Earias biplaga, the spiny bollworm, is a moth in the family Nolidae. The species was first described by Francis Walker in 1866. It is found throughout subtropical Africa including Atlantic and Indian Ocean islands."Spiny bollworm (Earias biplaga)". Plantwise Knowledge Bank. Plantwise. Retrieved November 17, 2017.
Their length is about 10–12 mm, wingspan about 18–25 mm and it is characterised by a dark purplish-brown terminal fringe on the forewing."74.0121 [B&F: 2419] Spiny Bollworm (Earias biplaga) (Walker, 1866)". Hantsmoths. Retrieved November 17, 2017.
The larvae feed on species of Fabaceae and Malvaceae. It is considered as a pest to cotton and cacao.
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