Moths of North Carolina
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View PDFNoctuidae Members:
Macronoctua Members:
11 NC Records

Macronoctua onusta Grote, 1874 - Iris Borer

Macronoctua onustaMacronoctua onustaMacronoctua onustaMacronoctua onusta
Taxonomy
Superfamily: Noctuoidea Family: NoctuidaeSubfamily: NoctuinaeTribe: ApameiniP3 Number: 932442 MONA Number: 9452.00
Identification
Field Guide Descriptions: Covell (1984); Beadle and Leckie (2012)Online Resources: MPG, BugGuide, iNaturalist, Google, BAMONA, GBIF, BOLD                                                                                 
Adult ID Requirements: Identifiable from good quality photos of unworn specimens.
Distribution in North Carolina
Distribution:
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)

Click on graph to enlarge
Immature Dates:
 High Mountains (HM) ≥ 4,000 ft.
 Low Mountains (LM) < 4,000 ft.
 Piedmont (Pd)
 Coastal Plain (CP)

Click on graph to enlarge
Habitats and Life History
Habitats: In the Fall-line Sandhills, our records come from beaver pond habitats where Iris virginica is the likely host. In the Piedmont and Mountains, records come from residential areas where the hosts are probably cultivated species.
Larval Host Plants: Larval feed on members of the Iris family, including Iris and Gladiolus (Wagner et al.,2001) - View
Wikipedia
Status in North Carolina
Natural Heritage Program Status:
Natural Heritage Program Ranks: G5 SU
State Protection: Has no legal protection, although permits are required to collect it on state parks and other public lands.
Comments:

 Photo Gallery for Macronoctua onusta - Iris Borer

Photos: 10

Recorded by: Jim Petranka on 2024-07-15
Madison Co.
Comment: A large larva (ca. 3 cm) that was boring in the rhizome of Iris pseudacorus (Yellow Iris). 		Recorded by: Jim Petranka on 2021-10-09
Madison Co.
Comment:
Recorded by: Jim Petranka on 2021-10-09
Madison Co.
Comment: 		Recorded by: tom ward on 2021-09-22
Buncombe Co.
Comment:
Recorded by: Jim Petranka on 2020-10-24
Madison Co.
Comment: 		Recorded by: Jim Petranka on 2020-10-24
Madison Co.
Comment:
Recorded by: Jim Petranka and Becky Elkin on 2019-10-04
Madison Co.
Comment: 		Recorded by: Jim Petranka and Becky Elkin on 2019-10-04
Madison Co.
Comment:
Recorded by: Vin Stanton on 2018-09-25
Buncombe Co.
Comment: A garden with a large number of Irises is located nearby		Recorded by: Vin Stanton on 2018-09-25
Buncombe Co.
Comment: