Brown Scallop Geometridae

Philereme vetulata (Denis & Schiff., 1775)

Description: Wingspan 26-32mm. Adults are greyish brown. Both wings have scalloped fringes. The body is long and narrow with an anal tuft.

Key Identification Features:

Sets:  male upperside

Flight Period: Throughout July.

Status: Only known from Crom Estate, Fermanagh where it was first discovered in 1996. Regular trapping at this site has produced other individuals. However, it has not been discovered at other suitable localities where the foodplant occurs. Evidently rare in Ireland, reported from a single site in Kenmare, Kerry in the late 1930s and also Lough Cutra, Galway in 1996.

Ecology: A species associated with woodland clearings and fens. Adults seldom come to light, which might account for its scarceness and possible absence at other suitable sites. The larvae can be found in May and June on Buckthorn Rhamnus cathartica, which is the only known foodplant. It overwinters as an egg.

World Distribution: Across Europe to eastern Siberia.

Bradley & Fletcher number: 1791 Agassiz number: 70.118

Additional information:

UK Moths account


 Thompson, R. S. & Nelson, B., 2003 (Oct 2). [In] The Butterflies and Moths of Northern Ireland