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SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 1 37 



ANTNV 



RST 



HSTL 



ORDS 



Fig. I. — Muscles and labrof rental innervation of the proboscis of Phormia reghuj 

 Meigen, anterior aspect. 



Rst, rostrum; Hstl, haustellum; OrDs, oral disc; 0, ocelli; Br, brain; AntNv, 

 antennal nerve; LrFrNv, labrofrontal nerve; RNv, recurrent nerve; FrGng, 

 frontal ganglion; FrCon, frontal ganglion connective; LrNv, labral nerve; 

 RtFul, retractor of fulcrum; Ge, gena; AntAr, anterior arch of fulcrum; 

 DCbPi, DCbPt, dilators of cibarial pump ; MxPlp, maxillary palpus ; LtPl, lat- 

 eral plate of fulcrum ; Fl.vLni, flexor of labrum ; AdA, adductors of apodeme ; 

 ExHst, extensors of haustellum; Ap, apodeme; DCor, distal cornu of fulcrum; 

 LmEp, labrum-epipharynx ; La, labellum. 



