COI haplotype (upper) and ITS-2 allele (lower) networks inferred under statistical parsimony (0.95 probability). Pie size proportional to number of individuals which exhibited the same haplotype/alleles. White circles represent missing haplotypes/alleles. Colours correspond to islands (colour codes in upper box). For the COI haplotypes only the network (3) including H. insularum / H. maderiana haplotypes showed (each remaining nominal species were resolved as independent networks). ITS-2 alleles boxed per species, except for H. insularum / H. maderiana. Haplotype/allele labels for H. insularum in bold and italics, H. maderiana in condensed bold and italics, not assigned in light italics (see lower box legend).