Status:  rare stray/occasional colonist?

Flights:  1?, Mar-Nov?

Distribution/known sites in Monterey County:  historical records only; no known sites or recent records

Habitats:  open areas - fields, washes, rivercourses

Host plants:  milkweeds

Adult foodnectars at milkweeds

Conservation: secure globally


  1.   males seek out certain flowers (ageratum, heliotrope) for alkaloids needed for breeding

  2.   some milkweeds contain cardiac glycosides which are stored in bodies of larva and adult; these poisons are distasteful and emetic to birds and other vertebrates

  3.   after tasting a queen, predator might associate bright warning colors of adult or caterpillar with an unpleasant meal, and avoid queens in the future

  4.   male has black sex pouch on HW vein above



Danaus gilippus

Life history facts

egg: laid singly on host leaves, stems, and flower buds

larva:  eat leaves, stems, flower buds


adult:  males patrol all day for fem.; adults roost communally

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