Morphology of the Prosternal Glands of Heliconius erato (Lepidoptera: Nymphalidae)
Figure 4
Impair prosternal gland of Heliconius erato phyllis under scanning electron microscopy. (a) Detail of the transverse opening slit in a fifth instar, anterior view; (b) sensilla on the opening margin (indicated by open arrowheads in (a)); (c) detail of a protruded gland in a first instar, latero-ventral view; (d) cisterns in detail, showing exudation (indicated by arrowheads in (c)). Gs: glandular secretion; Se: sensillum. Scale bars: 100, 5, 100, 2 m, respectively.
