Status:  fairly common resident

Flights:  1, May-Jul

Distribution/known sites in Monterey County:  both coastal and interior ranges; Gloria Rd., Chalone Pks., Jamesburg Rd., Chew’s Ridge, Big Creek, Hasting’s Reserve

Habitats:  foothills, lower mtns., in brushy areas and forests

Host plants:  ceanothus, buckbrush, wild lilacs

Adult foodnectar from flowers of buckbrush, buckwheat, lilacs, dogbane, yerba santa

Conservation: none needed


  1.   adults sometimes found in large groups

  2.   caterpillar is equipped with a honey gland which emits a sugary solution agreeable to ants; ants feed on the solution and protect the caterpillar from predators

  3.   male shorter tailed, FW with black (sometimes pale) oval spot along leading edge


Hedgerow hairstreak Satyrium saepium

Life history facts

egg: laid on buds, leaves, and twigs of host plant, hatch in spring

larva: eat buds, uppersides of leaves


adult:  males perch on low vegetation

nectaring on yerba santa

n chalone peak