138 Dr. T. A. Chapman's Observations on 



subdorsal yellow line (between I, 11, and III) sends down 

 branches marking off a somewhat square white area round 

 III ; III placed slightly backward, IV + V, first one 

 highest with shorter hair. Hairs about half the diameter 

 of larva in length. Props of prolegs rather short. 



When at rest the incisions are deep and the segments 

 stand out high and cushiony with the elevation of the 

 tubercles — especially I and II, and IV and V — making 

 angular points. 



Below IV and V is a single hair and at base of prolegs 

 the usual three hairs, which are however very conspicuous, 

 being black in a wliite ground. On 1st thoracic the plate 

 is rather dark, divided centrally by a pale, hardly yellow 

 line, with, on either half, a nearly central large hair, a 

 small one at outer angle and three along front edge, a 

 three-haired tubercle in front of spiracle and one at base 

 of leg. 



Second and 8rd thoracic has on either side four double 

 tubercles along middle of segment, the third with an 

 extra hair above and behind it and the prolegs carry 7 

 crotchets in a circle, incomplete at its outer margin. The 

 black crotchets on the pale white base have a very 

 pronounced aspect different from the more usual pale 

 brownish crotchets on a yellowish base. 



1905. Jauy. 14th. Not liking the look of my plants I 

 examined them. The first was dead, remains of a larval 

 head detected. No. 2 was alive, but no trace of larva 

 could be found. The third contained a larva, which was 

 preserved, lest worse befall him. He seemed much as 

 described at last entry. The cavity containing his cocoon 

 was excavated towards the heart of the button, or bud 

 of the plant, several of the small undeveloped leaves (?) 

 being well eaten into. This biid preserved in formalin. 

 When the cocoon was removed, the eaten portion, or rather 

 what was not eaten, formed a small hollow into which, or 

 on to which the cocoon would just fit. 



This closed the campaign with the 1004 eggs. It 

 appeared from this that the young larva feeds somewhere 

 in the centre of the plant as an internal feeder, and finally 

 makes a cocoon in the heart of the plant for hibernation. 

 The one cocoon of which I made the most satisfactory 

 examination, consisted of a cavity the greater part of which 

 was excavated out of the material of the outer leaves of 

 the centre bud (winter bulb) and completed by a silken 



