1981] Holldobler — Communication in Orectognathus 
251 
Fig. 4. (a) Sagittal section through pygidial gland of a media of Orectognathus 
versicolor. PG = pygidial gland; R = reservoir of pygidial gland; GE = glandular 
epithelium, (b) Close-up of glandular epithelium (GE) under the cuticular structure 
(CS) of pygidium. 
