File:Wheeler and Holldobler 1985 fig 10 set.jpg

Summary
Fig. 10. Z. setulifer (Ancon, Panama). Queen. a. Head is heavily encrusted with material, b. Setae on head, with encrusting material.

Wheeler, D. E. and B. Hölldobler. 1986 (1985). Cryptic phargmosis: the structural modifications. Psyche. 92:337-353. DOI:10.1155/1985/76848