Morphological Caste Differences in Three Species of the Neotropical Genus Clypearia (Hymenoptera: Polistinae: Epiponini)

Figure 3

Relative age based on the pigmentation of the 5th gastric sternite of queens and workers in species of genus Clypearia. (1) Without pigmentation or incipient; (2) little brown; (3) dark brown.