512 Mr. R. Triiiieu on Mr. Millar''s Exitcrimcnial 
yellow; on the head the horns on the vertex are of the 
same colour, but the prominent simple eyes are conspicu¬ 
ously black with large white centres. This description 
applies also to E. deceptor, except that in that form the 
cephalic horns of the last stage are black, and the elevated 
pale-yellowish segmental half-rings are less regular and 
defined, being partly internipted atid discontinuous 
between the expanded bases of the spines. 
All naturalists will value the very interesting and im¬ 
portant contribution that has been made by Mr. Millar to 
insect bionomics by his persevering and well-directed 
experiments, and will join me in congratulating him, and 
in wishing him continued success in prosecuting his 
intended further researches into the life-history and 
genetic conditions of Euralia, and also in extending them 
to other kindred problems that await solution among the 
Lepidoptera of Africa. 
Explanation of the Plates. 
Plate LX I. 
Euralia deceptor, Trim. — Offspring (68 ^ ^ and 55 $ ^) hred— 
2nd to ]4tli May, 1909—from eggs laid by two “small, apparently 
dry-season ” $ 5 ) captured while ovipositing at Mount Edgcumbe, 
near Durban on 21st March, 1909. 
[From a photograph by Mr. J. H. Burn.] 
Plate LXII. 
Euralia wahlbergi, Wallengr. — Offspring (3 tcahlhergi-iorm 
— 2 (J d, 1 ? ; and 5 mima-form — 4 $ $, 1 $ ) bred — 24th to 
29th April, 1909 — from eggs laid by a single $ wahlhercji captured 
while ovipositing near Durban on 21st March, 1909. 
[From a photograph by Mr. J. H. Burn.] 
Plate LXIII. 
Euralia mima, Trim. (= second form of A.Wallengr.) 
— Offspring (24 ^ and 9 9 ?» ‘hi of true mima-fovm) bred — 
6th to 17th May, 1909 — from eggs laid by a single 9 mima captured 
near Durban about 2Gth March, 1909. 
[From a photograph by Mr. J. II. Burn.] 
Plate LXIV. 
Euralia mima., Trim. ( = second form of E. wahlbergi, Wallengr.) 
— Offspring (8 mfma-form—5 S 6 3 wahlbergi-ionn 
