Castor semi-looper

Achaea janata

''Achaea janata'', the castor semi-looper or croton caterpillar, is an erebid moth, the caterpillars of which are termed 'semi-loopers' due to their mode of locomotion. It is found from the Indo-Australian tropics and subtropics, extending south to New Zealand and east through the Pacific archipelagoes to Easter Island. It is a major pest of castor throughout the world.
Castor semi-looper moth, Achaea janata, family Erebidae  Achaea janata,Castor semi-looper,Fall,Geotagged,Indonesia

Appearance

Its wingspan is about 60–70 mm. The species has a pale reddish-brown body. Forewings with prominent markings. A short sub-basal waved line and an obliquely waved antemedial and excised postmedial lines are present. Postmedial lines are often black suffused inside them. A speck is found at the end of the cell. A diffuse rufous band runs beyond the postmedial line, Hindwings black with medial white band. Three large white spots can be seen on outer margin, with whitish cilia. Ventral side grey suffused. Forewings with an oblique white postmedial band not reaching the costa. Two crenulate medial lines found on each wing.

Eggs are small, spherical with a greenish color. Pupa is whitish green.

Larva bluish grey speckled with blue black. Head black striped. Lateral and sub-lateral yellowish bands with intervening blue-grey line. A dorsal black stripe bordered by reddish-white spots between fourth and fifth somites. There is a pair of dorsal red tubercles on anal somite. Spiracles and forelegs are red. Four larval instars are completed before pupal stage.

Food

They feed on ''Excoecaria cochinchinensis'' , castor oil plant , both ''Brassica'' and ''Ficus'' species and many more crops like ''Arachis hypogaea'', ''Citrus'', ''Corchorus'', ''Dalbergia sissoo'', ''Dodonaea viscosa'', ''Euphorbia hirta'', ''Glycine max'', ''Lagenaria siceraria'', ''Punica granatum'', ''Rosa chinensis'', ''Solanum lycopersicum'', ''Tamarindus indica'', ''Theobroma cacao'', ''Vigna mungo'' and ''Ziziphus mauritiana''.

References:

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Taxonomy
KingdomAnimalia
DivisionArthropoda
ClassInsecta
OrderLepidoptera
FamilyErebidae
GenusAchaea
SpeciesA. janata
Photographed in
Indonesia