The Gem Geometridae

Nycterosea obstipata (Fabricius, 1794)

Description: Wingspan 18-21mm. Adult males are pale brown with a dark central band. Females overall are darker with a small white spot and dark centre.

Key Identification Features:

Sets:  male upperside

Flight Period: Adults have been taken in N. Ireland during July.

Status: An immigrant from southern Europe that arrives in southern Britain and Ireland in most years. Rarely seen in N. Ireland, the last record was in 1989 at Castle Caldwell, Fermanagh. There are a number of early 20th century records from Ballycastle and Cushendall, Antrim and Londonderry.

Ecology: Adults are attracted to light and are most likely to appear during the summer months especially in coastal regions.

Bradley & Fletcher number: 1720 Agassiz number: 70.047

Additional information:

UK Moths account


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