 9, the larve pupated early in August, 
the imagos appearing August 10 to 19, 15 per cent. of the 
pupe emerging. All except one were females, and were of 
the form obsoleta, one was ab. biobsoleta, and fourteen had the 
black rings on the hindwings very imperfect. 
Mr. Tutt also exhibited an example of Huchloe cardamines, 
irregularly suffused with black markings, and a series of 
local varieties of Lepidoptera from Wigtonshire, taken by 
Mr. R. 8S. Gordon, and including forms of Canonympha 
typhon, Nemeophila russula, Dasychira fascelina, Gnophos 
obscuraria, Boarmia lichenaria, Cidaria comitata, ke. 
Mr. S. [mace exhibited a specimen of Acidalia herbariata, 
taken in July on the wall of a shop in Southampton 
Row, W.C. 
(et 
