INDEX TO PLATES. XV 



Fig". '>. Anatomy of sting : a, sheath ; b, piercers ; 

 r, site of poison-bag. 



Fig. 6. Termination of piercer (of sting) highly mag- 

 nified. 



Pl. yn page 60 



Fig. 1. Digestive oi^;ans of Bee : a, oesophagus, or 

 gullet : b, crop, or honey-bag ; c, stomach ; 

 d, biUarv tubesj e, colon. 

 Fig. i. Kespiratory and nervous system (the por- 

 tion to the left is one half of the respiratory 

 system, similar organs being situated on the 

 right side) : a, a', respiratory sacs ; b, thoracic 

 duct and lai^er trachese ; c, abdominal duct; 

 d, respiratory sacctdi; — (the white portion 

 beneath the respiratory organs represents 

 the nervous system) : a, a, cephalic ganglia; 



b, infca-oesophageal ganglion; t', thoracic 

 ganglion; rf, e, f, g, h, abdominal gangUa; 

 o, optic nerves ; n a, nerves of antennse ; 

 '2, 3, 4, 6, 6, 7, nerves of members of loco- 

 motion. 



Fig. 3. Stigma, or respiratory aperture. 



Fig. 4 Portion of trachea, or respiratory tube. 



Pl. ^in 102 



Fig. 1. Ovaries of Queen-bee i'« situ : a, narrow ends, 



and 6, wide ends of ovarian tubes. 

 Fig. 2. Outiine of ovaries, showing (a&b, as above) : 



c, c, proper oviducts ; e, common oviduct ; 

 s, spermatheca ; /, I, secreting tubes of ditto ; 

 p, poison-secreting tube. 



Fig. 3. Portion of ovary : d, ova arrested in their pro- 

 gress, before passing through tubes, at 6, into 

 the proper oviduct, c. 



