Caterpillars of Pacific Northwest
Forests and Woodlands
Photo Key to Species
Group B-1b -- Subgroups: Body wall smooth, except monarch butterfly - Species in group B-1a have a smooth body wall that is not extended into bumps, warts, tubercles, or horns. As an exception note the caterpillar of the monarch butterfly has four long filamentous tubercles.
Spots, or streaks, or reticulated
- Choristoneura occidentalis [Tortricidae] - Western Spruce Budworm
- Ypsolopha cervella [Plutellidae]
- Alypia langtoni [Noctuidae]
- Papilio zelicaon [Papilionidae] - Anise Swallowtail
- Parnassius clodius [Papilionidae] - Clodius Parnassian
- Epargyreus clarus [Hesperiidae] - The Silverspotted Skipper
- Nadata gibbosa [Notodontidae] - Green Oak Caterpillar (mid instar)
- Nadata gibbosa [Notodontidae] - Green Oak Caterpillar (late instar)
Previous Section -- Irregular middorsal markings
Return to Photo Key to Species in Group B-1b
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