146 Annals Entomological Society of America [Vol. XIV, 
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Fig. 1. Left side of larva of Prionoxystus robinie, showing the three thoracic 
somites. Sockets of large sete (and lla) numbered by Dyar’s system. Micro- 
scopic setz indicated by letters. Gland of neck plate indicated by x. 
Fig. 2. Left side of larva of Prionoxystus robinie, showing body somites 4 to 7, 
inclusive (abdominal somites 1 to 4, inclusive). Letters and numbers 
as in Fig. 1. 
