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juncture of the metathorax and 1st abdominal segment, and disappears 

 opposite the spiracle of the 3rd segment. The abdominals are smoother 

 than the thoracic segments, the 1 st abdominal possessing a strong central 

 suture, which is sometimes also traceable on the 2nd segment. Subseg- 

 , mentation is not apparent. The movable incisions are between 4-5, 5-6, 

 and 6-7. The 5th. 6th. and 7th segments possess a flange on their anterior 

 margin ; the surface of the segment, instead of being curved down to the 

 incision, continues directly forwards and then outwards at a sharp angle 

 on the dorsum, but with a little final curve on the sides, to the sharp 

 margin of the flange ; the portion of the segment anterior to the flange is 

 furnished with a series of curved transverse rugae, greatest dorsally. When 

 the segments are flexed the anterior surface of the flange comes against the 

 soft flexible posterior margin of the segment in front, which is full and 

 rounded in such a way that the flange fits against it. The spiracles lie 

 laterally behind the flange, forcing it back slightly in the 6th and 7th seg- 

 ments, are oval with raised lips, large and conspicuous ; those of the 8th 

 abdominal are abortive. There is no evidence of the larval prolegs. The 

 cremaster (fig. 4) bears 2 large hooks, the extremities of which are whorled 

 and project ventrally and laterally ; 4 smaller flattened hooks, arranged 

 one above the other, are situated above tiles-', there being 2 on either side 



Fig. 4. — The cremaster. 



Fig. •). — Pupa: Frontal view, a, maxilla: 6, eye ; c, frontal headpiece; d, scape 



antenna ; e, antenna ; /, prothorax. 

 » 



Fig. (5. — Head portion of male pupa (note labial palpi). 



Fig. 7.- — Genital organs of male pupa. 



of the cremaster, and 2 others on the dorsal surface just above the large 

 posterior hooks. The tubercles are nearly all present, but are very minute, 

 and bear very short single simple setae ; they occupy the same positions 

 as in the larva, but ii, vii, and viii appeal" to be absent. The female genital 

 organ is situated on the ventral surface of the 8th abdominal, towards the 

 anterior margin ; is represented by a short longitudinal line surrounded 

 by an oval and slightly raised area, and on either side of this the sur- 

 face of the segment is somewhat elevated anteriorly. The male pupa is 

 distinguished by two very marked differences of structure. The labial 

 palpi occupy almost the whole margin of the labrum between the eyes, and 

 are but slightly constricted between the maxillae (fig. 6). The male genital 

 organs are represented by a very well defined depression guarded by two 

 lips, one right, the other left, and are confined to the 9th abdominal segment 

 (fig. 7). The 8th segment is free from any structure excepting the lateral 

 flattened tubercles mentioned above. The male is slightly more robust 

 than the female pupa. 



