Synonyms and other taxonomic changes
placed in genus Plagodis
by Parsons, Scoble, et al
in the 1999 Catalogue Geometrid Moths of the World
; this is the reference followed at All-Leps and BugGuide
Plagodis pulveraria occiduaria is the North American subspecies, and is called the American Barred Umber; the Eurasian subspecies is P. pulveraria pulveraria and is known as the Barred Umber
Explanation of Names
pulveraria is Latin for "of or belonging to dust or sand": Linnaeus described the wings as "testaceo-pulverulentis", with testaceo- referring to a light earth-color, perhaps best translated as "sandy" or "tawny", and pulverulentis meaning "dusty"
subspecies P. pulveraria occiduaria was described in 1861 by Walker, who originally placed it in genus Numeria
subspecies P. pulveraria pulveraria
was described in 1758 by Linnaeus
, who originally placed it in genus Phalaena
one of 6 species in this genus in North America listed at All-Leps
Adult: forewing light brown with extensive black speckling and large irregular-shaped dark brown patch in median area; hindwing slightly paler and lacking patch, although speckling is denser in area of anal angle
The subspecies P. pulveraria occiduaria occurs in North America from Newfoundland to Northwest Territories and British Columbia, south in the west to California, south in the east to Georgia (absent from Texas and the southern great plains).
The nominate subspecies (P. pulveraria pulveraria) occurs in Eurasia.
adults fly from May to August
larvae feed on leaves of birch, hazelnut, hawthorn, willow
other species of Plagodis
have a different forewing pattern (compare images
of all 6 species in North America at CBIF)
Scoble, Malcolm. (ed.) 1999. Geometrid Moths of the World; a Catalogue
. CSIRO Publishing. 1,312 pp.
23 pinned adult images
plus collection site map (All-Leps)
live adult image
of Eurasian subspecies P. pulveraria pulveraria
by Philippe Mothiron, France (Moths and Butterflies of Europe and North Africa)
and references (Brian Pitkin, Butterflies and Moths of the World)
distribution in Canada
list of provinces and territories (CBIF)
presence in California; list
of 4 specimen records with date and location (U. of California at Berkeley)