BREED. -- Muscle Metamorphosis. 
PLATE 7. 
Fig. 33. Longitudinal section of a functional muscle fibre. Feeding larva. X 800. 
Fig. 34. Longitudinal section of the largest of the fibres of musculus metanoti. 
Taken from a resting larva. X 800. 
Fig. 35. Longitudinal section of a portion of musculus metanoti. Taken from an 
old pupa. 800. 
Fig. 86. Longitudinal section of a part of flexor coxae metathoracis secundus. 
Drawn from an imago. %X 800. 
Fig. 37. Longitudinal section of one of the degenerating larval muscles of the dor- 
sal antero-posterior group in the mesothorax. Drawn from a young 
pupa. X 800. 
Fig. 38. Remains of the degenerating larval muscles e, » (see Fig. 1). Drawn 
from an old pupa. X 800. 
Fig. 39. Cross section of the degenerating larval muscles «, 7. Drawn from a 
young pupa. X 800. 
Figs. 40-48. Leucocytes containing foreign bodies, all of them being taken from 
old pupae. X 1600. 
Fig. 49. Cross section of flexor alae metathoracis secundus. Drawn from a rest- 
ing larva. X 800. 
Fig. 50. Cross section of the same muscle in the imago.  X 800. 
Fig. 51. Cross section of a part of the wall of the proventriculus of a larva about 
to pupate. xX 1200. 
Fig. 52. Dorsal part of a cross section of the proventriculus of an o/d pupa. 
Ventral is uppermost on the plate. X 1200. 
