Catocala pretiosa
kah-TOCK-uh-lahmpret-ee-OH-suh
Lintner, 1876

Catocala pretiosa female, Louisiana, courtesy of Vernon A. Brou.

This site has been created by Bill Oehlke
Comments, suggestions and/or additional information are welcomed by Bill.

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

DISTRIBUTION:

The rare Precious Underwing, Catocala pretiosa (wingspan: 40-50mm), flies from Massachusetts, Connecticut and New Jersey west to Pennsylvania and south to Virginia and North Carolina and west to Tennessee into Louisiana, Texas and Oklahoma.

It is thought to be near extinction in Ohio and New York and is probably quite localized in other eastern states.

There are also reports from Illinois, Maine, Maryland and New Hampshire.

Catocala pretiosa, Trinity River Refuge, Liberty County, Texas,
April 11, 2020, Stuart Marcos, id by Larry Gall.

Florida to Texas.

This subspecies is now equated with the nominate species Catocala pretiosa and as such can also be found in Alabama, Arkansas, Georgia, Mississippi, Missouri, and South Carolina.

This species is quite similar to crataegi and mira, but pretiosa has considerable creamy white colouration in the median area. The lower portion of the basal area is also light, not dark as in crataegi.

The inner black band of the hindwing forms a loop and the outer band is broken (not complete as in mira, followed by a dot that tapers to the anal angle.

Larry Gall has informed me that Catocala pretiosa texarkana is now a synonym of Catocala pretiosa.

Catocala pretiosa texarkana = Catocala pretiosa, by of Vernon A. Brou, Louisiana.

This site has been created by Bill Oehlke. Comments, suggestions and/or additional information are welcomed by Bill.

FLIGHT TIMES AND PREFERRED FOOD PLANTS:

Catocala pretiosa flies as a single generation with moths on the wing from May into early June. The Catocala pretiosa caterpillar feeds on Amelanchier, Malus, Photinia arbutifolia, and Prunus maritima.

ECLOSION:

Adults eclose from pupae formed under leaf litter.

SCENTING AND MATING:

Catocala pretiosa 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. 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.

Amelanchier....... Malus Photinia arbutifolia Prunus maritima

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