Size: wingspread 2.75-3.5 in.

Recognition: Large; deep yellow with fairly wide black bandextending down outer edge of wing, with yellow spot band extendingthrough black band; leading edge of FW is thick black area (rather thanthe thin black stripes of the Western Tiger); distinctive orange spotwith round black center on bottom HW edge.

Flight period: The adults are active most of the year.

Hostplants:The larvae of this swallowtail feed on many plants in the parsley family (Apiaceae), especially sweet fennel (Foeniculum vulgare).

Distribution: Western portion of U.S., can be found in thelowlands throughout southern California except in the desert areas.Present on Santa Cruz Island in the Santa Barbara Channel, where fennelis abundant.