Moths of North Carolina
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Eucosmomorpha Members:
18 NC Records

Eucosmomorpha nearctica Miller, 2001 - No Common Name

Eucosmomorpha nearcticaEucosmomorpha nearcticaEucosmomorpha nearctica
Taxonomy
Superfamily:
Tortricoidea		 Family:
Tortricidae		Subfamily:
Olethreutinae		Tribe:
Enarmoniini		P3 Number:
51a0691		 MONA Number:
3399.20
Identification
Field Guide Descriptions: Online Resources: MPG, BugGuide, iNaturalist, Google, BAMONA, GBIF, BOLDTechnical Description, Adults: Miller (2001)                                                                                 
Adult Markings: This species has an overall mottled brownish-orange appearance with two dark and partial or complete fasciae on the forewing. The following detailed description is based on that of Miller (2001). The vertex is brownish orange, while the antenna is brownish dorsally and darker ventrally. The labial palp is white basally and brownish distally, with a short terminal segment. The thorax and forewing ground are mottled with brownish orange. The most conspicuous marks on the forewing are two dark brown fasciae that angle outwardly from the costa. The first occurs at around one-fourth the wing length and typically terminates before reaching the middle, while the second is near the middle and in some specimens may extend to the tornal region. It is most likely to be interrupted near the middle of the wing and most strongly expressed at the costa. The costal has 5-10 short white strigulae that are angled outwardly and most pronounced on the apical half of the wing. These are separated in the outer one-third of the wing by sinuate orange striae. The speculum has three blackish brown longitudinal dashes, while the fringe is brownish orange distally and paler basally. The hindwing is grayish brown, with the fringe paler except for a grayish brown line near the base.
Forewing Length: 3.8 - 5.5 mm; mean = 4.6 mm (Miller 2001).
Adult Structural Features: Miller (2001) provides descriptions and illustrations of the male and female genitalia. In males, the sacculus is broad basally and there is a long, thick seta at the apex of the cucullus. The uncus is absent, while the socii are pulvinate and directed upwards in an uncus position. The aedeagus has two sinuous cornuti.
Structural photos
Adult ID Requirements: Identifiable from good quality photos of unworn specimens.
Immatures and Development: There currently is no information on the host plants or larval life history.
Distribution in North Carolina
Distribution: Although there are relatively few records for this species, it appears to be widely distributed in the eastern US. Specimens have been found from the Great Lakes region southwestward to eastern Louisiana and Mississippi, then eastward to Georgia and the Carolinas. There are also isolated records from Saskatchewan and Ontario, Canada. As of 2023, most of our records are from coastal sites, with one from the eastern Piedmont.
County Map: Clicking on a county returns the records for the species in that county.
Eucosmomorpha nearctica
Flight Dates:
 High Mountains (HM) ≥ 4,000 ft.
 Low Mountains (LM) < 4,000 ft.
 Piedmont (Pd)
 Coastal Plain (CP)

Click on graph to enlarge
Flight Comments: Miller (2001) reported records from late April through late August, which is consistent with our data for North Carolina.
Habitats and Life History
Habitats: The habitats are poorly documented, but most of our records are from mesic hardwoods in the Coastal Plain and a dry ridge in the Piedmont.
Larval Host Plants: The host plants are undocumented. - View
Observation Methods: The adults are attracted to UV lights, but perhaps only moderately so.
Wikipedia
Status in North Carolina
Natural Heritage Program Status:
Natural Heritage Program Ranks: GNR [S1S3]
State Protection: Has no legal protection, although permits are required to collect it on state parks and other public lands.
Comments: This seemingly rare species is widespread in the eastern US, but with only a few, widely scattered records. We need more information on its distribution and abundance before we can accurately assess its conservation status.

 Photo Gallery for Eucosmomorpha nearctica - None

Photos: 8

Recorded by: David George, Jeff Niznik, Kenneth Geisert, David Bradley, Julie Tuttle, Patrick Coin, Kaitlyn Elliott, Becky Watkins on 2024-08-17
Durham Co.
Comment: 		Recorded by: David George, Stephen Dunn, Jeff Niznik, Patrick Coin on 2024-06-22
Chatham Co.
Comment:
Recorded by: David George, Stephen Dunn, Jeff Niznik on 2023-08-18
Caswell Co.
Comment: 		Recorded by: David George, Stephen Dunn, Jeff Niznik on 2023-08-18
Caswell Co.
Comment:
Recorded by: J.B. Sullivan on 1998-04-25
Craven Co.
Comment: 		Recorded by: J.B. Sullivan on 1997-08-26
Pender Co.
Comment:
Recorded by: J.B. Sullivan on 1997-04-30
Jones Co.
Comment: 		Recorded by: J. B. Sullivan on 1993-06-24
Craven Co.
Comment: