Breed. — Muscle Metamorphosis. 



PLATE 4. 



Both figures magnified G7.5 diameters. 



Fig. 9. Superficial layer of the inetathoracic muscles of the left side of an imago 



as they would appear with tlie lateral wall of the metathorax removed. 



Anterior at the left. 



Fig. 10. Portion of a cross section of tlie metathora.\ of a larva showing the 



cross section of the ventral anteroposterior muscles. Dorsal up on 



the plate. 



