Prosotas nora (C. Felder, 1860) - Common Lineblue

Subspecies in India

(1) Prosotas nora ardates (Moore, [1875]) – Indian Common Lineblue
(2) Prosotas nora fulva (Evans, [1925]) – Andaman Common Lineblue
(3) Prosotas nora dilata (Evans, 1932) – Nicobar Common Lineblue

  The subspecies fulva is legally protected in India under Schedule II of the Wildlife (Protection) Act, 1972.

Photo Gallery and Species Biology

This species is historically well-known from S. Myanmar and peninsular Thailand southeastward into Borneo and the Philippines (Corbet et al. 1992; d’Abrera 1982; Ek-Amnuay 2012; Evans 1932; Inayoshi 2015). Recently it has been reported from Chittagong in Bangladesh and the Rakhine (formerly Arakan) State in Myanmar (Larsen 2004). The photographic record of this species from the Chintamani Kar Bird Sanctuary, South 24 Parganas District, Paschimbanga (formerly West Bengal), India, taken on 6 May 2008 (BOI-bp238, published 2015/02/22), represents a significant range extension of the species north-eastward into India from its previously well-known range in SE Asia. It also represents an addition to the Indian butterfly fauna. The species has been seen by Subhankar Patra and Arjan Basu Roy in the Chintamani Kar Bird Sanctuary several times since 2008, although we do not know of any photographic records apart from the one mentioned above.

  The subspecies fulva is legally protected in India under Schedule II of the Wildlife (Protection) Act, 1972.
StateJanFebMarAprMayJunJulAugSepOctNovDecNo date
Andaman and Nicobar Islands UT141
Andhra Pradesh2113
Arunachal Pradesh1652172
Dadra & Nagar Haveli UT
Daman & Diu UT
Himachal Pradesh121111
Jammu and Kashmir UT1
Ladakh UT
Madhya Pradesh1712514
Puducherry UT
Tamil Nadu211111152
Uttar Pradesh11
West Bengal2222131122
Mallotus philippensis (P. Churi pers. obs. 2017) (Euphorbiaceae). Acacia (Robinson et al. 2010), Acacia caesia (Bell 1918c; Wynter-Blyth 1957; Robinson et al. 2010), Acacia catechu (Wynter-Blyth 1957; Kunte 2000), Acacia torta (Wynter-Blyth 1957; Kunte 2000), Mimosa invisa (V.C. Balakrishnan pers. obs. 2017), Pithecellobium dulce (Wynter-Blyth 1957; Kunte 2000) (Fabaceae). Allophylus cobbe (Kalesh & Prakash 2015) (Sapindaceae).

Key Reference:
Nitin, R., V. C. Balakrishnan, P. V. Churi, S. Kalesh, S. Prakash, and K. Kunte. 2018. Larval host plants of the butterflies of the Western Ghats, India. Journal of Threatened Taxa, 10:11495–11550.

For the complete list of larval host plants of Indian butterflies, see the page on larval host plants.

Corbet, A. S., H. M. Pendlebury, and J. N. Eliot. 1992. The Butterflies of the Malay Peninsula. 4th revised edn. Malayan Nature Society, Kaula Lumpur.
d’Abrera, B. 1982. Butterflies of the Oriental Region. Part I: Papilionidae, Pieridae & Danaidae. Hill House, Victoria.

Ek-Amnuay, P. 2012. Butterflies of Thailand. 2nd edn. Baan Lae Suan (=Amarin) Printing & Publishing Co., Bangkok.

Evans, W. H. 1932. The identification of Indian butterflies. 2nd edn. Bombay Natural History Society, Mumbai.

Inayoshi, Y. 2015. A Check List of Butterflies in Indo-China (chiefly from Thailand, Laos and Vietnam). Accessed 22 February 2015. URL:

Larsen, T. B. 2004. Butterflies of Bangladesh – An Annotated Checklist. IUCN Bangladesh Country Office, Dhaka.

Page citation

Saji K and A. Soman 2023. Prosotas nora (C. Felder, 1860) – Common Lineblue. In Kunte, K., S. Sondhi, and P. Roy (Chief Editors). Butterflies of India, v. 4.12. Published by the Indian Foundation for Butterflies. URL:, accessed 2023/12/08.