Brked. — Muscle MetamorphoBis. 



PLATE 1. 



All of the figures magnified 67.5 diameters. 



Fig. 1. Dorsal view of the dorsal antero-posterior muscles of the left side of the 



metathorax of a, feeding larva. Anterior is up on the plate. 

 Fig. 2. Yoiuuj pupal stage of the muscles shown in Fig. 1. Similar view. 

 Fig. 3. Deeper layer of the lateral dorso-ventral muscles of tlie left side of 



the metathora.x of a feeding larva seen in lateral aspect. Anterior at 



the left. 

 Fig. 4. Superficial layer of the group of muscles whose deeper layer is shown in 



Fig. 3. 



