Moths of North Carolina
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View PDFPyralidae Members: Macrorrhinia Members: 22 NC Records

Macrorrhinia endonephele (Hampson, 1918) - Alligatorweed Stemborer Moth

Macrorrhinia endonepheleMacrorrhinia endonepheleMacrorrhinia endonephele
Taxonomy
Superfamily:
Pyraloidea		 Family:
Pyralidae		Subfamily:
Phycitinae		Tribe:
Phycitini		P3 Number:
80a0429		 MONA Number:
5913.00		 MONA Synonym:
Arcola malloi		Other Common Names:
Reddish Macrorrhinia, Alligatorweed Moth, Alligatorweed Stem Borer Moth
Identification
Field Guide Descriptions: Online Resources: MPG, BugGuide, iNaturalist, Google, BAMONA, GBIF, BOLD                                                                                 
Genitalia and other structural photos
Distribution in North Carolina
Distribution:
County Map: Clicking on a county returns the records for the species in that county.
Macrorrhinia endonepheleAlamance Alexander Alleghany Anson Ashe Avery Beaufort Bertie Bladen Brunswick Buncombe Burke Cabarrus Caldwell Camden Carteret Caswell Catawba Chatham Cherokee Chowan Clay Cleveland Columbus Craven Cumberland Currituck Dare Davidson Davie Duplin Durham Edgecombe Forsyth Franklin Gaston Gates Graham Granville Greene Guilford Halifax Harnett Haywood Henderson Hertford Hoke Hyde Iredell Jackson Johnston Jones Lee Lenoir Lincoln Macon Madison Martin McDowell Mecklenburg Mitchell Montgomery Moore Nash New Hanover Northampton Onslow Orange Pamlico Pasquotank Pender Perquimans Person Pitt Polk Randolph Richmond Robeson Rockingham Rowan Rutherford Sampson Scotland Stanly Stokes Surry Swain Transylvania Tyrrell Union Vance Wake Warren Washington Watauga Wayne Wilkes Wilson Yadkin Yancey
Flight Dates:
 High Mountains (HM) ≥ 4,000 ft.
 Low Mountains (LM) < 4,000 ft.
 Piedmont (Pd)
 Coastal Plain (CP)

Click on graph to enlarge 		Image showing flight dates by month for High Mountains greater than 4,000 feet, Low Mountains, Piedmont, and Coastal Plain: adults.
Habitats and Life History
Habitats: We have records mainly from the open, marshy habitats where Alligator-weed is found.
Larval Host Plants: Larvae feed primarily or exclusively on Alligator-weed (Alternanthera philoxeroides) (Brown, 1973). - View
Wikipedia
See also Habitat Account for Exotic Invaded Habitats
Status in North Carolina
Natural Heritage Program Status:
Natural Heritage Program Ranks: GNR SE
State Protection:
Comments: Exotic - introduced in the 1970s from South America to control Alligator-weed, its native host plant (Brown, 1973).

 Photo Gallery for Macrorrhinia endonephele - Alligatorweed Stemborer Moth

Photos: 15
Macrorrhinia endonephele
Recorded by: Dean Furbish and Joy Wiggins on 2025-09-20
Wake Co.
Comment: 		Macrorrhinia endonephele
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:
Macrorrhinia endonephele
Recorded by: David George, Jeff Niznik on 2023-09-20
Durham Co.
Comment: 		Macrorrhinia endonephele
Recorded by: David George, Jeff Niznik on 2023-09-20
Durham Co.
Comment:
Macrorrhinia endonephele
Recorded by: Steve Hall on 2022-08-02
Durham Co.
Comment: 		Macrorrhinia endonephele
Recorded by: R. Newman on 2021-10-12
Carteret Co.
Comment:
Macrorrhinia endonephele
Recorded by: Steve Hall and Bo Sullivan on 2021-10-03
Moore Co.
Comment: 		Macrorrhinia endonephele
Recorded by: Dean Furbish on 2021-09-17
Wake Co.
Comment:
Macrorrhinia endonephele
Recorded by: Dean Furbish on 2021-09-17
Wake Co.
Comment: 		Macrorrhinia endonephele
Recorded by: R. Newman on 2021-07-24
Carteret Co.
Comment:
Macrorrhinia endonephele
Recorded by: R. Newman on 2020-11-10
Carteret Co.
Comment: 		Macrorrhinia endonephele
Recorded by: Mark Shields on 2019-10-25
Onslow Co.
Comment:
Macrorrhinia endonephele
Recorded by: Mark Shields on 2019-10-25
Onslow Co.
Comment: 		Macrorrhinia endonephele
Recorded by: Stephen Hall on 2019-09-30
Orange Co.
Comment:
Macrorrhinia endonephele
Recorded by: Robert Gilson on 2016-10-27
Mecklenburg Co.
Comment: