328478.fig.001a
(a)
328478.fig.001b
(b)
328478.fig.001c
(c)
328478.fig.001d
(d)
Figure 1: External posterior characteristics of late-instar A. diaperinus: with prominent pygopods ((a) lateral view and (b) ventral view) and unapparent, or much reduced, pygopods ((c) lateral view and (d) ventral view). Pg, pygopod; Py, pygidium; Ur, urogomphus.