Newberry Caldera, Deschutes Co, July 16

Small

Wood Nymph

Cercyonis oetus

AKA Dark Wood Nymph

Size: Up to 1.75 inch wingspan

Key ID features:  Above gray-brown with one or two eye spots on FW.  Below, striated brown with one to several small eyespots on HW, two eyespots on FW upper one much larger than lower, lower spot closer to wing margin than upper, lower spot sometimes missing. Dark median line on HW erratically jagged.

Similar species: Great Basin Wood Nymph is larger, has more prominent bands below, lower eyespot only slightly smaller than upper, HW median line less jagged.

Host plant: Undetermined grass species.

Habitat: Grassy habitats including sage-steppe, plateaus, montane meadows and dry hillsides.   

Range: Eastern Oregon.

Season: Late May to late September

Abundance: Common 

 

Conservation Status: Secure 

© 2018-20 by Neil Henning Björklund