Gulf Fritillary Caterpillar

Northern California caterpillar
Location: San Francisco CA
December 7, 2011 11:08 pm
Found this in our garden in SF. Cannot figure it out! Even looked in bug guide.
Signature: Amy & Tony

Gulf Fritillary Caterpillar

Dear Amy & Tony,
We suspect that there is a passion flower vine nearby since this is a Gulf Fritillary Caterpillar and that is the food plant.

Thanks! You are correct! The vine in our garden is a passion flower!
Cool! I guess this butterfly has extended its range quite a bit as we live in NorCal not southern Cal.
Amy & Tony

The range of the Gulf Fritillary has expanded significantly with the cultivation of passion flower.

1 thought on “Gulf Fritillary Caterpillar”

  1. The passion flowers have a unique structure, which in most cases requires a large bee to effectively pollinate. In the American tropics, wooden beams are mounted very near passionfruit plantings to encourage carpenter bees to nest. The size and structure of flowers of other Passiflora species is optimized for pollination by hummingbirds (especially hermits like Phaethornis), bumble bees, wasps or bats, while yet others are self-pollinating.,”‘”

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