Mar. 3, 1919 



Species of Pegomyia Alining Dock 



233 



Fig. 1.— .4, pharyngeal skeleton of first instar, Pegomyia calypCrata Zett, ; B, pharyngeal skeleton of second 

 instar.P. calyptrala; C,ma.ndihulnr sclerite of second instar, P. calypirata: D, pharyngeal skeleton of thjrd 

 instar, P calyptrata; E, pharyngeal skeleton of first instar. P. affinis Stem.; F, mandibular sclerite of 

 first instar, P. affinis; G, pharyngeal skeleton of second instar, P. affinis; H, pharyngeal skeleton of third 

 instar, P. affinis. 



