26 THE BIOLOGY OF INSECTS 



b Ph 



Fig. io. — Dorsal Dissection of Worker Honey Bee (Apis mellifica), 

 showing Digestive and Nervous Systems, ph, pharynx ; oe, gullet ; 

 cr, crop or " honey-stomach " ; pv, proventriculus ; v, ventriculus or 

 chyle-stomach (mid-gut) ; il, ileum ; co, colon ; sg, salivary glands ; 

 phg, pharyngeal glands ; Mt, Malpighian tubes ; (chyle stomach and 

 intestines are displaced to left to expose the nerve-cords connecting the 

 chain of ganglia (g) ; b, brain, the three simple eyes (ocelli) above it ; 

 e, compound eye. X lo. Adapted from R. E. Snodgrass, Anatomy of 

 Honey Bee (U.S.D.A.) 1910. 



