100 BRITISH LEPIDOPTERA. 



now dark in colour; the resemblance to the larva of Eumo?-pha elpenor 

 is very close ; the larva darkest directly after moult, as it grows it 

 pales to a sepia-grey. Head somewhat square, with alternate dark 

 and pale vertical stripes ; surface dull, covered with a short growth 

 of fine hairs ; the head and thoracic segments small, the latter 

 tapering rapidly from ist abdominal segment to head, both head 

 and thoracic segments retractile to a considerable extent. A dark 

 mediodorsal line and pale subdorsal stripes, bordered with black, are 

 noticeable on thoracic segments ; traces of subdorsal band observed 

 on abdominal segments, most marked on 7th and 8th ; the interseg- 

 mental areas pale, and there are pale spots in the position of the trape- 

 zoidal tubercles ; caudal horn very insignificant, rather pale coloured; 

 anal flap with pale border; subsegments clearly marked, 6 (structurally 

 8) on each abdominal segment, the first (really 3 structurally) 

 equal in size to three or four of the following ones; both ocellated 

 spots large and well-developed ; a black blotch in about same position 

 on metathorax ; traces of the 7 oblique stripes are present. The 

 dark colour is due to black streaks and mottling on a pale greyish 

 ground ; other whitish spots are present in addition to the trapez- 

 oidal ones, the latter, however, clearest and most conspicuous ; 

 shagreen-hairs still present, and easily seen with an 1'' objective ; 

 spiracles white (Bacot). The newly-hatched larva is a little over 

 3mm. long; on segment 12 no horn, but a raised wart set with 

 two clubbed bristles, as if the horn had been absorbed, leaving 

 no more than its tip, the places of the usual tubercular dots marked 

 by tiny short knobbed black bristles ; the head and segment 13 

 set with short black hairs ; the colour pale grey-green on the back, 

 on the front of each segment a band of deeper tint than that on 

 the hinder part, the side greyer, the spiracular region almost whitish 

 the head and belly pale yellower-green ; in a day or two a whitish 

 subdorsal line, with edges rather darker than the ground-colour, 

 makes its appearance. The first moult comes when the larva is 

 6mm. long. After the moult the skin shows eight subdivisions in 

 each segment set with transverse rows of whitish round dots, each 

 bearing a tiny black bristle, the general colour pale green, the 

 subdorsal stripe white, the head green with tiny black hairs, 

 spiracles green, indistinct, the little wart with bristles on 12 as 

 before. The seco?id moult comes at the length of 10mm., and after 

 it was passed I noticed the larva had acquired the retractile move- 

 ment of the head and front segments ; the colouring much as 

 before, the wart on 12 now pink, about o*2mm. high, and set with 

 a few short hairs. The third moult, at the length of 20mm., brings 

 the first beginning of the characteristic markings ; most of the 

 larvae remained green, but there appeared a freckling of two tints ; 

 the subdorsal stripe was glaucous-green ; on this stripe, on segment 

 5, a spot, round in outline, of three colours, namely, white where 

 the subdorsal line passes, then lilac, and then dark brown in the 

 lower portion ; on segment 6 a small white spot on the subdorsal 

 line; the wart on 12 reddish, the subdorsal line runs up to it and 

 ends there. At this moult one larva turned brown — freckled in two 

 tints of brown — subdorsal line dingy buff; the spot on 5 had a 

 reddish centre and a dark brown edge; the small dot on 6 white. 

 The Joint li moult came at the length of 30mm., and then all my 



