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The Grass Wave (''Perconia strigillaria'') is a moth of the Geometridae family. The species can be found in Europe East to the Urals, Asia Minor and the Tarbagatai Mountains (China). The wingspan is 36–41 mm. The forewing ground colour is white with fuscous irroration. The crosslines are wide The antennae are comb-like."White, with fuscous irroration; all the lines present, usually also a subterminal dark line. Median line (or shade) variable in position and thickness. - ab. ''herpeticaria'' Rbr. Antemedian and median lines of wing thick and closely approximated, sometimes confluent into a band. - ''grisearia'' Stgr. is a greyer form the white ground-colour nearly suppressed. Frequent in N. Europe, but not very sharply separable from the name-type. Most British examples are intermediate. - ''cretaria'' Ev. is a clearer white, weakly marked form from S. E. Russia, sometimes quite markingless." 〔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 moths fly from June to July depending on the location. The larvae feed on Cytisus scoparius and Calluna, Erica and Ulex species. ==References== 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「Perconia strigillaria」の詳細全文を読む スポンサード リンク
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