136 
ova from them, and fed up the resultant larve, but among 
the many hundreds of moths that he had reared from them 
only some three or four individuals approached the variety, 
and even in these the “‘ gothic’ mark was not entirely absent. 
He found that, asa rule, the progeny followed their respec- 
tive female parents somewhat closely in general appearance, 
and he was completely at a loss to assign a reason for the 
apparent failure of heredity in respect to the special cha- 
racter, the suppression of the ‘“‘ gothic” mark. 
JUNE 24th, 1897. 
Mr. R. ADKIN, F.E.S., President, in the Chair. 
Mr. W. H. Drury, F.R.H.S., of Kingston-on-Thames, 
and Mr. G. Sandison, of Wimbledon, were elected members. 
Mr. B. H. Waters exhibited a long series of the eggs of 
the guillemot, some twenty-four in number, showing the 
great variation to which the eggs of this bird is subject. 
Mr. South exhibited three series of Zygena filipendule 
taken in a Middlesex locality on June 12th, and representing 
the form /hippocrepidis, Steph., the type form and interme- 
diates, and said that he was unable to draw any fine distinc- 
tion between the first and last (for full details of this exhibit 
see “SE ntom., iXxXx., 160): 
Mr. R. Adkin exhibited a series of Cyamiris (Lycena) 
argiolus bred from ova and larve obtained at Eastbourne 
last autumin (‘* Proc.,”” 1896, p: 110). Hle) said thatrtwelve 
individuals reached the pupal stage; from these he reared 
seven perfect specimens, one slightly deformed, three very 
badly crippled, and one pupa died. Heattributed the large 
proportion of deformities to the fact that several of the larvee 
pupated on the central portion of the upper side of the ivy 
leaves, which in drying somewhat closed up on the pupe, 
causing a pressure on the pupe, and preventing the imago 
detaching its wings from the pupa skin. The one slightly 
deformed he found in this position before its wings had 
dried, and on being freed from the pupa skin it almost com- 
pletely expanded its wings. The crippled examples were 
similarly liberated, but their wings were too much dried to 
expand on being set free. 
