Home / Saturniidae Moths (Saturniidae) / Glover’s Silk Moth (Hyalophora gloveri)

Glover’s Silk Moth (Hyalophora gloveri)

The Glover’s silk moth is a saturniid moth found in North America. It is widely considered a sub-species of the Columbia silk moth and was first described by American entomologist Ferdinand Heinrich Hermann Strecker in 1872.

Glovers Silk Moth


Scientific Classification

  • Family: Saturniidae
  • Genus: Hyalophora
  • Scientific Name: Hyalophora gloveri

Description and Identification


Larvae may be black and yellow, with rows of tufts of black spikes, or green and covered in blue, white, and yellow knobby bumps, depending on the instar.

Glovers Silk Moth Caterpillar



Pupation takes place after the larvae mature.

Adult Moth

Sexual Dimorphism: Present but not prominent.

Color and Appearance

These moths have hairy, gray collars near their heads, where a large white patch is also observed. The thorax is brown and covered with hair. Their antennae are large, with comb-like teeth on them. The moths have brown, hairy legs.

Forewing: When the wings are opened, they are a similar brown color as the rest of their body, with the center of the wing being darker than the edge. White lines separate the different wing segments, with white dashes also observed. When the wings are closed, the colors and patterns remain observable.

Hindwing: When the wings are opened, they are similar in appearance to the forewing, with the only observable difference being a distinct crescent-shaped white marking. When the wings are closed, the crescent pattern can still be seen.

Average wingspan: 10 cm

Flight pattern: Consistent

Season: Spring to early summer

Hyalophora gloveri



The eggs are laid on the host plant, either in rows or singly.

Quick Facts

DistributionNorth America, including the Rocky Mountain states, the Canadian prairie provinces, the western region of the northern Great Plains, and northern Mexico.
HabitatAlpine and riparian areas
Lifespan of AdultsNot recorded
Host PlantsAlder, Antelope Bitterbrush, birch, buckbrush, buffaloberry, cherry, rose, Russian Olive, and willow
Adult DietDoes not feed

Did You Know

  • It has two sub-species – Hyalophora gloveri gloveri and Hyalophora gloveri nokomis.
Glovers Silk Moth Image


Glovers Silk Moth Picture


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