Lepidoptera of the Chagos Archipelago consist of both the butterflies and moths recorded from the islands of the Chagos Archipelago, a group of seven atolls comprising more than 60 tropical islands in the Indian Ocean. The archipelago consists of five emergent atolls, Diego Garcia, Egmont, the Great Chagos Bank, Peros Banhos and Salomon. There are also several submerged atolls and vast banks and shoals. The whole territory covers 54,400 km2 of the Indian Ocean, of which the archipelago covers about 37,500 km2. The Chagos Archipelago has been British territory since 1814 and was made a dependency of the United Kingdom in 1965.
According to a recent estimate, there are a total of 63 Lepidoptera species present in the Chagos Archipelago.
Butterflies Lycaenidae Petrelaea dana (de Nicéville, )
Nymphalidae Hypolimnas bolina (Linnaeus, 1758) (ssp. Hypolimnas bolina euphorioides) Junonia villida Godart, 1819 (ssp. Junonia villida chagoensis)
Macro moths Arctiidae Brunia antica (Walker 1854) Utetheisa pulchelloides Hampson, 1907
Geometridae Comostola pyrrhogona (Walker, 1866) Glaucoclystis immixtaria (Walker, 1862) Scopula actuaria (Walker, 1861)
Noctuidae Amyna axis (Guenée, 1852) Amyna natalis (Walker, 1858) Anomis sabulifera Guenée, 1852 Anticarsia irrorata (Fabricius, 1781) Callopistria maillardi Guénée, 1862 Chasmina candida (Walker, 1865) (misidentified as Chasmina tibialis) Chrysodeixis eriosoma (Doubleday, 1843) Chrysodeixis illuminata (G.S. Robinson, 1968) Condica conducta (Walker, ) Eublemma cochylioides (Guenée, 1852) Mocis frugalis (Fabricius, 1775) Spodoptera litura (Fabricius, 1775) Spodoptera mauritia (Boisduval, 1833) Stictoptera hironsi Barnett, Emms & Holloway, 1998 Thyas coronata (Fabricius, 1775) Thyas honesta Hübner, 1806
Nolidae Garella nilotica (Rogenhofer, 1881)
Sphingidae Acherontia lachesis (Fabricius, 1798) Agrius convolvuli (Linnaeus, 1758) Cephonodes picus (Cramer 1777) Hippotion velox (Fabricius, 1793) Macroglossum corythus Walker 1856
Micro moths
Cosmopterigidae Labdia tentoria Meyrick, 1911
Gelechiidae Brachmia autonoma Meyrick, 1910
Hyblaeidae Hyblaea puera (Cramer, 1777)
Pterophoridae Megalorhipida defectalis (Fabricius, 1793) Lantanophaga pusillidactylus (Walker, 1864)
Pyralidae Aethaloessa calidalis (Guenée, 1854) (ssp. Aethaloessa calidalis calidalis) Achyra massalis (Walker, 1859) Bradina admixtalis Walker, 1859 Cnaphalocrocis poeyalis Boisduval, 1833 Culladia admigratella Walker, 1863 Diaphania indica (Saunders, 1851) Endotricha mesenterialis (Walker, 1859) (ssp. Endotricha mesenterialis mesenterialis) Etiella grisea Hampson, 1903 (ssp. Etiella grisea grisea) Eurrhyparodes tricoloralis (Zeller, 1852) Galleria mellonella (Linnaeus, 1758) Herpetogramma licarsisalis (Walker, 1859) Hydriris ornatalis (Duponchel, 1832) Lamprosema chagosalis T. B. Fletcher, 1911 Lamprosema niphealis Walker, 1859 Lamprosema salomonalis T. B. Fletcher, 1911 Mabra eryxalis (Walker, 1859) Omiodes indicata (Fabricius, 1775) Omiodes poeonalis (Walker, 1859) Parotis suralis (Lederer, 1863) 1 undescribed Phycita species Sameodes cancellalis (Zeller, 1852) Spoladea recurvalis (Fabricius, 1775) Sufetula chagosalis (T. B. Fletcher, 1910) Sufetula minimalis T. B. Fletcher, 1911 Synclera univocalis (Walker, 1859)
Tineidae Erechthias molynta (Meyrick, 1911)
Tortricidae Adoxophyes privatana (Walker, 1863) Dudua aprobola (Meyrick, 1886) Thaumatotibia encarpa (Meyrick, 1920)
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