94 



THE ANATUMi' Oi' TUE UOJN'EV BEE. 



Vfent 



are based chiefl^y on the work of Planla, published in 188S. Cheshire 

 (188(')) states that the stomachs of queens contain a substance which 

 is " microscopically indistinguishable from the so-called royal jelly,'* 

 scarcely a pollen grain being discoverable in it. If this is so, it would 

 seem to prove that the queen is fed this substance by the worker, for 

 the stomach of the latter is inAariably filled with a dark-brown slime 



containing a vary- 

 ing amount of pol- 

 len and in no way 

 resembling roA^al 

 jelly. Cheshire 

 further says that 

 before impregna- 

 tion the stomachs 

 of the queens al- 

 ways contain pol- 

 len, the royal jelly 

 being found in 

 them tAvo or three 

 days after impreg- 

 nation, when all 

 traces of pollen 

 have disappeared. 



The n a r r o av 

 oesophagus (fig. 42, 

 CE) is a simple tube 

 with a thick chiti- 

 nons lining and 

 muscular walls. 

 The epithelium ( fig. 

 45) is very rudi- 

 mentary, its cell 

 boundaries being 

 lost and its nuclei 

 {Nti) appearing as 

 if imbedded in the 

 lower laj^ers of the 

 thick transparent 

 intima (Int). The muscles are disposed in an outer layer of trans- 

 verse fibers {TMcl) and an inner layer of longitudinal ones (LMcl). 

 The honey stomach (fig. 42, IIS) is simply an enlargement of the 

 posterior end of the esophagus lying Avithin the anterior part of 

 the abdominal cavity. It is best developed in the Avorker (fig. 44 A), 

 but is present also in the queen (B) and in the drone (D). The 

 organ should perhaps have been named the nectar stomach, for its 



Fig. 44. — X, honey stomach (J/S) of worker with posterioi- end 

 of oesophagus (ffi), proventriculus (Pvent). and anterior 

 pnd of ventriculus (Vent); B, same of qiioen ; C, huuoy 

 stomach (118) cf worlicr mostly cut away exposing the 

 stomach-mouth (nn) of proventriculus (Pvent) leading into 

 ventriculus (Vent) ; D, honey stomach of drone. 



