DISTRIBUTION:

Hylesia angulex (wingspan: males: 33-42mm; females: 44mm (ESs)-49-63mm) flies in
eastern Peru: Loreto, Huanuco (400m to 1100m);
Ecuador: Napo, Sucumbios (ESs), Morona-Santiago and probably Pastaza; and
western Brazil: Rondonia, and probably in eastern Colombia and Bolivia.

The thorax can be mousy grey or brown. The abdomen can be yellowish grey to dark yellowish brown. Ground colour is mouse grey to dark greyish brown. The lines are prominent and white, with the antemedial line having a strong angle at the cubitus and the postmedial line either convex or slightly s-shaped. The subterminal line is outwardly traced wuth white. The cell mark is conspicuous and brown. The veins are slightly accentuated with dark brown.

The hindwing usually has a distinct whitish postmedial line.

FLIGHT TIMES AND PREFERRED FOOD PLANTS:

Specimens have been taken in February and March and in July-September.

Larval hosts are unknown.

Hylesia angulex female, Loreto, Peru,
400m, Claude Lemaire, on my home computer only.

Hylesia angulex female, Sucumbios, Ecuador,
44mm, on my home computer only.

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 probably deposited in clusters on hostplant foliage or more likely enmasse on stems and twigs.

Hylesia angulex larvae are probably 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.

Return to Hylesia Index

Return to Main Saturniidae Index

The pronunciation of scientific names is troublesome for many. The "suggestion" at the top of the page is merely a suggestion. It is based on commonly accepted English pronunciation of Greek names and/or some fairly well accepted "rules" for latinized scientific names.

The suggested pronunciations, on this page and on other pages, are primarily put forward to assist those who hear with internal ears as they read.

There are many collectors from different countries whose intonations and accents would be different.

I do not know the origin of the genus name Hylesia.

The species name angulex probably has to do with the strong inner angle of the forewing antemedial line on the cubitus.