THE HEAD OE THE BEE. 
21 
The face has a longitudinal carina, or prominent 
ridge, down its centre, which lies between the eyes, 
descending from the vertex to the base of the clypeus. 
The gencE, or cheeks, descend from the vertex laterally 
behind the compound eyes (Fig. 6, b). 
The a?iten7icE, of which there are two, are inserted 
in the centre of the face on each side of the carina 
(Fig. 6,/) and just above the clypeus. They are 
cylindrical and are jointed to the head by a hemi- 
spherical joint (radicuJa), and being connected with 
the head by muscles, are capable of movement in all 
directions. 
The antennae comprise the scape.^ or basal joint 
(Fig. 8, ^), and the flagellu^n., or terminal apparatus 
(Fig. 8, Z>), which are connected together by a thin 
membrane of chitine at c (Fig. 8). 
The scape and flagellum (Kirby) collectively 
number thirteen joints in the drone and only twelve 
in the queen and worker. The relative lengths of 
the joints vary, the scape being the longest, and is in 
the drone about one-fifth and in the queen and 
worker one-fourth of the entire length of the antennae. 
Examined with the microscope under a magnifying 
