Ceanothus Silkmoth (Hyalophora euryalus)

Share the gems of your insect collection with the InsectNet community
Post Reply
User avatar
Trehopr1
Global Moderators
Global Moderators
Reactions:
Posts: 1014
Joined: Thu Mar 31, 2022 1:48 am
United States of America

Ceanothus Silkmoth (Hyalophora euryalus)

Post by Trehopr1 »

North America boasts 4 species of giant silkmoths of
the genus Hyalophora. Our cecropia moth (Hyalophora
cecropia) probably remains the best known of the lot
for its size and widespread eastern range. However, the
other 3 species (H. gloveri, H.columbia, and H. euryalus)
though more restricted in their ranges still make for
some beautiful and exciting finds amongst those who
appreciate moths.

One could easily do an article on every one of these
species as there is something nice to say about the
qualities of each. However, my focus here pertains to
what this hobbyist sees as the MOST unique species.

The Ceanothus Silkmoth (Hyalophora euryalus) has a
range covering the Northwestern states of Washington,
Oregon, Northern California, Idaho, and a portion of
the Canadian province of British Columbia. There is but,
one generation per year and adults are on wing from
January thru July.

Buckbush (Ceanothus) is the preferred foodplant and
is to be found most commonly in dry intermontane valleys.
Yet, the species has been known to accept a varied
assortment of other food types as well.

A typical (pair) bearing the unique "rust-red" coloration
of which the species is best known.

Males exhibit just about THE most out-sized antennae
this collector knows of in proportion to the other species !

Image

Females are rather variable in their "rust-red" coloration
with some examples being lighter or darker in tone. As
well, the females also exhibit quite a variance in the
appearance of their crescent shaped markings. Some
are compact/reduced whilst others stretch/bleed into
the nearby outer margins !

Here I show 2 females of a more "reserved" appearance.

Image

Yet, here I present 2 females of the more "elaborate" and
exaggerated appearance.

Image

Indeed, quite a wonder (in its own right) for being a moth.
These bred examples are out of Oregon and represent
a sampling of what this species has to offer amongst those
who appreciate moths to a degree.
User avatar
58chevy
Meek
Meek
Reactions:
Posts: 390
Joined: Mon May 23, 2022 5:58 pm
Location: Houston, TX USA
United States of America

Re: Ceanothus Silkmoth (Hyalophora euryalus)

Post by 58chevy »

Nike stole their logo from this moth.
evra
Junior Member
Junior Member
Reactions:
Posts: 41
Joined: Fri Nov 04, 2022 9:21 pm
United States of America

Re: Ceanothus Silkmoth (Hyalophora euryalus)

Post by evra »

I’ve collected and reared H. euryalus. In the spring in S. CA it flies pretty early. Here’s my modest collection of them (gloveri left, euryalus right).
Attachments
0DD27CB4-EB4B-417E-8680-2099AB7435D8.jpeg
0DD27CB4-EB4B-417E-8680-2099AB7435D8.jpeg (722.12 KiB) Viewed 1584 times
Post Reply

Create an account or sign in to join the discussion

You need to be a member in order to post a reply

Create an account

Not a member? register to join our community
Members can start their own topics & subscribe to topics
It’s free and only takes a minute

Register

Sign in