Moths of North Carolina
Scientific Name:
Common Name:
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View PDFCrambidae Members: Polygrammodes Members: 1 NC Records

Polygrammodes oxydalis (Guenée, 1854) - No Common Name

No image for this species.
Taxonomy
Superfamily:
Pyraloidea		 Family:
Crambidae		Subfamily:
Pyraustinae		Tribe:
Spilomelini		P3 Number:
80a0990		 MONA Number:
5228.10
Identification
Field Guide Descriptions: Online Resources: MPG, BugGuide, iNaturalist, Google, BAMONA, GBIF, BOLD                                                                                 
Adult Markings: This species was once considered to be a subspecies of Polygrammodes flavidalis (Munroe, 1958), but is currently treated as a separate species. The coloration and patterning is very similar to that of P. flavidalis (see species account for P. flavidalis), but the transverse lines are often interrupted and dotted along their lengths. A comprehensive study of both forms is needed to determine whether P. oxydalis merits being recognized as a separate species.
Adult ID Requirements: Identifiable from good quality photos of unworn specimens.
Immatures and Development: The larval life history is undocumented, but is presumed to be similar to that of P. flavidalis, with the larvae boring in the roots of ironweed.
Distribution in North Carolina
Distribution: Polygrammodes oxydalis is largely restricted to Florida and West Texas into Mexico. It rarely occurs outside of Florida and presumably due to rare, long-distance dispersal events. It probably is intolerant of freezing conditions. As of 2023, we have a single historical record for North Carolina.
County Map: Clicking on a county returns the records for the species in that county.
Polygrammodes oxydalisAlamance 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%20Hanover 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.
Flight Comments: The adults fly from May through October in Florida.
Habitats and Life History
Habitats:
Larval Host Plants: Larvae reportedly feed on ironweed (Vernonia spp.) (Heppner, 2007). - View
Wikipedia
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 a single historical record for this species as of 2023.