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 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.