File:Wheeler and Holldobler 1985 fig 7 por.jpg

Summary
Fig. 7. Z. pallensporrasi (BCI, Panama). Clean soldier, a. Cephalic disc covered with brush setae, b. Close-up of large brush setae.

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