Catocala andromedae
kah-TOCK-uh-lahmm an-DRAHM-eh-day
(Guenee, 1852) Hypogramma andromedae

Catocala andromedae courtesy of Pierre Legault.

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:

Catocala andromedae, the Andromeda or Gloomy Underwing, (wingspan: 40-50mm) flies from Maine south to Florida and west to Texas and Oklahoma. This specimen showed up in Connecticut, July 24, 2003, courtesy of John Himmelman. The black underwings and dark grey fringe of the hindwings, coupled with the dark inner margin of the forewings help to identify this species. Moths rest with their heads pointing downwards. There is also a very dark "flying saucer" shape, adjoining the subreniform spot to the midpoint of the antemedial line. The "teeth" of the postmedian line are short and blunt, outwardly edged with white. The subterminal line is also outwardly edged with white.

The underside of the hindwing is almost completely black. The forewing underside is also black with a broad and relatively even white band.

Catocala andromedae male, verso, courtesy of Pierre Legault.

FLIGHT TIMES AND PREFERRED FOOD PLANTS:

Catocala andromedae are usually on the wing from early July to late August in Maine. Specimens have been taken in May in Texas.

Adults come to lights and to bait. The Catocala andromedae caterpillar shows a preference for Andromeda, Carya, Lyonia, Quercus and Vaccinium.

ECLOSION:

Adults eclose from pupae at soil surface.

Catocala andromedae male, courtesy of Pierre Legault.

SCENTING AND MATING:

Catocala andromedae females emit an airbourne pheromone and males use their antennae to track the scent plume.

EGGS, CATERPILLARS, COCOONS AND PUPAE:

Eggs are deposited on tree bark in the fall and hatch the following spring.

Catocala andromedae courtesy of David L. Wagner and Valerie Giles.

The mature larva can be tan, brown or grey with longitudinal stripes. The head is noticeably streaked.

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.

Andromeda Carya Lyonia Quercus Vaccinium angustifolium..... Vaccinium corymbosum

Tree Andromeda/Sorrel-tree Hickory Fetterbush Oak Late Low Blueberry Highbush Blueberry

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