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The Heath Rivulet (''Perizoma minorata'') is a species of moth of the Geometridae family. It is found in most of Europe The wingspan is 16–20 mm.() is another inconstant species and shows some local and some individual minorata. variation. The name-typical form, as it occurs in the Alps, the mountains of Germany, Austria, S. France, etc., is the larger, paler race, the ground-colour being clear white, the markings often pale,the distal area at times with only quite weak dark shading. Hindwing whitish or very pale grey. - ''ericetata'' Steph., the only form known to me from Scotland, is considerably smaller, darker-marked, the white band - distally to the median generally with a sharper dividing-line, the hindwing darker grey. - ''norvegica'' Prout, from Norway, is as small as ''ericetata'' but otherwise forms a strong contrast to it, being more weakly marked than the name-type. — ab. ''monticola'' Strand is a rare aberration, with the median area not darkened at all, but only indicated by the lines which limit it. Mentioned from Norway and Scotland.〔Prout , L.B. 1912–16. Geometridae. In A. Seitz (ed.) ''The Macrolepidoptera of the World''. The Palaearctic Geometridae, 4. 479 pp. Alfred Kernen, Stuttgart. 〕 There is one generation per year with adults on wing from the end of June to August. The larvae feed on ''Euphrasia'' species. They feed on the developing seeds. The larvae can be found from August to September. It overwinters as a pupa. ==Subspecies== *''Perizoma minorata minorata'' *''Perizoma minorata ericetata'' Stephens, 1831 *''Perizoma minorata norvegica'' Prout, 1906 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Perizoma minorata」の詳細全文を読む スポンサード リンク
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