FIGURE 102. H. melpomene vulcanus Butler, 1865 in Alternative facts: a reconsideration of putatively natural interspecific hybrid specimens in the genus Heliconius (Lepidoptera: Nymphalidae)

FIGURE 102. H. melpomene vulcanus Butler, 1865 (dorsal, ventral). Colombia: [Valle del Cauca], Río Dagua. This is one of the most striking forms of H. melpomene, with a bluish iridescence on the dorsal surface and a fine fringe of white scales on the wing margins. Also note that the transverse yellow HW band is only expressed on the ventral surface. (image source: https://cliniquevetodax.com/Heliconius/pages/melpomene%20vulcanus.html).