Celiptera frustulum
Guenée, 1852
Black Bit Moth
Celiptera frustulum, known as the black bit , is a moth in the Erebidae. It occurs in eastern North America, with records extending north to Ontario. The has two annually, with active in late spring and early summer. Its are specialized feeders on black (Robinia pseudoacacia).
Pronunciation
How to pronounce Celiptera frustulum: /ˌsɛ.lɪpˈtɛ.ra ˈfrʌs.tʃu.lʌm/
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
The combination of size (34–41 mm wingspan), dark with a distinct "bit" or dark marking, and pale with dark margins distinguishes this from similar Celiptera species. The spring period (May–June) in eastern North America helps separate it from related with different . Larval association with black provides additional identification context where plants are known.
Images
Appearance
-sized with a wingspan of 34–41 mm. are dark with a pattern of lighter markings; the "black bit" refers to a distinct dark marking. are paler, typically grayish or whitish with darker margins. Body is and covered in fine .
Habitat
Associated with deciduous woodlands and forest edges where black (Robinia pseudoacacia) occurs. Found in both natural and disturbed supporting this .
Distribution
Eastern North America, ranging from the northeastern United States north to Ontario, Canada. Records include Vermont and surrounding regions.
Seasonality
active from May to June; two per year (). Larval stage occurs between adult periods.
Diet
feed exclusively on Robinia pseudoacacia (black ). feeding habits are not documented.
Host Associations
- Robinia pseudoacacia - larval black
Life Cycle
with two per year. emerge in May and June. Larval development occurs on black , with presumably in soil or leaf litter. stage is not explicitly documented but likely as or .
Behavior
; are attracted to light. feed on foliage of .
Ecological Role
as , consuming foliage of black . Serves as for including birds, bats, and predatory . Contributes to through and detritus production.
Human Relevance
Minor potential as a pest of black in forestry or ornamental plantings, though not documented as economically significant. Of interest to and naturalists.
Similar Taxa
- Other Celiptera speciesSimilar size and general appearance; distinguished by pattern details, period, and geographic range.
- Other Erebidae moths with dark forewings and pale hindwingsSuperficially similar color pattern; separated by specific markings, size, and association.
More Details
Taxonomic history
Described by Achille Guenée in 1852. Classified in Erebinae of Erebidae; previously placed in family under older .
Observation frequency
Well-documented on citizen science platforms with over 1,500 observations, indicating it is readily encountered within its range and season.