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Photo 1 of 6 (c) Shipher (士緯) Wu (吳), some rights reserved (CC BY-NC-SA)

Photo 2 of 6 (c) Aalbert Rebergen, some rights reserved (CC BY)

Photo 3 of 6 (c) 古國順, all rights reserved

Photo 4 of 6 (c) Kit Law, some rights reserved (CC BY-NC)

Photo 5 of 6 (c) Kit Law, some rights reserved (CC BY-NC)

Photo 6 of 6 (c) Kit Law, some rights reserved (CC BY-NC)
1 of 6 photos
Castor Semi-looper
Achaea janata
- Worldwide
- 5,212 observations
- Group
- Insects
About
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.
Summary from Wikipedia, CC BY-SA 4.0.
Recent sightings near Cairns
Research-grade observations within 25 km, newest first.
- Oct 21, 2026Vallely St, Freshwater, QLD, AUObserver: EmellView observation from Oct 21, 2026 on iNaturalist
- Sep 2, 2026Smithfield QLD 4878, AustraliaObserver: icybugsView observation from Sep 2, 2026 on iNaturalist
- Aug 15, 2026Idalia Rd at Scotia Close, Mount Sheridan QLD 4868, AustraliaObserver: mycolepidopteraView observation from Aug 15, 2026 on iNaturalist
- Aug 9, 2026Coral Coast Dr, Palm Cove, QLD, AUObserver: mander45View observation from Aug 9, 2026 on iNaturalist
- Jul 15, 2026Anderson Rd, Woree, QLD, AUObserver: Linus BrinkerView observation from Jul 15, 2026 on iNaturalist
- Jul 15, 2026Queensland, AUObserver: curiousrikkiView observation from Jul 15, 2026 on iNaturalist