Red Admiral caterpillars on Stinging Nettle

 Red Admiral Caterpillar

 

All content in this website is copyright © R. Bercha, unless otherwise indicated. Unauthorized use, duplication or publication prohibited without permission.

 

          
Common name:  Red Admiral Caterpillar

Latin Name:  Vanessa atalanta (Fruhstorfer, 1909)

Length:   ~30 mm

Range:  Throughout Alberta

Habitat:  Various

Time of year seen:  May to October

Caterpillar's Diet: Nettles

Other:  The coloration of Red admiral caterpillars varies from black background with yellow/white speckles (photos 1 & 2) to white with black mottling (photo 3).  Both color morphs have pale yellow lateral stripes.  The preferred host plant is nettles - Urtica spp. (Bird, 1995).  In Alberta they can be found on Stinging Nettle (Urtica urens & gracilis).  

Photo 1

Location: Windy Point Trail, Kananaskis, AB
Date: Aug. 7, 2007

               

                            
Photos: