Watt. — Study of New Zealand Entomology. 



267 



narrow, and extend to the end of the wing-cases. Small scars representing 

 the mandibles are to be found on either side of the clypeus. The 1st legs 

 are stout, and the margin against the eye is equal in length to the correspond- 

 ing margin against the maxillae. The 2nd pair of legs are long and narrow. 

 The frontal headpiece is triangular in shape. On the female pupa the 



Fig. 12. — Pupa: Male genital organs. 



Fig. 13. — Pupa: Frontal view, a, eye ; b, antenna; c, epicranium : 

 d, prothorax. 



genital organs are confined to the 8th abdominal segment, which is greatly 

 encroached upon on the ventral surface by the 9th abdominal. The anal 

 scar in the 10th abdominal in both male and female pupae is raised and 

 prominent. Duration of pupal stage, three to five weeks, and longer; many 

 probably pass the winter in this stage. 



Dehiscence. 



" Dorsally split down middle of meso- and meta-thorax, and trans- 

 versely at suture of same ; the headpiece, with eyes, legs, and antennae 

 intact, separates from costal edge of wing-cases, except at their tips " (Quail, 



ibid.). 



Measurements of Pupa. 



Length from Front. 



Measurement at 



Male. female. 



Transverse Diameter. 

 Male. Female. 



Anterior-posterior 

 Diameter. 



Male. 



Female. 



Outer angle of maxilla 

 Posterior margin of mesothorax 

 Dorsal depression . . 

 End of 1st legs 

 End of 2nd legs 

 End of maxillae 

 Posterior margin of 7th abdo- 

 minal segment 

 Ditto, 10th abdominal segment 

 Extreme length 



Mm. 

 4-50 

 4-70 

 4-66 

 5-00 

 5-50 

 4-67 

 2-75 



0-50 



The Imago. — See Meyrick (Trans. N.Z. Inst., xxii, p. 218) and Hudson 

 (N.Z. Moths and Butterflies, p. 2, pi. 4, figs. 1 and 2 ; pi. 3, fig. 9). 



Distribution. — North and South Islands, Stewart Island. Confined to 

 New Zealand, but two closely allied species belonging to the same genus 

 are found in Australia. Has only been recorded from Waiouru (rare), 

 New Plymouth, Wanganui (common), Lumsden (common), Mount Holds- 

 worth, Kermadec Islands (apparently common). 



