Ravanoa xiphialis ( Walker, 1859 )

Rao, B. Sumit Kumar & Sivaperuman, Chandrakasan, 2025, Contribution to the knowledge of Pyraloid moths (Lepidoptera, Pyraloidea) from the Andaman and Nicobar Islands, India, Journal of Insect Biodiversity and Systematics 11 (1), pp. 129-149 : 138-139

Ravanoa xiphialis ( Walker, 1859) ( Figs 2O, 6F)

Zebronia xiphilais Walker, 1859:483 . TL: Sarawak, Borneo.

Zebronia bilineolalis Walker, 1866:1350 . TL: Mysol.

Material examined. 1♀, India, Andaman and Nicobar Islands, Great Nicobar Islands, Great Nicobar Biosphere Reserve, Watch Tower , 08-XI-2018, coll. K.C. Gopi and Party.

Diagnosis. Wingspan 22 mm. Foreground colour white on both the wings, forewings with basally broader black costal margin, antemedial and medial straight black bands, postmedial band inwardly connected with the medial band, broad sub-terminal band, black terminal band on forewing. In female genitalia, papillae anales small, anterior apophysis longer than the posterior pair, ductus bursae short, antrum sclerotized, corpus bursae broad and elongated with small scobination of signum.

Distribution. Burma, Borneo ( Sarawak), Malaysia India (Kerela, Tripura), Sri Lanka ( Singh et al., 2022b).

Remarks. Ravanoa , a genus represented by a single species, is now recorded for the first time on Great Nicobar Island in the Nicobar archipelago. While previously documented in the Indian states of Kerala and Tripura, this new finding expands the known range of the species to the Nicobar Islands.