1978] 
Holldobler & Engel — Glands in Ants 
327 
Figure 28. Above: SEM photograph of abdominal tip of Liometopum apicu- 
latum. “PG” indicates where the pygidial gland opens between 6 th and 7 th terga. 
“A” indicates opening of anus; SG = sternal gland (Pavan’s gland). Below: Sagital 
section through gaster of L. apiculatum. PG = reservoir of pygidial gland; 7. = 7 th 
tergum. 
