© Mouth Organs of Insects. 
tip the tongue. The base is usually broad, and is called 
the mentum, and from this extends the ligula, which in 
bees is a sucking organ or tongue (Fig. 35; 2). Some 
authors call this ligula the labium. 
Fic. 8. 
Head and Mouth-parts of a Drone 
magnified. 
o Simple eyes. 
s Scape of antenna. 
J Flagellum of antenne, 
¢ Compound eyes. 
J Mandibles. 
m Maxille. 
2 Ligula. 
Pp Labial palpi. 
Head of Bee much magnified. 
o Epicranium. m Jaws. 
ee Compoundeyes. mx 2d Jaws. 
aa Antenne. & & Labial palpi. 
¢ Clypeus. é Ligula. 
¢ Labrum. 
On either side, near the junction of the ligula and men- 
tum, arises a jointed organ, rarely absent, called the labial 
palpus (Fig. 8, 4 4), or, together, the labial palpi. Just 
within the angle formed by these latter and the ligula arise 
