494 BRITISH LEPIDOPTF.RA. 



concerning various details as the pupacase did not define with 

 much exactness the limits of the limbs. The serrated sheath of the 

 antenna starts squarely from above the eye-covering and descends 

 downwards and backwards to be inserted just past the junction of abdo- 

 minal segments i and 2, between the 2nd leg and the costal line of the 

 wing-case. The 1st leg shows its upper visible segment (the femur) 

 close behind and below the glazed eye and between here and the 

 maxillae, on the upper edge of the prothoracic segment ; from this 

 point the next segment (the tibia) descends obliquely 'backwards, 

 its lowest point being situated near the thick dark medioventral line 

 before alluded to, at the junction of the meso- and metathoracic 

 segments, whilst the last segment of the leg (the tarsus) terminates 

 upon the 2nd abdominal segment, lying close against the broad 

 dark medioventral line The femur of leg 2 commences at about 

 the centre of the mesothoracic segment, against the tibia of leg 1. 

 The junction of this segment of leg 2, with the tibia, is not definitely 

 visible through the pupa -case, but the tibia terminates on the anterior 

 edge of abdominal segment 1. From thence the tarsus extends, 

 packed closely against the broad medioventral line to the centre of 

 abdominal segment 3, where it terminates. The detail of the 3rd leg 

 could not be made out as it is packed beneath and behind the 

 costa of the wing, but, as the imago advances towards emergence, 

 the lower joint can be faintly discerned through the wings 

 on the posterior portion of abdominal segment 2, from 

 whence its last segment doubtless lay beneath the wing costa, 

 but its termination could only be guessed at. The wing 

 extends to the extreme posterior edge of abdominal segment 

 4, where it is carried slightly round the full edge of the segment 

 almost to the deep depressed division from the next segment ; 

 hence it ascends upwards and forwards in a graceful curve to 

 an angle on the lateral centre ot abdominal segment 3, the 

 point of the angle impinging on and crossing the lower portion 

 of the spiracular blotch there ; it is then carried forward 

 in a hollow curve to the shoulder in the thoracic region. The 

 nervures are well-defined, firmly, though delicately, traced upon 

 the surface, the marginal edging to the wings sharply and neatly 

 incised. The lines upon the head and thorax marking the structural 

 divisions thereof are defined in thin brown line, slightly, but 

 sharply, depressed at their edges. [The pupa becomes much 

 quieter after its first week of existence and seldom moves or shows 

 signs of life when undergoing inspection.] It very gradually deepens 

 in colour to a distinct sienna tint, especially on the dorsal surface, 

 and, by October 30th, seemed to have reached its final stage in this 

 direction. The ventral surface and wings remain fairly light and 

 clear, the latter preserving very little of the freckled appearance 

 which was noticeable on the other portions of its surface, and 

 which had now turned dark, almost to blackness, on the anterior 

 part of the dorsal area of the segments. Mature pupa ( November 

 5th, 1903): The pupa has now lost its transparent and shiny look; 

 the whole of the surface opaque and although warmer and more ochre- 

 coloured than putty-coloured, it suggests the dull dead surface of putty. 

 The ventral portion of the thorax, containing the legs, is lighter and 

 rather greyer in tint than the rest of the pupal skin, but shows no 

 tendency towards the colour-markings of the imago. The darkening of 



