Catocala habilis
kah-TOCK-uh-lahmHAB-ih-lis
Grote, 1872

The Habilis Underwing, by James K. Adams.

This site has been created by Bill Oehlke at oehlkew@islandtelecom.com
Comments, suggestions and/or additional information are welcomed by Bill.

TAXONOMY: Superfamily: Noctuoidea Family: Noctuidae Group: Noctuinina Subfamily: Catocalinae Genus: Catocala, Schrank, 1802

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DISTRIBUTION:

The Catocala habilis moth (wingspan: 55-65mm; Hodges #8778) flies from Quebec (common) and Ontario south through Connecticut and New Jersey to North Carolina and west to Arkansas.

Catocala habilis Canadian Biodiversity Information Facility

FLIGHT TIMES AND PREFERRED FOOD PLANTS:

In northern portions of its range, Catocala habilis flies as a single generation with moths on the wing from mid July to early October (rare).

In more southerly locales there may be multiple flights with moths on the wing from early June, but it is generally accepted that all Catocala species are univoltine.

Catocala habilis, Stillwater Township, Sussex County, New Jersey,
August 27, 2005, courtesy of Joe Garris.

Note the large "M" on the thorax and the "pork chop" shaped, light coloured subreniform spot that becomes very dark in its constriction at the juncture with the postmedian line.

The pm line is narrow but dark and distinct. It is outwardly lined with a narrow suffusion of white scales, followed by a broader band of brown scales, and then another broader suffusion of white scales up to a very regular dentation of the subterminal line.

There is always significant "bleeding" of the yellow-orange to salmon scales into the hindwing fringes.

The reniform spot has a brown center, faintly edged with black, then white, then black again.

Catocala habilis, The Habilis Underwing, Trout Valley, (McHenry County) Illinois,
August 21-26 -- Sept 6, sugar bait, courtesy of Scott Boutilier.

The Catocala habilis caterpillar shows a preference for Carya ovata (shagbark hickory), Fraxinus pennsylvanica (green ash), and Juglans cinerea (butternut) and Juglans nigra (black walnut).

Moths come in to lights and to bait.

ECLOSION:

Adults eclose from pupae formed under leaf litter.

SCENTING AND MATING:

Catocala habilis females emit an airbourne pheromone and males use their antennae to track the scent plume. This is a sexually dimorphic species.

EGGS, CATERPILLARS, COCOONS, AND PUPAE: Eggs are deposited on tree bark in the fall and hatch the following spring. Mature larvae Image courtesy of

Larval Food Plants

Listed below are primary food plant(s) and alternate 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, although some species seem very host specific. Experimenting with closely related foodplants is worthwhile.

Carya ovata Fraxinus pennsylvanica..... Juglans cinerea Juglans nigra

Shagbark hickory Green ash Butternut Black walnut

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