The Externals of the Pupa

In Text-fig. 2, Fig. 4, is the larva just before metamorphosis, also shown in a photograph on Pl. 5, Fig. 12. This changed into a pupa during the following night, and is shown in Text-fig. 2, Fig. 5, and in photograph on Pl. 5, Fig. 13. This early pupa is three days old, and is drawn in Text-fig. 2, fig. 5, from the dorsal surface. At (MOT), is the mesothorax, and the suspensory cord (S) is spread over this extending down below the metathorax (MT) The haltere is at (H), and there are seven spiracular openings, the first at (AS) in the front of the mesothorax, the others abdominal, the third at (ABS 3). The wings (W), and legs (L), are shorter than in the older pupa shown in Text-fig. 2, Fig. 6.