Siren
Common NameSiren
Scientific NameIdeopsis similis
FamilyNymphalidae
SubfamilyDanainae
Wingspan (mm)70
Primary Colorswhite, black, pale blue
HabitatForests, forest edges, open woodlands
Geographic RangeSoutheast Asia (e.g., Philippines, Indonesia, Malaysia)
Host PlantsParsonsia spp.
Flight PeriodYear-round in tropical climates
Conservation Statusleast-concern
Lifecycle NotesLarvae feed on toxic host plants, primarily *Parsonsia* species, accumulating toxins that make both caterpillars and adults unpalatable to predators, a common defense mechanism in the Danainae subfamily.
Identification TipsDistinguished by its unique pattern of bold black veins and spots on a translucent pale background, which helps differentiate it from similar 'glassy tiger' species within the Danainae subfamily.
Description
The Siren is a medium-sized butterfly characterized by its translucent white or pale blue wings, heavily patterned with prominent black veins and distinct black spots and patches.
