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The upper two photos on the left show Heliconius
hecale [Costa Rica]x
atthis
F1 hybrids. The third upper photo shows Heliconius (hecale
[Costa Rica]
x
atthis
)
backcrossed to atthis
.The
three upper pictures on the right show Heliconius (hecale
[Costa Rica]
x
atthis
)
backcrossed to hecale [Costa Rica]
.The
lower pictures show Heliconius (hecale [Costa Rica]
x
atthis
)
x melpomene
[the
variable melpomene stock had acquired some cydno white forewing
band genes after hybridization about 10 generations previously].