Taxonomic Information
Dichromia Guenée, 1854 species known from the Indian subcontinent.
Dichromia cognata (Moore, 1885). Sri Lanka (TL); India: Himachal Pradesh (Kulu).
Dichromia indicatalis (Walker, [1859]). India: Assam, Sikkim, Manipur, Meghalaya, Mizoram, Nagaland, Tripura, West Bengal, Nilgiris, Uttar Pradesh, Himachal Pradesh, Uttarakhand.
Dichromia laesalis (Walker, [1859]). India: Meghalaya, N. India.
Dichromia occatus (Moore, 1882). Sri Lanka; India: Meghalaya (Khasi Hills), Himachal Pradesh, Kerala.
Dichromia opulenta (Christoph, 1877). Pakistan.
Dichromia orosia Meyrick, 1913. Sri Lanka.
Dichromia pullata Moore, 1885. Sri Lanka (TL); India: Maharashtra, Uttarakhand, Himachal Pradesh, Goa, Karnataka .
Dichromia quadralis Walker, [1859]. India: "North Hindustan", Meghalaya (Khasi Hills), Uttarakhand, West Bengal, Sikkim, Arunachal Pradesh, Nagaland, Andaman & Nicobar Is.
Dichromia sagitta (Fabricius, 1775). India: Assam, Arunachal Pradesh, Manipur, Meghalaya, Mizoram, Nagaland, Tripura, Karnataka, Tamil Nadu, Himachal Pradesh, Andhra Pradesh, Maharashtra, Sikkim, West Bengal.
Dichromia thermesialis (Walker, 1866). Sri Lanka; India: Meghalaya (Cherrapunji), West Bengal (Darjeeling).
Dichromia triangularis (Moore, 1882). Myanmar; India: Meghalaya (TL: Khasi Hills).
Dichromia trigonalis Guenée, 1854. India: Meghalaya, central India, NE India, Himachal Pradesh, Jammu and Kashmir, Ladakh, Uttarakhand.
Dichromia triplicalis Walker, [1859]. India: South India.
Photo Gallery and Species Biology
, 
Diagnosis (MOB). The forewings are an ashy grey with a fine triarcuate, oblique postmedial that can have a diffusely darker band immediately basad. The antemedial is irregularly angled, the angle rather rounded and with its concavity basad. The posterior to distal border of the apical patch is stepped, dentate, zigzag. See also the taxonomic note.
Taxonomic note (MOB). Some forms of D. triangularis Moore comb. n. (Indian Subregion, Burma, Taiwan) are very similar, but the posterior boundary of the forewing apical mark is smoothly curved in triangularis and zigzag to dentate in occatus. The black-with-white spots within the apical mark are aligned at right angles to the costa in occatus but form a chevron in triangularis. There is no occatus form to match that of triangularis with a dark medial triangle based on the forewing costa.
| State | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | No date |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Andaman and Nicobar Islands | |||||||||||||
| Andhra Pradesh | |||||||||||||
| Arunachal Pradesh | |||||||||||||
| Assam | |||||||||||||
| Bihar | |||||||||||||
| Chandigarh | |||||||||||||
| Chhattisgarh | |||||||||||||
| Dadra & Nagar Haveli | |||||||||||||
| Daman & Diu | |||||||||||||
| Delhi | |||||||||||||
| Goa | |||||||||||||
| Gujarat | |||||||||||||
| Haryana | |||||||||||||
| Himachal Pradesh | |||||||||||||
| Jammu and Kashmir UT | |||||||||||||
| Jharkhand | |||||||||||||
| Karnataka | |||||||||||||
| Kerala | 1 | 1 | 1 | ||||||||||
| Ladakh UT | |||||||||||||
| Lakshadweep | |||||||||||||
| Madhya Pradesh | |||||||||||||
| Maharashtra | 1 | ||||||||||||
| Manipur | |||||||||||||
| Meghalaya | |||||||||||||
| Mizoram | |||||||||||||
| Nagaland | |||||||||||||
| Odisha | |||||||||||||
| Paschimbanga | |||||||||||||
| Pondicherry | |||||||||||||
| Punjab | |||||||||||||
| Rajasthan | |||||||||||||
| Sikkim | |||||||||||||
| Tamil Nadu | 1 | ||||||||||||
| Telangana | |||||||||||||
| Tripura | |||||||||||||
| Uttar Pradesh | |||||||||||||
| Uttarakhand | |||||||||||||
| West Bengal | |||||||||||||
| Total | 1 | 1 | 1 | 1 | 1 |
- Hypena occatus Moore, 1882; Descr. Indian lep. Atkinson (2): 191; TL: Cherra Punji; Khasia Hills. Text at https://archive.org/details/descriptionsofne00hewi/page/191/mode/1up?view=theater
- Hypena hampsonialis Wileman, 1911; Trans. ent. Soc. Lond. 1911 (2): 261; TL: Japan, Yamato, Yoshino. Text at https://archive.org/details/transactionsofen1911roya/page/261/mode/1up?view=theater
- Hypena crassipalpis Butler, 1889; Ill. typical Spec. Lep. Het. Colln Br. Mus. 7: 85, pl. 133, f. 16; TL: Dharmsala. Text at https://archive.org/details/illustrationsoft07brituoft/page/85/mode/1up?view=theater. Plate at https://archive.org/details/illustrationsoft07brituoft/page/n158/mode/1up?view=theater
- Dichromia occatus; [MOB17], 192, f. 444, pl. 8.
- https://www.mothsofborneo.com/part-17/hypeninae/hypeninae_5_10.php
- https://www.inaturalist.org/taxa/202518-Dichromia-occatus
Page citation
Anonymous 2026. Dichromia occatus (Moore, 1882) – . In Sondhi, S., R.P. Singh, G. Iyer, J. D'silva and K. Kunte (Chief Editors). Butterflies of India, v. 4.12. Published by the Indian Foundation for Butterflies. URL: https://www.mothsofindia.org/dichromia-occatus, accessed 2026/04/03.