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Caterpillars and larvae of the Southwestern United States

Caterpillars and larvae of the Southwestern United States

For the many known and unknown caterpillars and larvae, please try to provide photos of the top, side, bottom, face or any other unique feature. If photo is not available, please describe what you see, as well as, where you saw it and what it was doing. All these tiny details help in identification and learning. Please put the caterpillar or larvae photo first and if available a photo of the adult last. Chrysalis and pupal photos are welcome.

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Caterpillars and larvae of the Southwestern United States
Created by


Website 62 participants 172 spottings

The focus is to document the variety of caterpillars and larvae that inhabit Southwestern United States; Arizona, California, Colorado, Nevada, New Mexico, Oklahoma, Texas and Utah. This makes up about one forth of the United States. Since Texas is also counted in the Southeastern states; caterpillars in Louisiana, Mississippi, and Arkansas are welcome.

Caterpillars and larvae of the Southwestern United States

Lat: 33.15 Long: -97.02

Recent Spottings

Spotting JaredAllenEiselman 2 5 Spotting
Caterpillar alexis.m.brooks 2 0 Caterpillar
Tobacco Hornworm LacyRobertson 2 4 Tobacco Hornworm
Eastern tent caterpillar mdhatcher67 2 0 Eastern tent caterpillar
Black Swallowtail (caterpillar) SanciaMatthyssen 1 1 Black Swallowtail (caterpillar)
Elm Sawfly larva joanbstanley 4 0 Elm Sawfly larva
Pipevine Swallowtail Caterpillar gatorfellows 1 0 Pipevine Swallowtail Caterpillar
Tobacco Horn Worm joanbstanley 2 0 Tobacco Horn Worm
Spotting joanbstanley 0 0 Spotting
Spotting SanciaMatthyssen 1 0 Spotting
Larve RebeccaSatterlee 1 0 Larve
Cabbage Looper SanciaMatthyssen 0 0 Cabbage Looper
Great Ash Sphinx Moth (Larvae) RebeccaSatterlee 3 1 Great Ash Sphinx Moth (Larvae)
Forest Tent Caterpillar KarenPerez2 1 1 Forest Tent Caterpillar
Black Swallowtail caterpillar joanbstanley 1 0 Black Swallowtail caterpillar
Saltmarsh Caterpillar JaredAllenEiselman 1 0 Saltmarsh Caterpillar
Hackberry Caterpillar joanbstanley 2 0 Hackberry Caterpillar
Spotting jump 1 1 Spotting
Eastern Black Swallowtail Caterpillar gatorfellows 1 1 Eastern Black Swallowtail Caterpillar
Black Swallowtail Adrián Encontrado 5 0 Black Swallowtail
Mourning Cloak Caterpillar JaredAllenEiselman 0 0 Mourning Cloak Caterpillar
Cabbage leaf eater Adrián Encontrado 0 2 Cabbage leaf eater
Cabbage leaf eater Yeipí JotaPé 0 0 Cabbage leaf eater
Forest Tent Caterpillar gatorfellows 1 0 Forest Tent Caterpillar
Eastern Black Swallowtail Caterpillar gatorfellows 1 0 Eastern Black Swallowtail Caterpillar
Salt Marsh Moth Larva Dan_Fryman 1 1 Salt Marsh Moth Larva
Giant Leopard Moth Caterpillar JaredAllenEiselman 1 0 Giant Leopard Moth Caterpillar
Pipevine Swallowtail Caterpillar gatorfellows 1 2 Pipevine Swallowtail Caterpillar
Giant leopard moth chrysalis cathcfitz 1 2 Giant leopard moth chrysalis
White-blotched Heterocampa AmyMass 3 2 White-blotched Heterocampa
White-lined Sphinx Caterpillar gatorfellows 1 1 White-lined Sphinx Caterpillar
Salt Marsh Caterpillar (tracks) gatorfellows 1 2 Salt Marsh Caterpillar (tracks)
Yellownecked Caterpillar MeredithNudo 2 0 Yellownecked Caterpillar
Spotting JaredAllenEiselman 1 0 Spotting
Salt Marsh Caterpillar joanbstanley 1 1 Salt Marsh Caterpillar
Cedar Incense Sphinx moth (larva) jump 1 3 Cedar Incense Sphinx moth (larva)
Pandora Sphinx (larva) - green morph perezz 0 0 Pandora Sphinx (larva) - green morph
Black Swallowtail Caterpillar gatorfellows 4 3 Black Swallowtail Caterpillar
Gulf Fritillary Caterpillar gatorfellows 1 1 Gulf Fritillary Caterpillar
Sulphur Butterfly (larva) perezz 0 2 Sulphur Butterfly (larva)
Mealworm larvae AustenHamilton 0 2 Mealworm larvae
Tawny Emperor Caterpillar kellinicole6 0 0 Tawny Emperor Caterpillar
Monarch Caterpillar AmyMass 1 1 Monarch Caterpillar
Pipevine Swallowtail Caterpillar gatorfellows 1 0 Pipevine Swallowtail Caterpillar
Milkweed Tussock Moth Caterpillar AmyMass 1 2 Milkweed Tussock Moth Caterpillar
Spanish Moth Caterpillar jmmonds 2 8 Spanish Moth Caterpillar
Spotting StephenKimball 0 1 Spotting
Gulf Fritillary Caterpillar gatorfellows 2 1 Gulf Fritillary Caterpillar
Giant Swallowtail Orange Dog joanbstanley 2 2 Giant Swallowtail      Orange Dog
Black Swallowtail joanbstanley 1 0 Black Swallowtail

Recently joined

Nikki Q joanbstanley LeeAnnBartlettDunn Nosferatuia
NJB Yeipí JotaPé RebeccaSatterlee Adrián Encontrado
lewisde85 YeseniaNúñez oLIVIaLOU11 Big Thicket National Preserve
Leslie Rocha Dixie Jasmine123 cathcfitz
joelbtrevino Robert38 rahrahxy looziskey
MeredithNudo JaredAllenEiselman SanciaMatthyssen Dewlene
jump perezz xtylee MaliaBarth
TainaHernandez AustenHamilton grayeyedathena TimLambert
kellinicole6 GenievaBeland flacotechs simply_blessed
gardengaljhg ryancarpenter lisdolaslc HollyBosholm
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