Glover's Silk-Moth | Hyalophora gloveri EGGS

Hyalophora gloveri, commonly known as Glover's silkmoth, is a striking species of moth in the family Saturniidae. Native to North America, it is primarily found in the western United States and parts of Canada, inhabiting open woodlands, shrublands, and montane regions. Known for its large size and bold appearance, Glover’s silkmoth is closely related to the cecropia moth (Hyalophora cecropia), and the two species sometimes interbreed in overlapping habitats.

The moth's wings are adorned with reddish-brown hues, intricate white bands, and large, crescent-shaped eyespots on both the forewings and hindwings. With a wingspan of up to 15cm, Hyalophora gloveri is one of the larger moth species in its range. The caterpillars are bright green with distinctive blue and yellow tubercles and feed on a variety of host plants, including willow, poplar, and chokecherry.

After reaching maturity, they spin tough, silken cocoons for pupation and adult moths emerge the following year. As adults, Glover’s silkmoths do not feed, relying on stored energy from their larval stage. They live only long enough to mate and lay eggs.

Difficulty - Cocoons easy (1/10); caterpillars challenging (6/10)

Host plants - Birch; Cherry; Willow; Ceanothus; Plum; Alder; Larch; Sweet Gum

Conditions - Room temperature or outdoors in airy conditions.

Lifecycle - Single brood with cocoons overwintering.