No common name
Common NameNo common name
Scientific NameGuastica semilutea
FamilyCrambidae
SubfamilySpilomelinae
Wingspan (mm)18
Primary Colorsyellow, brown, white
HabitatTropical and subtropical forests, disturbed areas, gardens
Geographic RangeOriental region (e.g., Hong Kong, China, Taiwan, Japan, India, Sri Lanka, Borneo, Sumatra, Java, Philippines)
Host PlantsUnrecorded, likely herbaceous plants
Flight PeriodYear-round in tropical areas; multiple broods in warmer months elsewhere
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesLike most moths, it undergoes complete metamorphosis: egg, larva (caterpillar), pupa, and adult. Larvae are likely herbivorous, feeding on herbaceous plants.
Identification TipsDistinguished by the sharp contrast between the bright yellow basal forewing and the speckled reddish-brown outer half. Its small size and typical moth resting posture are also characteristic.
Description
A small moth characterized by forewings that are bright yellow basally, transitioning to a reddish-brown distal half heavily speckled with white scales.
