I-] 



MOUTH OF SOLITARY BEES. 



IS 



though the bees belonging to this genus feed their 

 young on honey and pollen, they can only get the 



Fig. is. 



Fig. 17. 



Fig. i3. 



Fig. 19. 



Fio. 15. — Mouth-parts of Andrena, seen from below — pci^ paraglossx ; //, ligula ; 

 pL labial palpi : pm, maxillary palpi ; mt, mentum ; st, stipes ; c, cardn ; 0, eye. 

 Fig. 16.— Of Halictus. Fig. 17.— Of Panurgus. Fig. 18.— Of Halictoides. Fio. 

 ig. — Of Chelostoma. 



former from those flowers in which it is on the 

 surface. In Andrena (Fig 15), Halictus (Fig. 16), 



