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Species Page - Hyalophora euryalus
Hyalophora euryalus ->species page

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scientific name    Hyalophora euryalus    (Bdv.)

common name     Ceanothus Silkmoth

habitat
There are no known native populations in AB. See remarks under "Range".

identification
This species can be recognized by the pinkish maroon colour that prevails beyond the postmedian white band. In H. columbia gloveri, this outer third of the wing has very little or no trace of maroon. Although variable, the discal spots are usually greatly elongated towards the outer edge of the wing, and this trait distinguishes euryalus from the other species of Hyalophora. The range of euryalus is not known to overlap with any other Hyalophora in Canada.

life history
Overwintering cocoons of H. euryalus are attached to the larval host plant and occasionally other plants.

conservation
Not applicable for Alberta.

diet info
Larvae are reported to feed on a variety of shrubs including Red Alder (Alnus rubra) (which occurs only along the west coast of BC), willow, wild rose, Currants and gooseberries (Ribes spp.), buffaloberry (Sheperdia canadensis), Mountain Maple (Acer glabrum), Saskatoon (Amelanchier alnifolia), and Redstem Ceanothus (Ceanothus sanguineus). Larvae also occasionally feed on Douglas Fir (Pseudotsuga menziesii).

range
The Ceanothus Silkmoth occurs in the dry intermontane valleys and interior of BC (as far north as Prince George along the Fraser River) south to Baja California. The only AB record of this species is for a live specimen introduced along with a shipment of ornamental shrubs from Oregon to Red Deer (E. Mengersen, pers. comm.). There is a small possibility this species is present in the Waterton / Castle River area of AB.

quick link
http://entomology.museums.ualberta.ca/searching_species_details.php?s=266



Comments (4)Add New Comment

Karen Bell (2011-05-31)
My husband found a moth that looks like this but slightly more brown. It looks like the same markings. It was in Washington State just north of Poulsbo. Is that possible?

James Parent (2013-05-20)
I saw a lovely living specimen near Winslow Wharf Marina on Bainbridge Island, WA on may 19, 2013. I judged it to be a female since its antenna was of the less bushy type than the male. It crawled onto my outstretched finger and flexed its wings for several minutes before flying off. This location is about 10 miles from Poulesbo, WA where another specimen was reported on your site.

Sally Smethie (2014-06-01)
I just identified this moth online. It's been on my front porch all day, funny thing is I live near Richmond Va.

Pepper Kim (2014-06-02)
As far as I can tell, a female moth of this species rested on a door to my house today in Vancouver, WA. Its antennae are dainty; thus, it seems to be female. The colors are more in the brown range, rather than maroon, but the markings are exactly the same. The wingspan is a bit longer than 4.5". It remained on my door for several hours. Then,apparently, it died and fell from the middle of the door straight down, where I found it, fully intact.

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Related Species Info
Authorship
Display Hierarchy
Specimen Info
There are 13 specimens of this species in the online database
Map Distribution
Adult Seasonal Distributioncreate a collection histogram with specimens
Specimen List (13)
Related Links
Moth Photographers Group

 

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