Moths of North Carolina
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View PDFGeometridae Members: Tetracis Members: 152 NC Records

Tetracis crocallata Guenée, [1858] - Yellow Slant-line

Tetracis crocallataTetracis crocallataTetracis crocallataTetracis crocallata
Taxonomy
Superfamily:
Geometroidea		 Family:
Geometridae		Subfamily:
Ennominae		Tribe:
Ourapterygini		P3 Number:
91a1409		 MONA Number:
6963.00
Comments: One of thirteen species in this genus that occur in North America (Ferris and Schmidt, 2010), two of which are found in North Carolina.
Identification
Field Guide Descriptions: Covell (1984); Beadle and Leckie (2012)Online Resources: MPG, BugGuide, iNaturalist, Google, BAMONA, GBIF, BOLD                                                                                 
Adult Markings: Both species of Tetracis that occur in North Carolina are moderately large, angular-winged Geometrids. The ground color is uniformly pale and the forewings are marked with a single straight line (postmedian) that crosses their forewings from inner margin to the apex or to the costa just in front of the apex. Other similarly sized, pale Geometrids with a strong transverse line either have more than one line or the line terminates or makes a sharp bend before it reaches the apex. Tetracis crocallata is more yellowish than cahexiata, frequently dusted with light brown, and possesses discal dots that are missing in cahexiata. The transverse line is characteristically darker brown and more contrasting in crocallata than in cahexiata.
Adult Structural Features: Antennae are filiform in both sexes, although the males' are somewhat fasciculate.
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.
Tetracis crocallataAlamance 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.
Habitats and Life History
Habitats: Forests, woodlands, and wooded swamps (Wagner et al., 2001). Our records come from swamp forests in the Coastal Plain; riparian, shoreline, and mesic forests in the Piedmont; and riparian and cove forests in the Mountains.
Larval Host Plants: Larvae are polyphagous, feeding on a wide variety of hardwood trees, including alder (Alnus), birch (Betula), Box-elder (Acer negundo), cherry (Prunus), chestnut (Castanea), elderberry (Sambucus), sumac (Rhus), and willow (Salix) (Wagner et al., 2001). - View
Wikipedia
See also Habitat Account for General Hardwood Forests
Status in North Carolina
Natural Heritage Program Status:
Natural Heritage Program Ranks: G5 SNR [S3S4]
State Protection: Has no legal protection, although permits are required to collect it on state parks and other public lands.
Comments:

 Photo Gallery for Tetracis crocallata - Yellow Slant-line

 43 photos are available. Only the most recent 30 are shown.
Tetracis crocallata
Recorded by: K. Bischof on 2025-07-29
Transylvania Co.
Comment: 		Tetracis crocallata
Recorded by: Jim Petranka and Becky Elkin on 2025-07-26
Madison Co.
Comment:
Tetracis crocallata
Recorded by: Owen McConnell on 2024-08-06
Graham Co.
Comment: 		Tetracis crocallata
Recorded by: Owen McConnell on 2024-05-26
Graham Co.
Comment:
Tetracis crocallata
Recorded by: K. Bischof on 2024-05-07
Transylvania Co.
Comment: 		Tetracis crocallata
Recorded by: Jim Petranka and Becky Elkin on 2024-05-01
Madison Co.
Comment:
Tetracis crocallata
Recorded by: Emily Stanley on 2024-04-10
Buncombe Co.
Comment: 		Tetracis crocallata
Recorded by: Emily Stanley on 2024-04-10
Buncombe Co.
Comment:
Tetracis crocallata
Recorded by: Owen McConnell on 2023-08-15
Graham Co.
Comment: 		Tetracis crocallata
Recorded by: Jim Petranka and Becky Elkin on 2023-07-12
Madison Co.
Comment:
Tetracis crocallata
Recorded by: K. Bischof on 2023-05-13
Transylvania Co.
Comment: 		Tetracis crocallata
Recorded by: K. Bischof on 2023-05-13
Transylvania Co.
Comment:
Tetracis crocallata
Recorded by: Chuck Smith on 2023-05-01
Gates Co.
Comment: 		Tetracis crocallata
Recorded by: Jim Petranka on 2023-04-20
Madison Co.
Comment:
Tetracis crocallata
Recorded by: K. Bischof on 2023-04-20
Transylvania Co.
Comment: 		Tetracis crocallata
Recorded by: Owen McConnell on 2022-09-03
Graham Co.
Comment:
Tetracis crocallata
Recorded by: K. Bischof on 2022-07-25
Transylvania Co.
Comment: 		Tetracis crocallata
Recorded by: Vin Stanton on 2022-07-07
Buncombe Co.
Comment:
Tetracis crocallata
Recorded by: Richard Teper on 2022-06-26
Avery Co.
Comment: 		Tetracis crocallata
Recorded by: K. Bischof on 2022-04-30
Transylvania Co.
Comment:
Tetracis crocallata
Recorded by: Owen McConnell on 2021-07-29
Graham Co.
Comment: 		Tetracis crocallata
Recorded by: Jim Petranka and Becky Elkin on 2021-07-22
Graham Co.
Comment:
Tetracis crocallata
Recorded by: tom ward on 2021-05-18
Buncombe Co.
Comment: 		Tetracis crocallata
Recorded by: Owen McConnell on 2021-05-10
Graham Co.
Comment:
Tetracis crocallata
Recorded by: Owen and Pat McConnell on 2019-08-09
Graham Co.
Comment: 		Tetracis crocallata
Recorded by: Ken Kneidel on 2019-05-03
Yancey Co.
Comment:
Tetracis crocallata
Recorded by: Owen McConnell on 2018-08-01
Graham Co.
Comment: 		Tetracis crocallata
Recorded by: Vin Stanton on 2018-07-20
Buncombe Co.
Comment:
Tetracis crocallata
Recorded by: Steve Hall and Bo Sullivan on 2018-07-18
Ashe Co.
Comment: 		Tetracis crocallata
Recorded by: Owen and Pat McConnell on 2018-07-14
Graham Co.
Comment: