REFERENCE LETTERS, PLATES I TO Vll 

 Letters not included below will be found in the descriptions 



of the plates 



a. Antenna. 



a. p. Antennal plate. 



b. c. Buccal cavity. 



c. Cardo. 

 cl. Clypeus. 



d. b. c. Dilator muscle of the buccal cavity, 

 d. d. ph. Dorsal dilator muscle of the pharynx. 



d. ph. Dilator muscle of the pharynx. 



e. Eye. 



ep. Epipharynx. 



eps. Epistomal orifice. 



f. ch. Food channel. 



g. Gena. 

 gl. Galea. 



hy. Hypopharynx. 



i. t. Intracranial tunnel, 



1. ep. Labrum-epipharynx. 



Ib. Labium. 



Ibl. Labellum. 



Ir. Labrum. 



m. Mouth. 



mb. Membrane. 



mn. Mandible. 



mt. Mentum. 



mx. Maxilla. 



oc. f. Occipital foramen. 



oes. CEsophagus. 



p. Palp. 



ph. Pharynx. 



pr. Prestomum. 



si. d. Salivary duct. 



si. p. Salivary pump or valve. 



sm. Submentum. 



st. Stipes. 



tr. Trachea. 



