BANKESIA STAINTONI. 211 



either side), and two hairs which appear to represent the post-spiracular 

 hairs of the 8th abdominal. The mouthparts are rather dwindled. There 

 are two labia centrally, i.e., the labium consists of two portions, one 

 above the other, without being divided into two palpi ; the maxillary- 

 palpus is not evident except as a point of maxilla. The eye is dis- 

 tinctly divided into an inner true eye and a glazed eye. The imaginal 

 eye within is apparently represented by a small black disc about one- 

 fourth the diameter of pupal eye. The pupal antenna?, vaguely three- 

 jointed, are broad, short, flat plates (something like those of a <y 

 Saturniid) with a very large basal portion, forming nearly half the 

 antenna (something like the base of a Nepticulid antenna). The 

 imaginal antenna (seven- or eight-jointed) within, is a narrow thread 

 not extending the whole length of, and about one-fourth the width of, the 

 pupal antenna. The anterior pupal wings meet, except where sepa- 

 rated by the tarsal extremities, in the middle line ; the hindwings are 

 a small strip at the dorsal margin of the forewings, no imaginal struc- 

 ture can be seen within the wings. The wings are very transparent, 

 and, from the obviousness of the hairs on the general surface beneath 

 and which show through the wing position, one concludes there are no 

 imaginal wings. The legs are short and stumpy, rather prominent, 

 and the position of the tarsi is marked by the imaginal terminal hooks 

 (of which there is a pair to each tarsus), which are very conspicuous 

 within them. There are two rather strong, deflexed, supra-oral hairs 

 on either side. In the case of the posterior legs, at least, the imaginal 

 leg is much more slender than the pupal. Ventrally there are, on the 

 3rd, 4th, 5th and 6th abdominal segments, pairs of slight shield-like 

 rounded elevations in the position of the usual eight prolegs ; the general 

 surface is very finely pitted. Dorsally the pupa is darker (?due to presence 

 of more hairs on imago), and there is a distinct keel on the mesothorax. 

 The intersegmental membranes between abdominal segments 1-2 and 2-3 

 are stretched out and look as if these moved but this is not so ; the 

 whole area is finely pitted, but on the 3rd abdominal there are some 

 slight longitudinal ridges or rather wrinkles, which are more pro- 

 nounced on the following segments, and on 5 and 6 form a patch of 

 distinct sharp points directed backwards. They are anterior to the 

 trapezoidal hairs, and are somewhat irregular in disposition, thinning 

 out both laterally and backwards, there are about twenty from side to 

 side and four or five from back to front on each segment. The male 

 pupa is without the anterior curving of the female (? due to atrophy of 

 appendages), and is quite straight. The head forms a rather bulbous 

 projection and there is also a deep waist formed, especially dorsally 

 {i.e., seen sideways), by the 1st abdominal falling in to form a hollow 

 between it and the 2nd abdominal. The wings and antennae extend 

 to the end of the 5th or 6th abdominal segments and the posterior 

 legs to the end of the 6th or 7th ; they appear to be free from the 4th, 

 but from the analogy of the ? are probably so from the 3rd. The 

 hairs are much as in J , the preoral hairs recurved, two on each side ; 

 the 7th abdominal segment is very distinctly free. The visible portion 

 of bindwing extends as far as the the 2nd abdominal incision. Dor- 

 sally there is a distinct ridge on mesothorax, the incision between 

 meso- and metathorax is straight and transverse and deeply cut, and 

 is followed by an escutcheon-shaped (triangular) raised portion of 1st 

 abdominal, which is very depressed centrally, and has a narrow ridge 



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