1978] 
Holldobler & Engel — Glands in Ants 
313 
Figure 13. SEM photograph of the sternal gland area between the 6 th and 7 th 
sterna of Paltothyreus tarsatus. The picture below is an enlargement of the lighter 
rectangle in the picture above. The openings of the glandular cell channels in the 
intersegmental membrane are clearly visible. 
