''Plagodis pulveraria'', the barred umber, is a moth of the family Geometridae. The species was first described by Carl Linnaeus in his 1758 10th edition of ''Systema Naturae''. It is found throughout much of the Palearctic realm from Ireland to

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

, and in the

Nearctic realm The Nearctic realm is one of the eight biogeographic realms constituting the Earth's land surface. The Nearctic realm covers most of North America, including Greenland, Central Florida, and the highlands of Mexico. The parts of North America t ...

( Canada). The wingspan is 28–33 mm. The length of the forewings is 17–19 mm. "Variable, but always showing more or less of a reddish tone, with no markings except the rather straight antemedian and posteriorly strongly incurved postmedian lines of the forewing. The median area in the name-typical form is darkened. — ab. ''passetii'' Th.-Mieg is violaceous grey instead of reddish brown, the median band sharply expressed. - ab. ''marginepurpuraria'' Bastelb. is deeper red, the median area of forewing and basal half of hindwing more orange-, the rest more purple-tinged, lines thick, antemedian rather curved, postmedian less broad anteriorly than in the type. Rather small and round-winged. Rheingau - ab. ''unicolor'' Hirschke has both wings uniform brown, dark-dusted, without lines or band. - ''gadmensis'' Ratzer is a rather small, brighter (yellower) brown form from Switzerland (Gadmenthal), with the median area almost or quite concolorous, the lines remaining.- ''violacearia'' Graeser (15 h), from Amurland, is a very small form, coloured nearly like ''marginepurpuraria'', which must perhaps sink to it, but the thick lines are described as dark violet and it is not indicated that their form differs from the normal; compare, however, the following form. -''japonica'' Btlr. is a small race, or possibly distinct species, from Japan and Korea, bright deep red-brown, the median area as broad posteriorly as anteriorly, not differentiated in colour, the lines which bound it deeper red brown, the postmedian only projecting a little in the middle. Line on hindwing continued nearly to the costal margin, straighter than in ''marginepurpuraria'', which also shows this peculiarity."Prout, L.B. 1912–16. Geometridae. In A. Seitz (ed.) ''The Macrolepidoptera of the World''. The Palaearctic Geometridae, 4. 479 pp. Alfred Kernen, Stuttgart. The moth flies in two generations from mid-March to August. The larva feeds on various deciduous trees such as oak, birch and sallow.

Notes

#''The flight season refers to Belgium and the Netherlands. This may vary in other parts of the range.''

References

External links

Barred umber on ''UKMoths''''Lepiforum e.V.''''De Vlinderstichting''
Ourapterygini Moths of Asia Moths of Europe Moths of North America Taxa named by Carl Linnaeus Moths described in 1758 {{Ourapterygini-stub