70 i; April, 



iiciTures ax-e of a dark colour. Costal fringe black from the posterior radius to the 

 subcosta, and again at the anterior end of the dark transfurcal fascia, which expands 

 in it slightly. The innermost or basal dark fascia does not enter the costal fringe, 

 and is hastate, with the cusp on the pobrachial stem not produced to the median 

 dark fascia. 



This species is easily distinguished from the preceding by the 

 number of blackish joints in the tarsi, and by the different form of 

 its superior ,^ genital appendages. It is not represented in Walker's 

 collection in the British (Natural History) Museum. 



{To be continued). 



NOTES ON THE LIFE-HISTORY OF LYCMNA ARQIOLUS. 

 BY E. M. PRIDEAUX. 



A female of this species was captured in tbe neighbourhood of 

 Carisbrooke, Isle of White, on August 7th, and confined in a glass 

 cage containing sprays of immature ivy-bloom, together with some 

 flowers of Eupntorium cannahinum, on which I had observed the 

 butterflies to feed, in nature. 



Three days later a few eggs were deposited on the ivy-stems, at 

 the base of the flower-umbels, and on each of the ensuing three days 

 more eggs were laid, the same situation being almost invariably 

 cbosen. Then the insect ceased laying, and, although she lived for 

 15 days longer, no more ova were obtained. 



The egg resembles that of L. Corydon and others of the genus, and is circular, 

 flattened, and slightly concave towards the centre, in colour a translucent greenish- 

 white. What renders it such a beautiful microscopic object is the raised net- 

 work pattern which covers the entire surface except a small central area. The 

 " mesli " is larger at the equator, and at each point where the lines converge is a 

 prominent glassy tubercle. The eggs hatched in from three to five days after being 

 deposited ; the young larva is cylindrical at first, with long white hairs pointing 

 backwards ; after a few meals, and before the first moult, it becomes stouter in the 

 middle, and soon assimilates to the usual Lycanid shape. All the larvae in their 

 earlier stages were of a uniform pale green colour ; the pink markings on the sides 

 and dorsal area which some specimens developed, did not appear till they were half- 

 grown. A hole is gnawed in the centre of the egg, but the rim is left entire, nor is 

 the shell subsequently calen, a fact which 1 found afterwards greatly facilitated the 

 capture of the larva in nature. The method of feeding is peculiar, and the same 

 throughout the entire larval period, but is seen to the best advantage in the adult 

 larva. A small, circular hole is drilled in the side of an unexpanded corolla of the 

 ivy-flower, the petals are not further eaten, but an entire clearance of the inside of 

 the bud is made, the larva protruding its long, retractile neck leech-like into the 

 interior of the bud while the 3rd ridged segment seems firmly glued to the side of 

 it. The stamens being consumed, the corolla soon becomes an empty bag under the 



