Catocala pretiosa
Lintner, 1876
Precious Underwing
pretiosa, the Precious Underwing, is a in the Erebidae first described by Joseph Albert Lintner in 1876. It was long treated as a synonym of Catocala crataegi but has been revalidated as a distinct . The nominate is listed as a species of special concern and believed extirpated in Connecticut. are active from May to June with likely one per year.



Pronunciation
How to pronounce Catocala pretiosa: /ˈka.toˌka.la preˈti.o.sa/
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Identification
Distinguished from the similar crataegi by genitalic and subtle morphological differences that led to its revalidation as a distinct . Separation from other Catocala species requires examination of pattern details and . The two recognized (pretiosa and texarkana) differ geographically rather than by obvious external features.
Images
Appearance
Wingspan 40–50 mm. are cryptically colored in dull gray- tones that provide against tree bark when at rest. are concealed at rest but display bright, striking coloration when exposed—characteristic of in . Specific hindwing pattern details for C. pretiosa are not documented in available sources.
Habitat
Associated with forested and woodland supporting larval plants in the rose (Rosaceae), including serviceberry, hawthorn, apple, and cherry. Specific habitat preferences for are poorly documented.
Distribution
Eastern and central United States: from Massachusetts, Connecticut, and New Jersey west to Pennsylvania, south to Virginia and North Carolina, and west to Tennessee, Louisiana, and Oklahoma. texarkana occurs from Florida to Texas.
Seasonality
on from May to June. Probably one per year.
Diet
feed on Amelanchier (serviceberry), Malus (apple), Photinia arbutifolia (now Aronia arbutifolia, red chokeberry), and Prunus maritima (beach plum). The pretiosa specifically feeds on Amelanchier, Malus, and Aronia arbutifolia.
Host Associations
- Amelanchier - larval Serviceberry
- Malus - larval Apple
- Aronia arbutifolia - larval Red chokeberry; previously listed as Photinia arbutifolia
- Prunus maritima - larval Beach plum
Life Cycle
with , larval, pupal, and stages. feed on plants in Rosaceae. details are not documented. Adults emerge in late spring.
Behavior
are . Like other , they typically rest with folded over the body, concealing the brightly colored . When disturbed, they may flash the hindwings to startle before taking . They are not strongly attracted to lights compared to some species, often remaining on the periphery of lighted areas.
Ecological Role
function as on Rosaceae shrubs and trees. may serve as for bats, birds, and other . Specific or prey relationships are not documented.
Human Relevance
The nominate (C. p. pretiosa) is listed as a of special concern and believed extirpated in Connecticut, indicating concern in parts of its range. No significant economic or cultural importance is documented.
Similar Taxa
- Catocala crataegiLong treated as ; distinguished by genitalic and subtle morphological features that led to revalidation of C. pretiosa as distinct
- Other Catocala speciesShare the bauplan with cryptic and brightly patterned ; require examination of hindwing pattern and for definitive identification
More Details
Taxonomic history
pretiosa was first described by Lintner in 1876 but was subsequently treated as a synonym of Catocala crataegi by many authors. Recent taxonomic work has revalidated it as a distinct based on morphological differences.
Subspecies
Two are recognized: pretiosa pretiosa (northeastern and central US) and Catocala pretiosa texarkana Brower, 1976 (Florida to Texas). The Texarkana Underwing subspecies was described by Brower in 1976.
Sources and further reading
- BugGuide
- Wikipedia
- GBIF taxonomy match
- iNaturalist taxon
- NCBI Taxonomy
- Catalogue of Life
- A Gathering of Lepidopterists: Who's Who of the Butterfly, Moth Experts | Bug Squad
- Got Moths? Celebrate National Moth Week and Global Citizen Science
- Bug Eric: National Moth Week Recap, 2015
- Bug Eric: National Moth Week Recap for Colorado Springs
- Bug Eric: National Moth Week 2024 Recap from Kansas City
- Bug Eric: New Mexico Night Bugs