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XV. Notes in 1887 upon lepidopterous larve, dc., including 
oo er) 
a complete account of the life-history of the larve of 
Sphinx convolvuli and Aglia tau. By Epwarp 
Be POuRrONe Mins, ob). Uo, eh Guo, ft .Zie., <OL 
Jesus and Keble Colleges, Oxford. 
[Read October 3rd, 1888. ] 
Puaris XV., Vi, & XVI. 
CONTENTS. 
. The ontogeny of Sphinw convolvult. 
. The ontogeny of Aglia tau. 
. The natural position of the Sphingide. 
. The cause and meaning of the Sphinx-like attitude. 
. The graphic method of representing the growth of lepidopterous 
larve. 
. The means of defence adopted by the larva of Stawropus fagi. 
. The meaning of the black colour of the eggs of Paniscus cephalotes. 
. The defensive value of “ tussocks 
” 
and the associated black inter- 
segmental markings. 
. The meaning of the peculiar method of progression in the larve of 
Cochliopodide. 
. The protective resemblances of the larve of Geometra papilionaria. 
. A proof of the protective value of dimorphism in larve. 
. The protective resemblance of the pupa of Apatura iris. 
. The defensive secretion of the larva of Cresus varus. 
. The geometriform structure and attitudes of the larva of Huclidia mi. 
. The determination of sex in certain living lepidopterous larve. 
1. Tue OntrocEeny oF SPHINX CONVOLVULI.—Ever since 
the summer of 1884, when I had the pleasure of working 
out the ontogeny of Sphinx ligustri, I have been ex- 
tremely anxious to obtain the fertile ova of two of our 
British Sphingide, viz., those of Sphinx convolvuli and 
Acherontia atropos. Through the great kindness of my 
friend and former pupil Mr. EH. D. Y. Pode, of Slade, 
Ivybridge, who has helped me with material on many 
previous occasions, I have been able to work out the 
TRANS. ENT. SOC. LOND. 1888.—PaRTIV. (DEC.) 
