— 
( iw ) 
significance of its behaviour. The habit was of the nature 
of a reaction or response, which, like other adaptations, had 
grown up under the influence of natural selection. 
Dr. Lonestarr observed that in North Africa certain species 
of Teracolus gave abundance of ¢ ¢ in the morning, whilst in 
g; 
the afternoon the 9 9 predominated greatly. 
Commander Waker, Mr. G. A. K. MarsHaui and Pro’. 
Poutton also took part in the discussion. 
THE Cocoon OF DEILEMERA ANTINORII, OBERTH.—Prof. 
Poutton exhibited the cocoon of the Hypsid moth Deilemera 
antinori, Oberth., which Mr. W. A. Lamporn described (see 
p. xlvi), and had intended to exhibit on June 7 last. He 
stated that Mr. Lamborn had written on September 4, since 
his return to the Lagos district: ‘The larva passes the cocoon- 
like bodies through the anus, as you surmised.” A little 
later, on September 10, Mr. Lamborn had written: ‘“ I cannot 
add more precise information as to the way in which the 
cocoons are formed, for the larvae which have hitherto spun 
up, did so at atime when I could not conveniently observe 
them. I saw, however, a few more of the Braconid-cocoon- 
like bodies passed per anum at the end of the cocoon opposite 
that at which the larva was spinning, and when several had 
accumulated the larva turned round and distributed them.” 
ALL-FEMALE BaTcHES OF ACRAEA ENCEDON, L., BRED IN 
THE Lacos Disrrict.—Prof. Pouiron also exhibited examples 
from three of the all-female broods obtained by Mr. W. A. 
Lamborn, viz. from Companies 2 and 3 and from Family | 
in the table printed below. These three sets were chosen 
because they prove that the unisexual batches are not neces- 
sarily associated with either of the forms of encedon in the 
locality. Thus Family 1 was all /ycia, Company 3 all encedon, 
while Company 2 was as nearly as possible half and half 
(23 to 24). The table clearly shows, in a condensed form, all 
the results hitherto obtained in this species by Mr. Lamborn. 
Out of the three families, one was all-female ; out of the seven 
companies, three. Furthermore, the results obtained from 
the two sets of wild larvae strongly suggest that both were, 
in chief part, composed of the scattered individuals of an all- 
female batch, intermixed, in the June-July series, with an 
