70.047 BF1720 – The Gem – Geometridae – Orthonama obstipata
The Gem – Geometridae – Larentiinae – Orthonama obstipata – colour code •
STATUS – Last recorded November 2003 – A very rare immigrant to Derbyshire. This specimen was trapped in Nov 2003 at Foremark Reservoir in the south of the county. There are very few records of this species being seen or captured in Derbyshire. Several in the 1800’s and then four records in the 1960’s.
ID POINTERS – The ground colour of the male wing is an orange-brown with a wavy cross-band running through the central area of the forewing. This band is usually a darker contrasting purple-brown. Can be very faded and most often is on migrants. The female is better marked being a deep rosewood-brown with a distinctive white ring shaped central forewing spot and faint whitish wavy cross-lines.
FLIGHT PERIOD – Can be trapped anytime between April – November.
IMAGES – Male – Foremark Reservoir – Image by Tony Davison©
The Gem – male
