Watt. — Leaf-mining Insects of New Zealand. 



205 



1920, and emerged 24th October, 1920 — thirty-nine days. It is possible 

 that the larva hibernates in the cocoon. 



The Pupa. 



Female.— Ventral view : In outline the front is rounded and bluntly 

 prominent ; laterally there is a small incisura between it and the base of 

 the antenna ; this latter occupies the lateral outline for only a very short 

 distance. The upper half of the lateral outline is evenly curved convex, 

 and is formed bv the forewina; ; the lower half is also curved convex but 

 is interrupted by the depression between each segment, it is occupied by 

 segments 3 to 10 inclusive ; a small amount of the prominent spiracles 

 appears on the lateral aspect of each segment, those on the eighth being 

 especially prominent. The last abdominal segment is bluntly rounded 

 and is slightly notched caudad ; the genital opening can be detected on its 

 ventral surface. Only a little of the eye is freely exposed, its upper third 

 being covered by the base of the antenna, and its lower third by the maxillarv 

 palpus. The maxillary palpus is well developed, its expanded base resting 

 against the antenna, and its bluntly pointed mesial extremity touching 

 the labrum. This latter broad and rounded. 

 Labial palpi narrow, and reach just below the 

 lower extremities of the maxillae. The maxilla 

 is broad above, its base resting against the mesial 

 half of the maxillarv palpus and portion of the 

 labrum between it and the labial palpi ; its caudal 

 extremity does not reach quite so far as that of 

 the labial palpus. First legs broad and short, 

 reaching from the maxillary palpus above to about 

 half-way between the caudal extremities of the 

 first and second coxae ; a slight slip of the femur 

 is interposed in the upper third between the base 

 of the leg and the maxilla ; appearing as a short 

 extension caudad is the tibia of the second leg, 

 reaching to the caudal extremity of the second 

 coxa. Second legs narrow in their upper third, and Fig. 6. — Pupa of N. ogygia. 

 occupy a position between the antennae laterally 

 and the first legs, second tibiae and second coxae 



mesially ; at their upper extremity they rest against the maxillary palpus 

 and become fairly broad about their middle, extending caudad to about the 

 middle of the fourth abdominal segment, which is here exposed ; appear- 

 ing from beneath the extremity of the second leg is a short process, the 

 tibia of the third leg. Third legs appear from beneath the forewings in 

 the angle between them and the third tibiae ; they soon meet in the 

 mid-line and extend to the upper border of the last abdominal segment. 

 Antenna narrow, plainly segmented, lies close against but terminates slightly 

 higher than the second leg. The coxae of all three legs are broad and of 

 about equal length. Between the third coxae above and the third legs 

 below a small area of the ventral surface of the third, fourth, and fifth 

 abdominal segments can be seen. It is here and about the eyes and labrum 

 that the first colour-changes take place. Forewing somewhat narrow, 

 terminates caudad in a fairly acute point on a level with the caudal 

 extremities of the third legs. In some specimens a very slight slip of 

 the hindwings appears at the caudal extremity of the forewing, between it 

 and the third leg. 



