Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Previous events


Species Venusia cambrica - Welsh Wave - Hodges#7425

Welsh Wave - Venusia cambrica Welsh Wave - Venusia cambrica Welsh Wave - Venusia cambrica - male 1672 Venusia cambrica - Welsh Wave Moth 7425 - Venusia cambrica 1969 Venusia cambrica - Welsh Wave Moth 7425 - Venusia cambrica Some kind of carpet? - Venusia cambrica Venusia - Venusia cambrica 910269	Venusia cambrica - Venusia cambrica
Show images of: caterpillars · adults · both
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 Larentiinae
Tribe Asthenini
Genus Venusia
Species cambrica (Welsh Wave - Hodges#7425)
Hodges Number
Synonyms and other taxonomic changes
Venusia cambrica Curtis, 1839
Tephrosia scitularia Walker, 1860
Venusia cambricaria Guenée, [1858]
Acidalia nebulosaria Freyer, 1850
Venusia cambrica shuotsu Bryk, 1949
Eubolia erutaria Boisduval, 1840
Phylogenetic Sequence # 910269
wingspan 23-25 mm, based on two photos at CBIF
European specimens with reported wingspan of 27-30 mm
Adult: forewing white with several lines and dark brown bands crossing wing; terminal line composed of several black triangular spots at ends of veins (a distinguishing feature); median line black, irregular, but lacking prominent notch near costa; hindwing similar but lines fainter and present only on outer half
Specimens identified by DNA Analysis:


Larva: body greenish, marked with purple or brown blotches
across Canada from Newfoundland to British Columbia, south in the west to California, south in the east (Appalachians) to Georgia
also occurs throughout Eurasia
wet coniferous forests in the west; adults rest on tree trunks during the day
adults fly from June to September in New Brunswick and Quebec; March to August in California
larvae feed on leaves of alder, apple, birch, mountain ash, serviceberry, willow
Life Cycle
two generations per year
See Also
Brown-shaded Carpet (Venusia comptaria) is smaller (wingspan about 20 mm), terminal line composed of linear dashes (not triangular spots), median line has prominent notch near costa, and species does not occur in the west (compare images of both species at CBIF)
other species of Venusia also lack terminal lines composed of triangular spots
Internet References
pinned adult image by Nick Greatorex-Davies, plus species account (Ian Kimber, UK Moths)
live larva image (Kimmo Silvonen, Finland)
common name reference plus synonyms, links to images, foodplants, world distribution map (Markku Savela, FUNET)
foodplants; PDF doc plus flight season and life cycle (Macrolepidoptera of Mont Saint-Hilaire Region, McGill U., Quebec)
flight season in New Brunswick (Canadian Forest Service)
habitat and flight season in the west (Jeff Miller, Macromoths of Northwest Forests and Woodlands, USGS)
presence in California; list of 5 specimen records with dates and locations (U. of California at Berkeley)
presence in Georgia; list of recent records by James Adams [search on species "cambrica"] (Lepidopterists Society Season Summary, U. of Florida)
distribution in Canada list of provinces (CBIF)