WHITTLEIA RETIELLA. 345 



longer than the others. The anus is smooth ; sears in position of 

 prolegs distinct ; spiracles black and raised ; rudimentary sexual 

 organs well-defined. The surface of the pupal skin shiny, but the skin 

 itself somewhat wrinkled, the dorsal area covered with minute spicules ; 

 lateral hairs as in other Psychid pupa? as regards position ; scattered 

 dorsal hairs appear to be present on each segment, but the surface is 

 so covered with silk threads from the cocoon that it is difficult to define 

 their position. Distinct, dark-coloured, recurved spines, are present 

 on anterior edge of the dorsal area of abdominal segments 5-8, also 

 traceable on 4, but little more than enlarged spicules on this segment ; 

 on the posterior edge of abdominal segments 4-6, traces of a row of 

 forward-pointing spines may be detected. The wing-cases are present 

 but very small, folded down ventrally, sloping very slightly towards 

 anus ; the hind margins of the hindwings overlap a portion of the 1st 

 abdominal segment, but the apices of the forewings do not quite reach 

 to the end of the metathorax and the wings do not nearly meet 

 ventrally, being in fact lateral, and hardly encroaching on the ventral 

 area proper at all. The antenna-cases are extremely short and small, 

 they do not reach to the costa of the 1st pair of wings. The legs are 

 most strange ; they appear to be short lateral structures and slope 

 outwards from base on the meso- and metathorax ; the third pair are 

 especially short, the tip only projecting outwards for a short distance 

 over the 1st abdominal segment ; the second pair are longer and 

 project outwards almost across the metathorax ; the first pair extend 

 nearly at right angles from the base, the tip curving upwards and 

 standing out slightly from the surface of the pupa, they hardly project 

 at all over the mesothorax. The head stands out prominently and has 

 a distinctly hymenopterous facies. This appears to be chiefly due to 

 the structure of the ? labium. Below this, is a narrow transverse 

 strip, with a suture in the centre, and bounded on either side by the 

 ends of the first pair of legs, the bases of the legs appear to lie under 

 this plate (Bacot). The ? pupa of W. retiella has the labrum well 

 marked, and the jaws full and rounded, the cheeks descend very low 

 on each side of these, their lower margins ranging with the ends of 

 labium and maxillag, which together form a large three-lobed lappet, 

 the central lobe (labium) having hardly a sign of median divisions. The 

 antennae are two lobes or lappets on the middle of the cheeks, of a size 

 about twice that of the jaws or half the labrum ; below the labium are 

 the legs as three pairs of lappets following each other, each lateral 

 lappet consisting of an inner (femur) and outer (leg) portion, the latter 

 rather the longer, the forewings fold down beside these, the hindwings 

 behind the forewings almost uncovered by them. They hardly pass 

 the 3rd thoracic segment. The dorsal head-piece of the pupa is a 

 narrow strip along the front of the prothorax. The mesothorax splits 

 only half way down, the head-piece remains attached to the rest of the 

 pupa (Chapman) . 



Dehiscence. — The male pupa-case when empty is thin and trans- 

 parent, pale yellow in colour. The antennae, eye-cases, legs and 

 mouth-parts separate as a single shield-like piece (although easily 

 separable) from the rest of the pupa on dehiscence, leaving the wing- 

 •cases and dorsal head-pieces attached to rest of pupa (Bacot). 



Parasites. — Lissonota coin mixta bred by Whittle (teste Bignell). 



Food-plant. — ticlerochroa (Pod) inaritiina (Whittle). 



