Antennae: these are
segmented and vary in the number of segments according to the species.
Apex: the outer-most
part of the leading edge of the forewing.
Cilia: the long, narrow
modified scales on the edge of the wing (especially the outer edge).
Compound eyes: lepidoptera
have two large multi-faceted eyes, placed on each side of the head.
Costa: the anterior or leading vein/ edge of
the forewing.
Coxa: the first segment
(from the body) of the leg.
Dorsum: the posterior or trailing edge of
the forewing/ upper surface of body.
Fascia: lines or bars
across the forewing (see diagram)
Femur: the third section
(from the body) of the leg.
Instar: the larval stage
between two successive skin moults. There are several instars and the
larva may have an entirely different pattern or colour during each instar.
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