versa. Two constants that are found in nearly all insect wings are the claval (a flexion-line) and jugal folds (or fold line); forming variable and unsatisfactory boundaries. Wing foldings can be very complicated, with transverse folding occurring in the hindwings of Dermaptera and Coleoptera, and in some insects the anal area can be folded like a fan.There are about four different fields found on the insect wings:

:Remigium

:Anal area (vannus)

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