Ixxxv, Ixxxvi] (era) 
Commenting on these species Mr. Neave said that he had 
found the above change of colour in the seasonal phases, 
which is common to all the above species, but is most marked 
in acrita, exceedingly difficult to account for. The very 
strongly aposematic coloration of this species in the dry 
season when the struggle for existence is keenest is most 
notable. It was, he thought, at this time of year, the most 
brilliant insect on the wing that he knew. The change of 
colour is also accompanied to some extent by change of habit, 
dry-season specimens being much more restless and hard to 
capture than wet ones. It seemed therefore difficult to 
account for these facts without supposing that the brilliant 
dry-season phases have been evolved, by stress of circumstance 
at that time of year, from a duller coloured phase such as, in 
this region, we still find in the wet season when the struggle 
is not so keen. 
Seasonal forms in the Pierine were represented by :— 
(e) A long series of Teracolus regina, Trim., of both sexes and 
of Teracolus phlegyas, Butler. ‘“Thedry season ? 2? of regina 
remarkable for having the brilliant purple apical tip of the 
¢ much more strongly represented in dry-season specimens 
than in wet.” 
The distribution of these two species in this particular 
region was of interest, inasmuch as the exhibitor had never 
taken both in the same locality. 7. phlegyas appeared to be 
entirely confined to the hot dry river valleys and low country 
up to 2000 feet, whilst he took regina commonly in the more 
hilly uplands from 2000 feet upwards. 
(f) Teriomima hildegarda, Kirby, dry, intermediate and wet 
phases. A rare phenomenon in African Lycenide. 
Mr. G. A. K. Marswatt, with reference to the seasonal 
changes in Acrexa, expressed the opinion that the increase of 
the blackish markings, which is so usual a feature in the 
summer 9 ?, tended to make the insects less conspicuous on 
the wing and probably had a procryptic significance. This 
might be due to the fact that that was the season of ovi- 
position when the ¢ ? might require special protection, even 
in the case of distasteful species. With regard to Mr. Neave’s 
remarks on the brilliant colouring of A. acrita in the dry 
