|Spotless grass yellow|
Eurema laeta, the spotless grass yellow, is a small butterfly of the family Pieridae (the yellows and whites), which is found in India, Sri Lanka, China, Indochina, Japan, and onwards to Australia.
Wet form: Male. Upper-side pale yellow, basal areas slightly irrorated with grey-black scales. Fore-wing with a broad vinescent-black outer marginal band, which curves from middle of the costa to upper median, below which it is sinuated to lower median, its posterior end being deeply excavated to the angle. Hind-wing with a distinctly defined black slender complete band; and a salmon-coloured patch of matted scales between the costal and sub-costal vein. Underside paler yellow, unmarked, except that a very faint indication of marginal dots and a small upper discocellular streak on both wings, and a dot above the cell and discal transverse streaks on hind-wing. Fore-wing with a sub-basal oval patch of compactly matted salmon-coloured scales, which extend below and partly above the basal portion of the median vein. Female. Upper-side paler yellow. Fore-wing with the outer band somewhat broader. Hind-wing with the band broader anteriorly and complete; no costal patch. Underside as in male. No sub-basal patch of salmon-coloured scales.
Dry form: Male. Upper-side. Fore-wing with the band similar to the wet form, its posterior end more excavated. Underside with the ordinary markings more apparent. Female. Upper-side. Fore-wing with the posterior end of the band obsolescent. Hind-wing with the band posteriorly narrower and more or less broken. Underside as in the male.
In Hyderabad, India
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- One or more of the preceding sentences incorporates text from a work now in the public domain: Swinhoe, Charles (1905–1910). Lepidoptera Indica. Vol. VII. London: Lovell Reeve and Co. pp. 40–42.
- Varshney, R.K.; Smetacek, Peter (2015). A Synoptic Catalogue of the Butterflies of India. New Delhi: Butterfly Research Centre, Bhimtal & Indinov Publishing, New Delhi. p. 68. doi:10.13140/RG.2.1.3966.2164. ISBN 978-81-929826-4-9.
- Savela, Markku. "Eurema laeta (Boisduval, 1836)". Lepidoptera and Some Other Life Forms. Retrieved July 1, 2018.
- One or more of the preceding sentences incorporates text from a work now in the public domain: Bingham, C.T. (1907). The Fauna of British India, Including Ceylon and Burma. II (1st ed.). London: Taylor and Francis, Ltd. pp. 248–249.
- Evans, W.H. (1932). The Identification of Indian Butterflies (2nd ed.). Mumbai, India: Bombay Natural History Society.
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- Gay, Thomas; Kehimkar, Isaac David; Punetha, Jagdish Chandra (1992). Common Butterflies of India. Nature Guides. Bombay, India: World Wide Fund for Nature-India by Oxford University Press. ISBN 978-0195631647.
- Kunte, Krushnamegh (2000). Butterflies of Peninsular India. India, A Lifescape. Hyderabad, India: Universities Press. ISBN 978-8173713545.
- Wynter-Blyth, Mark Alexander (1957). Butterflies of the Indian Region. Bombay, India: Bombay Natural History Society. ISBN 978-8170192329.
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