Bug FAQThree-spotted Grass Yellow
Eurema blanda · Order: Lepidoptera · Family: Pieridae
Also called: Papuan Grass-yellow, Three Spot Grass Yellow
Males in the wet form have lemon-yellow upper wings with a distinctive black marginal band and three marks in the fore-wing cell. Its larvae feed on Caesalpinia mimosoides and Bauhinia purpurea and develop from egg to adult in about a month.
Source: Wikipedia
How to recognize it
Wet-form males show lemon-yellow upper wings; the fore-wing has a broad black marginal band that is wider at the front, and the hind-wing has a moderate black outer band. The underside of both wings displays the usual markings, with three distinct spots in the fore-wing cell and no sub-apical patch.
Source: Wikipedia
Size
Eurema blanda is a small butterfly belonging to the Pieridae family.
Source: Wikipedia
Where it lives
It lives in Sri Lanka, India and other parts of southeast Asia.
Source: Wikipedia
What it eats
Caterpillars feed on the plants Caesalpinia mimosoides and Bauhinia purpurea.
Source: Wikipedia
Life cycle
Females lay pale yellowish oval eggs on the upper side of leaves; the eggs hatch in about three days. First-instar larvae are light green, turning bright green in the final instar. After roughly 20 days the larvae pupate as light-green chrysalises, and adult butterflies emerge about a week later.
Source: Wikipedia
Where it comes from
Its native range includes Sri Lanka, India and southeast Asia.
Source: Wikipedia
Lookalikes
It can be confused with similar species, but it differs by having a shorter posterior wing edge that is outwardly oblique and a moderately broad black outer band on the hind-wing.
Source: Wikipedia
More photos
Questions people ask
What plants do the caterpillars eat?
The larvae feed on Caesalpinia mimosoides and Bauhinia purpurea.
Source: Wikipedia
How long does it take for the butterfly to develop from egg to adult?
Eggs hatch in about three days, larvae grow for around 20 days before pupating, and adults emerge about a week after pupation.
Source: Wikipedia
How can I tell this butterfly apart from similar species?
Look for the shorter, outward-oblique posterior wing edge and the moderately broad black outer band on the hind-wing.
Source: Wikipedia
Same family (Pieridae)
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Eurema_blanda
Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia
Text written 2026-10-24 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.