Dusky Knight
Common NameDusky Knight
Scientific NameOrsotriaena medus
FamilyNymphalidae
SubfamilySatyrinae
Wingspan (mm)50
Primary Colorsbrown, black, yellow
HabitatForest edges, open woodlands, grasslands, often near water bodies
Geographic RangeSouth and Southeast Asia, parts of Australia
Host PlantsOryza sativa, Imperata cylindrica, Paspalum conjugatum, various grasses
Flight PeriodYear-round in tropical regions, multiple broods
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesEggs are laid singly on host grasses. Larvae are green with two short tails, and pupae are green, suspended head-down.
Identification TipsLook for the uniform dull brown underside with two distinct, prominent eyespots (one large on forewing, one smaller on hindwing) against the cryptic background.
Description
A medium-sized, dull brown butterfly with two prominent black and yellow-ringed eyespots on the underside of its wings, one larger on the forewing and one smaller on the hindwing.
