16 THE entomologist's kecokd. 



diameter, and only •27mni. high. In shape it is a compressed spheroid. The 

 ground colour is a pale greenish-blue-grey ; the micropyle appearing as a dark grey 

 spot. The whole surface is covered with raised white reticulations, which produce 

 an irregular cellular pattern ; these are extremely fine over the micropyle, but 

 increase in size until reaching the side where they become largest and form a rough 

 serrated structure which gives the whole egg a bluish-white appearance. The 

 reticulations are much smaller in structure than in any egg of the British 

 Lycaenidae. 



Before hatching the egg assumes almost a pure white hue. They 

 commenced hatching on June 17th, remaining about eighteen days in 

 the egg state. 



Directly after the emergence the larva is very small, being only -TQmm. long. 

 It so closely resembles the young larva of Aricia (Lycaena) iitedon that the two are 

 almost identical, the only noticeable difference is that sepliryus has longer dorsal hairs 

 the spiracles are larger, and the colouring of the body whiter, than in A. viedon. 

 The head is deep olive, partly concealed by the overlapping frontal segment which 

 has a large central dorsal disc. It is of the usual Lycaena form, with very long 

 dorsal hairs placed in pairs on either side of the medio-dorsal furrow. The hair 

 on each segment is much the longest and has a white basal tubercle, below are two 

 minute subdorsal hairs ; midway between these two pairs of hairs are two lenticles, 

 the first one the larger ; the sub-spiracular row of hairs consists of three long ones 

 side by side, which project laterally. All the hairs are finely serrated and have 

 dark bases, except the longest dorsal one ; on the claspers are simple straight hairs 

 also with dark bases. The spiracles are large and dark brown, resembling the 

 largest lenticles. The colour of the body is pale yellovvish-green-white. 



The larvae feed on both surfaces of the AxtronalKs leaves but seem 

 to prefer the undersurface. They eat small holes in the cuticle making 

 numerous transparent spots over the surface. The first larva moulted 

 first time on June 28th, remaining eleven days in the first stage. 



After the first moult (shortly before second) it measures 3mm. long. The 

 ground colour is a light green, longitudinally striped with greenish-white along the 

 edges of the medio-dorsal furrow and lateral ridge. There are also short oblique 

 stripes along the side. The 2nd to 9th segments, inclusive, are humped dorsally 

 and the sides flattened. On the the 1st segment is a dorsal disc, and a rudimentary 

 scent or honey-gland obtains on the tenth segment. The body is rather thickly 

 clothed with white serrated hairs of various lengths, each having a dull green base. 

 There are also scattered over the body numerous raised black-rimmed lenticles ; a 

 row of these border the posterior edge of the transverse scent gland. The surface 

 is roughly granular. The head is shining black ; the legs whitish, and the 

 claspers greenish. 



In the second stage the}' rest and feed chiefly on the undersurface 

 of the leaves. They feed on the cuticle of the surface upon which 

 they live and leave the upper epidermis intact, little semitransparent 

 blotches on the leaves being produced. 



The second moult occurred on July 8th. 



The second stage occupied ten days. 



Shortly after the second moult the larva enters into hibernation about the 

 middle of July, it is then only about 3-50mm. long. The head is shining black. 

 The ground colour of the body is green ; it is longitudinally striped with brown, 

 the stripes are composed of markings on each segment, placed in longitudinal rows. 

 The surface is covered with white serrated hairs of various lengths, each having a 

 dusky olive-green base, the longest hairs being those along the dorsal and lateral 

 areas, those on the sub-dorsal surface are considerably shorter. The spiracles are 

 black and prominent and numerous dusky lenticles are sprinkled over the whole of 

 the body. The legs are ochreous, and the claspers green. The scent or honey- 

 gland is similar to that in the previous stage. 



Most of the larvae, which were kept on cut sprigs of Antraijalus 

 (stuck into small bottles with wool stopping up the necks), crawled 

 down the stems and buried themselves within the wool for hibernation. 



