Isoplenodia arrogans is a moth of the family Geometridae. It is found on Madagascar.Afro Moths
The male of this species has a wingspan of 18-19mm, the female of 23mm. Males & females have pectinated antennaes.Prout, L. B. 1932c. New genera and species of Sterrhinae (Fam. Geometridae). - Novitates Zoologicae 37:229–251 - on page 237
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