|
The Barred Red (''Hylaea fasciaria'') is a moth of the family Geometridae. The species can be found in Central and North Europe, Urals, Caucasus, Altai and East Siberia. The wingspan is 27–40 mm. The forma ''fasciaria'' has a rust-red leaf colour, the forma ''prasinaria'' has green coloured wings. Both have on the front wings two slightly irregular curved, thin transverse bands, the midfield thus closed has usually a slightly darker colour. These bands are pale whitish coloured in the rust-red form, in the green form the colouring varies from pale whitish to beige to light brown. In addition in the green form the front edge of the front wing (costa) is weakly coloured in the same shade, the outer edge of both pairs of wings is fringed in this colour. The hindwings are usually somewhat lighter in colour and have a more or less clear, pale cross line in the second half of the wing. In addition to the two main forms, there are other colour variants with different shades of green or plain brown. "Linne twice described this species; first a worn, greyish red form, then on the following page (as ''prosapiaria'') a brighter red example. Both forms show the 2 curved lines of the forewing and 1 on the hindwing. — ab. ''grisearia'' Fuchs differs little from Linnes first type, but is stillgreyer. Frequent in Scotland. Also recorded from Germany and Austria. — ab. ''manitaria'' H.-Sch. is of a umform dark liver-colour with the lines obliterated. — ab. ''cinereostrigaria'' Klem. has the lines dark grey instead of white. The type specimens (females) were also narrow-winged. — ab. ''ochreochrearia'' Joan. (= ''ochracearia'' Rbl.) is clear ochreous, nearly as in ''Ennomos erosaria'' ab. ''intermediaria'' Gmpbg. is a transitional form, green with red costal margin, fringes, and edging to the lines. — ''prasinaria'' Schiff. is an interesting green form with the white lines usually well-developed and is common in some localities, the larva feeding on pines and spruce fir, while that of typical ''fasciaria'' feeds on Scotch fir. ab. ''extiticta'' Vorbr. Mull-Rutz is a modification of ''prasinaria'', darker green with the white lines almost or entirely obsolete." 〔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 in two generations from April to October. . The caterpillars feed on coniferous trees, including ''Pinus sylvestris'' and ''Picea abies''. Image:Hylaea fasciaria.jpg Image:IKAl 20100808 SchmetterlingC.jpg ==References== #''The flight season refers to the Belgium and the Netherlands. This may vary in other parts of the range.'' 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「Hylaea fasciaria」の詳細全文を読む スポンサード リンク
|