PLATE 3 
SPALANGIA MUSCIDARUM 
EXPLANATION OF FIGURES 
7 Internal anatomy of the tracheate larva (diagrammatic). 
8 Cross section of the posterior part of the salivary gland. 
9 A portion of the peritrophic membrane showing its weak granular struc- 
ture. 
10 A larval oenocyte from the tracheate larva (X 1720). 
11 and 12 Degenerating larval oenocytes from an advanced pupa. 
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