611 
A more advanced moulted stage is represented in fig. 6. Beneath 
the old cuticle, which encloses the body anteriorly the new cuticle 
ee Keut. 
Eene 
-~--- b.ph. 
-----].cut. 
Fig. 6. 
Fig. 6. Anterior extremity of a moulting female. Beneath the larval cuticle 
with broad rings the imaginal cuticle of the adult. The imaginal rings are so 
narrow that they could not be drawn at this low magnification (« 75). The 
released cuticular lining of the larval pharynx is visible. Total length 8.8 mm., 
catch N°. 42. 
is found. The cuticular covering of the mouth-cavity and of the 
corpus pharyngis of the larva is distinctly visible in front. Before 
the pharynx lies the imaginal mouth-cavity, in which one pharyngeal 
tooth is visible. Behind it lies the corpus pharyngis, gradually passing 
over into the isthmus, which again continues into the bulbus pharyngis. 
The front part of the body of moulting ¢* and 2° presents no 
