The Brown Hairstreak (Thecla betulae)
Автор: Filming VarWild
Загружено: 2015-01-05
Просмотров: 5747
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The Brown Hairstreak (Thecla betulae Linné, 1758) is a butterfly in the family Lycaenidae. The range includes most of the Palaearctic.
It is the largest of the European Harstreaks. In Provence, this discrete butterfly is very local and fairly rare, certainly due to the fact that it spends most of its time around the canopy. They fly in one long generation from early-July to mid-October. Males meet around a favourite tree, the so-called "Master tree". The butterflies feed mainly on honey dew. Females require about a week to become fertile. From early September, the female lays singly white eggs on blackthorn (Prunus spinosa), Apricot (P. armeniaca) and Plum (P. domestica). The eggs overwinter and a caterpillar hatches around mid-March. The caterpillars feed only on leaves. At its final stage, the caterpillar becomes reddish and moves down to the leaf-litter where it pupates.
Extensive studies are required to better understand the choise of a "Master tree", where males and females meet.
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http://www.filming-varwild.com
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