I2O 



INSECT TRANSFORMATION 



Through its second stage, which lasts four or five months, the 

 larva feeds voraciously, though with long intervals for digestion 

 between its meals, each of which may involve the absorption 

 of an entire small caterpillar ; it becomes relatively stouter 



d 



FIG. 68. STAGES OF Psychopsis elegans, AUSTRALIA. 



, young first-stage larva ; b, the same at end of first stage, x 10. c, second- and d, third- 

 stage larva; e, pupa (side view), x 6. /, foot of first-stage larva, x 40. mn, mandible; 

 mx, maxilla of third-stage larva (c, cardo ; st, stipes ; g, galea ; p, palpiger) . x 18. After Tillyard, 

 Proc. Linn. Soc., N.S. Wales, XLIII. 



as well as much longer than in the first stage, and shows a 

 marked widening of the second and third thoracic segments as 

 compared with the prothorax (Fig. 68 c). In the third stage 



