144 



THE ANATOMY OF THE HONEY BEE. 



Ost, 



Ov, 



o'v, 



OvD, 



OvO, 



P, 



IP, 2P, 

 3P, 4P, 

 PA, 

 Pel, 

 PD, 



Pd, 



Pen, 



PenB, 



Peps, 



Pge, 



Pgl, 



Pgu, 



Ph, 



Phy, 



PI, 



pi, 



Plf, 



Pig, 

 Pip, 



Pmh, 



'PMcl, 



PN, 



pn. 



PNP, 

 PNR, 

 Pph, 



PR, 



Prb, 



PrliFn, 



PS, 



Psc, 



Pscl, 



Psl, 



PsnC, 



PsnSc, 



ostium or lateral aperture of heart. 



ovary. 



ovarlole, individual ovarian tube. 



oviduct. 



opening of vagina or median oviduct. 



paraptera, small pleural plates belowr base of wing, typically two 



episternal paraptera or preparaptera (IP and 2P) before pleural 



wing process {WP)^ and two epimeral paraptera or postparap- 



tera {3P and JfP) behind wing process, 

 episternal paraptera, preparaptera. 

 epimeral paraptera, postparaptera. 

 arm of pleural ridge, 

 postclypeus. 

 muscle disc of episternal paraptera, giving insertion to pronator 



muscle (not present in the bee), 

 peduncle, 

 penis. 



bulb of penis, 

 preepisternum. 

 postgena. 

 paraglossa. 

 pregula. 

 phragma. 

 pharnyx. 

 pleurum. 



subdivision of pleurum. 

 palpifer, palpus-carrying lobe of maxilla, 

 palpiger, palpus-carrying lobe of labium, 

 palpus. 



peritrophic membrane, 

 pronator muscle, 

 postnotum or pseudonotum, the second or postalar tergal plate of 



the wing-bearing segments of most insects, the " postscutellum " 



of higher orders, 

 small rod connecting postscutellum (postnotum PN) with upper 



edge of epimerum, probably a detached piece of the former (see 



figs. 22 and 24). 

 posterior notal wing process, 

 posterior marginal ridge of notum. 

 posterior phragma or postphragma of any tergiim, carried by the 



second notal plate or postnotum (PA), the "postscutellum" of 



higher forms, 

 internal pleural ridge, the entopleurum, marked externally by 



pleural suture (PS). 

 proboscis, 

 fossa of proboscis, 

 pleural suture, external line separating episternum and epimerum, 



marking site of internal pleural ridge, 

 presternum, 

 prescutum. 



postscutellum ( postnotum ) . 

 poststernellum. 

 poison canal of sting. 

 poison sac of sting into which opens the acid gland (AGl). 



