Figure 8. A model for the system-dependent spot determination of the third and fourth arrays on the ventral hindwing of Zizeeria maha.

(a) Temporal sequence of events of dynamic signals driving spot determination. Signals are released from the prospective discal spot (red). Propagating signals from the discal spot are drawn in red arrows and green dots. (b) The lycaenid central symmetry system of the ventral hindwing defined by this species in reference to mutant phenotypes. The central symmetry system, shaded in pink, is composed of the discal spot (core element) and its surrounding third and fourth spot arrays (paracore elements). Spot array is abbreviated as s.a. in this figure.