Spinning cocoon - Eleventh day as
Fifth Instar

Cocoon in Progress - Eleventh Day as
Fifth Instar

Two cocoons with the willow leaves
removed

Pupae - Female top, Male With Larger Antennae
Bottom

Male has no mark on
fourth section from wing case

Female Has a Slit in
the Fourth Segment from Wing Case

Female Pupa Showing Development on Wing Case - 27 July
2015

Mating Pair courtesy Tim Dalsing

Mating Pair courtesy Tim Dalsing

Female

Photo Details
ŠNicky Davis
SET ONE
Purged excess fluid on 26 June 2015 and began
spinning cocoon
Photos of male and female pupae
Photos of mating pair courtesy Tim Dalsing
Photo of Female that eclosed ~20 August 2015
HOST: Salix exigua
Family Tree
Family: Saturniidae, Genus:
Hyalophora, Species:
columbia, Ssp. gloveri
Other
In the west the caterpillar hosts are the
western choke cherry (Prunus demissa),
bitter cherry (P. emarginata),
bitterbrush (Purshia tridentata), wild
roses (Rosa), willows (Salix),
buffalo berry (Shepherdia argentea),
Russian olive (Eleagnus angustifolius),
and buckbrush (Ceanothus).
Identification marks: Wings are dark brown to
red-brown. The gray area outside the white
postmedian band does not contain any red.
Crescent spots on the forewings and hindwings
are white, although occasionally the spots on
the forewing may be reduced or absent.
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