Body of an insect (Hymenoptera), showing the principal divisions
A, head
B, thorax
C, abdomen
a, antenna
c, compound eyes
m, mandible
s, simple eyes
b, prothorax
d, mesothorax
k, metathorax
1W, fore-wing
2W, hind-wing
n, coxa
o, trochanter
p, femur
r, tibia
t, tarsus
1 to 9 segments of the abdomen.