OF THE LARVA OF PYGiERA BUCEPHALA. 191 



DESCRIPTION OF THE PLATES. 

 Tab. XXXIV. and XXXV. 



In Tab. XXXIV. the insect is supposed to liave Ijeen cut open down the side, the internal organs to 

 liave been removed, and then the skin to have been flattened. The muscles of one side onlj' are 

 represented. 



In the first figure of Tab. XXXV. the muscles figured in the former plate are supposed to have been 

 cut away, so as to expose many others which would at first have been partly concealed. 



In the second figure of Tab. XXXV. the remainder of the cutaneous muscles are represented. 



Of course the muscles represented in the last two figures would have partly appeared between those 

 figured in Tab. XXXIV., but I thought it would cause confusion if they were inserted more than once. 



All three figures refer to the three thoracic and first four abdominal segments, and are magnified 

 about 8 times. 



i 



