Large Marble   Euchloe ausonides

Status:  uncommon resident

Flights:  2, Feb - Jun

Distribution/known sites in Monterey County:  may favor cooler coast; Soberanes Creek, Elkhorn Slough, Big Creek, Fort Ord; also Pinnacles Rd.

Habitats:  open forest, coastal plain, meadows, streamsides orchards, roadsides

Host plants:  wallflower, wild radish, other mustards

Adult food:  nectar of mustard family, fiddleneck, brodiaeas

Conservation:  none required


  1.   brief flight periods, spring low elev, summer high elev

  2.   formerly creamy marblewing

  3.   pianist Walter Gieseking kept Berkeley audience waiting 2 hrs while he collected this species

  4. introduction of mustards to lowland CA enabled development of 2nd flight

  5.   leading edge FW more lightly marked than pearly marble, veins HW UN yellower; some coastal CA fem. pale yellow, discal spot narrow in males, apex pointed or rounded

Life history facts

egg: laid singly on unopened flower buds

larva: feed on soft buds, flowers, rarely seed pods

pupa: hibernate

adult:  males patrol hillsides, valley bottoms for receptive females; flight low, fast, direct, erratic, seldom pause except to nectar or roost

nectaring on mustard