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Species Idaea dimidiata - Single-dotted Wave - Hodges#7126

Representative Images

Moth 20 - Idaea dimidiata Single-dotted Wave - Idaea dimidiata Which Scopula? - Idaea dimidiata Single-dotted Wave Moth - Idaea dimidiata Single-dotted wave? - Idaea dimidiata Geometridae: Idaea dimidiata - Idaea dimidiata - male Idaea - Idaea dimidiata Moth - Idaea dimidiata
Show images of: caterpillars · adults · both

Classification

Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Geometroidea (Geometrid and Swallowtail Moths)
Family Geometridae (Geometrid Moths)
Subfamily Sterrhinae
Tribe Sterrhini
Genus Idaea
Species dimidiata (Single-dotted Wave - Hodges#7126)

Hodges Number

7126

Other Common Names

Dotted Wave

Synonyms and other taxonomic changes

Idaea dimidiata (Hufnagel, 1767)
Phylogentic Sequence # 910535

Size

wingspan 18-20 mm

Identification

Specimens identified by DNA analysis:


Genitalia:

Range

New England, southeastern Canada, northwestern US, and British Columbia
a holarctic species, native to Europe

Habitat

damp areas such as wet woods and riverbanks

Season

On Block Island, RI, adults fly mainly June and July, with a partial second generation flying in August and September.(1)

Remarks

Introduced from Europe - no information could be found regarding date or location

See Also

Several species in the genus Scopula may look very similar. Check out the shape of the PM lines and also the shape of the outer margin of the hind-wings.
In the north, compare with Scopula cacuminaria:

In the south-eastern range, check out Scopula aemulata. The PM line is not smoothly curved.


The Large Lace-border Moth - Scopula limboundata has a slightly pointed hind-wing and a variable amount of a dark patch or dark banding, beyond the PM line. The PM line is not smoothly curved.

Internet References

Moth Photographers Group (2)
Barcode of Life Data Systems (BOLD) (3)
live adult image (Lynn Scott, Ottawa)
pinned adult image (CBIF)

Works Cited

1.Block Island Moths
2.North American Moth Photographers Group
3.BOLD: The Barcode of Life Data Systems
Contributed by Robin McLeod on 14 February, 2005 - 12:15am
Additional contributions by Tony-2, anitagould, Maury Heiman, Blocky, Robert H. Biagi, Steve Morris
Last updated 11 July, 2025 - 9:24am

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