210 BRITISH LEPIDOPTERA. 



length of the maxillae and are divided for about two-thirds their length. 

 The antennae reach to end of wings and the wings to the end of the 

 5th abdominal segment ; the 2nd pair of legs extend just beyond the 

 wings and the 3rd just beyond the second, the 1st pair falling a seg- 

 ment short of the end of the wings ; femora of the 1st pair of legs very 

 largely developed, forming a large central piece (on either side) below 

 the labial palpi. The tubercles consist of a single chitinous base and 

 one simple seta, and are placed as in the larva. The dorsal spines form 

 a patch well to the front of tubercles i (four spines in depth, very small, 

 neat and sharp) on abdominal segments 3-8. No long recurved hairs 

 on abdominal segment 8, four on each side of 9, and one on either side 

 of 10, the two dorso-anal hooks very close together, small, and placed 

 well back ; scars of prolegs faint ; spiracles on small conical bosses 

 directed backwards. The 5th abdominal segment with a wide ventral 

 depression for forewings and the 6th and 7th with a central groove for 

 the legs. Two swollen bulbs on front of venter of the 9th abdominal 

 with genital organs between. Female: The eye-pieces form very large 

 and distinct areas. The labium instead of being a simple structure as 

 in <? , is divided into three sections transversely, the base forming two 

 almost rectangular sections which, in turn, are separated from the 

 palpal extremities ; the maxillae do not appear to carry a palpus (well 

 developed in male) ; the antennae only reach to the end of the labial 

 palpi, the wings to the end of the 2nd abdominal segment, the 1st 

 pair of legs beyond the antennae, the 2nd as long as the wings, and the 

 3rd extending just beyond. There are six long recurved hairs, on 

 abdominal segment 8, on each side ; five on each side of 9, and two on 

 10 ; most of the hairs on the 7th abdominal segment are more or less 

 recurved at the tip. The male pupa dehisces so that the eye goes with 

 the faceparts and antennae, but not the legs. In the female pupa, the 

 headpiece carries the first pair of legs on dehiscence. Chapman notes 

 as follows : The male and female pupae have a length of 3-4mm., the 

 wings in female extend to 2nd abdominal, in male to 5th or 6th. The 

 female pupa is slightly curved, especially the anterior segments, so that 

 the head is turned directly ventrally instead of rather forwards. The wings 

 and legs are fixed to the abdominal segments 1 and 2. The 3rd abdo- 

 minal segment is fixed anteriorly, the 4th, 5th, and 6th free, the 7th to 

 anal, fixed. The spiracles on 2-7 abdominals are very distinct, each 

 raised on a mammilla which is surrounded by a vallum. There is a 

 brown supraspiracular hair immediately dorsal to this, fine and pointed 

 on the anterior segments, but with a thickening or hook on the pos- 

 terior, first obvious about the 6th abdominal ; there is a finer hair 

 ventrally at some distance from the spiracle and rather towards the 

 middle line ventrally. Although the moth-hairs are very obvious, they 

 are so sparse on the abdomen that the tracheal trunks are easily visible 

 through the pupal and imaginal skins. Dorsally there are two (trape- 

 zoidal) hairs on either side, the anterior rather the shorter, which tend 

 to be hooked at about the 7th segment, and all these hairs on 8, 9, 10 are 

 quite hooked. They are quite recognisable on the abdominal segments 

 as three dorsal (i, ii, iii) and six ventral (iv, v, vi, two vii, and one just 

 external to leg-scar) hairs, on either side, except that on the 9th abdo- 

 minal the posterior trapezoidals appear to be wanting. On the 10th, the 

 anterior trapezoidals are very strong being rather spines than hairs, 

 and are accompanied by the two short sharp dorso-anal points (one on 



