18 
CHAPTER IV. 
THE HEAD OF THE BEE. 
The Different Parts — Head of Worker, Queen^ and Drone — 
Compou7td and Shyiple Eyes — Cheeks — A^itenncE — Number of 
Joints — Mouth of Bees — Single and Double Parts — Labrum, 
Mandibulce, Labitwi, Me7itu7n— Labial Palpi and Maxillce 
— Suckhig Ttibe For77ied — Ligula a7td its Muscles — Hairs 
and PapillcF — Bouto7i — Sheath — Rod — Shigle a7id Double 
Tubes — Hoiv Liqiiids are Sucked Up — Hoiv S7nall a7id Large 
Qua7itities are Take7i — Connexion with (Esophagus — Gu77i 
E'lap — Expa7isio7i a7id Contraction of Tubes — Tongue in 
Repose. 
The head (Fig. 6) consists of the verteoi.^ or crown 
( (3! ) ; the gence., or cheeks ( ^ ) ; the face (below the 
vertex), the clypeus, or nose {c) ; the compound eyes 
{d) \ the ocelli or stetnmata.^ simple eyes (/); the 
aniennce, or feelers (/) and the trophi, or organs of 
the mouth collectively (/, h, g, e). 
The head {caput) differs in the three sorts of bees 
in shape, size, as well as in the disposition of the 
hairs. 
The worker’s head (Fig 6 and Fig 7, a) is triangular 
in appearance, slightly incurved at the vertex, and 
very wide at this part, with thickly-set hairs, and 
tapers rapidly towards the mouth. That of the 
queen (Fig. 7, b) is more heart-shaped, rather flattened 
at the vertex, and densely covered with long hairs. 
The head of the drone (Fig. 7, c) is in shape circular 
