[ lo structural Peculiarities of Workers, 



Toiiffue of a Worker Bc'\ much utagnijied. 



mx mx Maxilla;. 



c c Cardos. 

 sv, Si Stipes. 

 /, / Laciniffi. 

 s Colorless meinbnir.c. 

 S Sheath. 

 A MaxHlre and labium. 



mp^ mp Max. palpi. 

 o Sub-mentum. 

 VI Men turn. 

 /,/ Parag^lossx. 

 c. B Lig-ula, with sac 

 distended. 

 C Cross-section of 

 hgula. 



k k Labial palpi. 

 t Tongue. 

 f Funnel. 

 R Tubular rod. 

 ss Colorless meiiibr. 

 f Funnel, 

 R Tubular rod. 



(The above figure is drawn to the same scale as Fig-, 27.) 



