DISTRIBUTION:

Hylesia orbifex (wingspan: male: 38mm; females: probably larger) flies in
Brazil: Rio de Janeiro.

The brown, instead of black, abdomen and broad hindwing discal spot distinguishes this species from oratex.

Lemaire indicates, however, that the single specimen known may be a variation of remex, as the venation is quite pronounced.

Thorax: brownish-grey; abdomen: brown, covered with ocher hairs. The hindwing has a large discal spot.

FLIGHT TIMES AND PREFERRED FOOD PLANTS:

Larval josts are unknown.

This species probably broods continuously on a three month cycle.

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 orbifex 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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