DISTRIBUTION:

Hylesia vialactea (wingspan: males: 30-38mm; females: 44-49mm) flies in
Bolivia: Santa Cruz, La Paz, Chuqisaca; at moderate to high elevation (1800-3000m).

This is a lighter species with forewing colouration closer to purplish-grey, almost white. The forewing discal cell is dark and prominent.

Hylesia vialactea male, 38mm, Chuquisaca, Bolivia, BOLD Systems.

FLIGHT TIMES AND PREFERRED FOOD PLANTS:

Larval hosts are unknown.

This species has been taken in April and December.

Hylesia vialactea female, 47mm, Bolivia, BOLD Systems.

ECLOSION, SCENTING AND MATING:

Females extend a scent gland from the tip of the abdomen, and the night-flying males pick up and track the airbourne pheromone plume with their well-developed antennae.

EGGS, LARVAE, COCOONS AND PUPAE:

Eggs are deposited in clusters on hostplant foliage.

Hylesia vialactea larvae are highly gregarious and have the urticating spines typical of larvae from the Subfamily Hemileucinae.

Larval Food Plants

It is hoped that this alphabetical listing followed by the common name of the foodplant will prove useful. The list is not exhaustive. Experimenting with closely related foodplants is worthwhile.

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