The characteristics of the family include
Medium to large butterflies. Their tough leathery wings are predominantly orange/yellow to brown
The forelegs are modified into brushes and are not used for walking especially in males
The males of Danaus genus have secondary sexual characteristics (androconia) consisting of a pouch on vein 2 of the hindwing, and retractile anal hair pencils
Some Danaidae have amazing migratory flights travelling thousands of miles in huge swarms
Larvae are smooth and cylindrical with parallel rows of black ,white or yellow stripes , and two or more pairs of tentacles which are universal in the family
Pupae are smooth and bulbous sometimes with gold or silver flecks and suspended by a cremaster without a supporting girdle
Foodplants include Asclepiadaceae and Apocynaceae -milkweed butterflies
Many species share mimetic relationships with species from other families ,especially Ithomiids
Danaidae are very tough and resilient , captured and presumed dead specimens often happily flying away from the collecting jar!