Single-dotted Wave

Idaea dimidiata

4,653Records since 2000

JulyPeak month

73Counties with records

When it is recorded

Jan1

Feb0

Mar0

Apr2

May12

Jun504

Jul2,538

Aug1,138

Sep93

Oct1

Nov6

Dec0

GBIF records by month, 2000–2025 (all years combined).

#	County	Nation	Records
1	Oxfordshire	England	907
2	West Berkshire	England	421
3	Worcestershire	England	256
4	Antrim and Newtownabbey	Northern Ireland	138
5	Norfolk	England	133
6	Cambridgeshire	England	132
7	Newry, Mourne and Down	Northern Ireland	92
8	Causeway Coast and Glens	Northern Ireland	89
9	Ards and North Down	Northern Ireland	85
10	Armagh City, Banbridge and Craig	Northern Ireland	83
11	Suffolk	England	77
12	Kent	England	76
13	Telford and Wrekin	England	75
14	Cornwall	England	62
15	Lisburn and Castlereagh	Northern Ireland	56

3,938 England12 Scotland50 Wales631 Northern Ireland

Records per county (GADM level 2) and per nation; one record can count towards several areas. 73 counties in all.

Records since 2000: 4,653
Peak month: July
Counties with records: 73
Scientific name: Idaea dimidiata
Group: Butterflies and moths
NBN Atlas records since 2000: 3,931
Most recorded in: Oxfordshire, West Berkshire, Worcestershire, Antrim and Newtownabbey, Norfolk, Cambridgeshire, Newry, Mourne and Down, Causeway Coast and Glens, Ards and North Down, Armagh City, Banbridge and Craig, Suffolk, Kent +4
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Geometridae
Genus: Idaea
Name with authority: Idaea dimidiata (Hufnagel, 1767)
Described: 1767
Contributing datasets: 28