ZYGJENID.'E. 125 



with two black dots ; body of even thickness, except that it 

 tapers suddenly to the very small head, and the hinder part 

 of each body segment is slightly raised into a ridge. Colour 

 dull pale green with abundant minute black points : dorsal 

 line broadly whitish green, shaded off on each side ; subdorsal 

 line whitish, interrupted on each segment by a distinct 

 yellow spot, immediately above and behind which is a distinct 

 round black dot at the incision of each segment ; spiracular 

 line very indistinct, whitish green; ordinary raised spots 

 green, bearing tufts of short downy white hairs ; spiracles 

 black with white rings; legs and prolegs greenish with a 

 blackish ring. Before full growth the colour is rather darker, 

 and the subdorsal lines are interrupted by a very bright 

 yellow spot on each segment. Fairly active in its movements 

 when hungry, but usually so sluggish that another may walk 

 over without disturbing it. 



August to May or June, hybernating when small and 

 growing very slowly. On Lotus corniculatus and other low- 

 growing leguminous plants. 



Mr. W. H. B. Fletcher finds that the larva of this species 

 is not, in all cases, satisfied with hybernating only once, but 

 that some individuals, after waking up in the spring, cast a 

 skin, eat a little, and then settle down again to wait for 

 another winter. This, moreover, is not caused by low tempera- 

 ture, since several larvae settled down again in this manner 

 and remained torpid during the unusual heat of the early 

 part of the present summer (1893). Even when feeding up 

 its growth is slow as compared with that of the larvfB of the 

 allied species. 



Pupa with the head, and sheaths of the wings, legs, and 

 antenna, glossy black ; the whole of the abdomen and the 

 back clear spotless pale yellow, the skin of the latter portion 

 so thin that after the moth has emerged there remains only a 

 filmy transparent white pellicle. (The contrast shown in 

 this species between the two colours is most remarkable and 



