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Euchaetes egle
Common Name: milkweed tussock moth
Other Common Names: bolsero calandria
Animal Guild: Insect
Class > Order > Family: Insecta > Lepidoptera > Erebidae
Where is the species found?
States & Provinces
AR, IN, KY, MI, MN, NB, ON, PA, QC, RI, VT, WI
Which phenophases should I observe?
Do you see/hear...?
Activity Adults
One or more adults are seen or heard moving about or at rest.
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For abundance, enter the number of individual animals observed in this phenophase.
Reproduction Mating
A male and female are seen coupled in a mating position, usually end to end. This can occur at rest or in flight.

For abundance, enter the number of individual animals observed in this phenophase.
Egg laying
A female is seen laying eggs on a plant or other surface. If possible, record the name of the plant or describe it in the comments field. For Euchaetes egle, eggs are typically deposited on the leaves of milkweed or dogbane plants.

For abundance, enter the number of individual animals observed in this phenophase.
Eggs
One or more eggs are seen on a plant or other surface. If possible, record the name of the plant or describe it in the comments field. For Euchaetes egle, the tiny, round eggs are yellow in color, and are typically found in clusters on the underside of the leaves of milkweed or dogbane plants.

For abundance, enter the number of individual animals observed in this phenophase.
Development Caterpillars
One or more caterpillars (larvae) are seen moving about or at rest. When seen on a plant, if possible, record the name of the plant or describe it in the comments field. For Euchaetes egle, young caterpillars are off-white with black heads, and covered in light-colored hairs. Older caterpillars are covered in bristly tufts of black, white and orange hairs.

For abundance, enter the number of individual animals observed in this phenophase.
Caterpillars feeding
One or more caterpillars are seen feeding. If possible, record the name of the species or substance being eaten or describe it in the comments field. For Euchaetes egle, caterpillars typically feed on the leaves of milkweed and dogbane plants.

For abundance, enter the number of individual animals observed in this phenophase.
Pupae
One or more pupae are seen in a cocoon or shell (puparium). For Euchaetes egle, pupae are enclosed in a dark shell covered wth the caterpillar's black and orange hairs, and are attached to leaves or found in leaf litter on the ground. Do not include empty pupal shells after the adult has emerged from them.

For abundance, enter the number of individual animals observed in this phenophase.
Dead adults
One or more dead adults are seen.

For abundance, enter the number of individual animals observed in this phenophase.
Dead caterpillars
One or more dead caterpillars are seen.

For abundance, enter the number of individual animals observed in this phenophase.
Method Individuals at a light
One or more individuals are seen at a light, whether flying or at rest.

For abundance, enter the number of individual animals observed in this phenophase.
Individuals in a net
One or more individuals are seen caught in a net.

For abundance, enter the number of individual animals observed in this phenophase.
Individuals in a trap
One or more individuals are seen caught in a trap.

For abundance, enter the number of individual animals observed in this phenophase.
What do these phenophases look like?

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