forewing

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Related to forewings: dipterous, dipterous insect

forewing

(fôr′wĭng′)
n.
Either of a pair of anterior wings of a four-winged insect.
References in periodicals archive ?
Description: They are commonly known as black swallowtail butterfly, forewings, generally they are black in appearance, forewings are completely black with light yellow streaks making a thin band on upper side.
Diagnosis: morph 1: forewings gray with black scales mixed, in the middle one black band along the base of wings to costal termen, subterminal band with black scale, dentate, tegulae and patagiae gray mixed with piliform black scales, eyes ciliate covered around its.
According to HALL (2005), a small cluster of genera possessing five forewing radial veins was recognized first as Eurybiini by REUTER (1896: 153-154) with Eurybia Illiger, 1850, as type genus.
Most but not all true bugs have leathery looking forewings that fold back on the body and become lacy toward the tips, where they overlap.
The moths are easily identified because of their size and the characteristic "nine-shaped" eyespots on the forewings.
Seen from above, this butterfly is attractive and distinctive, with blackish forewings and iridescent blue-black hind-wings marked by a row of arrowhead-shaped white spots.