Moths of North Carolina
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View PDFElachistidae Members: 6 NC Records

Antaeotricha decorosella (Busck, 1908) - No Common Name


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Taxonomy
Superfamily: Gelechioidea Family: ElachistidaeSubfamily: StenomatinaeTribe: [Stenomatini]P3 Number: 420229.00 MONA Number: 1016.00
Comments: The genus Antaeotricha is endemic to the New World and includes nearly 400 species of mostly neotropical species. Twenty species are currently recognized in North America.
Identification
Field Guide Descriptions: Online Photographs: MPG, BugGuide, iNaturalist, Google, BAMONATechnical Description, Adults: Duckworth (1964)                                                                                 
Adult Markings: The following is based on the description by Busck (1908) and Duckworth (1964). The face and head are whitish ocherous. The labial palp is brownish ocherous, with the tip of the second joint and base of the terminal joint whitish. The antenna is light brown and ciliated only in the male (antenna simple in the female). The thorax is light brown. The forewing is rich deer brown with a strong silky luster, and the costal edge is narrowly light ocherous. At about two-thirds the wing length, the cell has a faint dark brown apical spot. The hindwing is whitish fuscous with ocherous cilia. The front leg is rich brown, while the middle leg is somewhat lighter, and the hind leg white. The abdomen is whitish ocherous. This species is superficially similar to A. unipunctella, but can be distinguished by the darker rich brown color and the light costal edge.
Wingspan: 22-24 mm (Duckworth, 1964)
Adult Structural Features: Duckworth (1964) provides descriptions and illustrations of the male and female genitalia. Antaeotricha decorosella is very similar to A. unipunctella but it differs in the presence of a dense, brushlike group of spines on the dorsal lobes of the anellus in the male genitalia, and in the location of the genital opening at the anterior edge of the genital plate in the female.
Adult ID Requirements: Identifiable from good quality photos of unworn specimens.
Immatures and Development: The larval life history and ecology are largely undocumented. The larvae are known to use at least two species of oaks, and are presumed to be leaftiers as are other oak-feeders in this genus.
Larvae ID Requirements: Identifiable only through rearing to adulthood.
Distribution in North Carolina
Distribution: Antaeotricha decorosella is found in the eastern US, but the range is poorly documented due to the paucity of records. Duckworth (1964) examined specimens from New Jersey, Massachusetts, North Carolina and Florida. The one historical record from North Carolina was from Tryon in Polk Co.
County Map: Clicking on a county returns the records for the species in that county.
Flight Dates:
 High Mountains (HM) ≥ 4,000 ft.
 Low Mountains (LM) < 4,000 ft.
 Piedmont (Pd)
 Coastal Plain (CP)

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Flight Comments: The flight season is poorly documented. All specimens examined by Duckworth (1964) were collected in July and August.
Habitats and Life History
Habitats: The habitats are poorly documented. The known oak hosts are associated with dry to xeric forested habitats such as south-facing slopes or dry rocky ridge lines.
Larval Host Plants: Duckworth (1964) listed Bear Oak Quercus ilicifolia and Blackjack Oak Q. marilandica as hosts.
Observation Methods: The adults occasionally visit lights.
Wikipedia
See also Habitat Account for General Dry-Xeric Hardwood Forests
Status in North Carolina
Natural Heritage Program Status:
Natural Heritage Program Ranks: GNR SH
State Protection: Has no legal protection, although permits are required to collect it on state parks and other public lands.
Comments: We have only a single historical record from the vicinity of Tryon in Polk County.