Black-spotted brown thick-headed butterfly

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Black-spotted brown thick-headed butterfly
Black-spotted brown thick-headed butterfly (Thymelicus lineola)

Black-spotted brown thick-headed butterfly
( Thymelicus lineola )

Systematics
Class : Insects (Insecta)
Order : Butterflies (Lepidoptera)
Family : Thick-headed butterfly (Hesperiidae)
Subfamily : Hesperiinae
Genre : Thymelicus
Type : Black-spotted brown thick-headed butterfly
Scientific name
Thymelicus lineola
( Ochsenheimer , 1808)
Front view; The sensor bulbs, which are also black on the underside, are characteristic
Undersides of males and females when mating

The black- eared brown thick -headed butterfly ( Thymelicus lineola ) is one of the common thick -headed butterflies, like the brown-headed brown thick-headed butterfly .

features

The moths reach a wingspan of 22 to 26 millimeters. They have orange-brown wing tops that have a dark outer edge with a light border. Some wing veins are dark in color. In contrast to the other two similar species of the genus, the males only have indistinct scented scales on the upper side of the forewings. In contrast to the brown-eared thick-headed butterfly, the underside of the antennae is black instead of brown-red and the entire underside of the wing is yellow-brown, without greenish-gray areas.

The caterpillars are about 21 millimeters long. They are colored light green and, in addition to a dark, light back stripe, have another light stripe on each side. The head is green, only brown on top with two yellow stripes.

Similar species

Occurrence

The animals are distributed throughout Europe with the exception of northern Scandinavia and in Central Asia up to the Amur . You can find them up to a height of 2,200 meters. In North America they were introduced into Ontario in 1910 and are sometimes considered pests where they are of economic importance, especially on timothy grasses ( phleum ). In Central Europe they can be found frequently and everywhere and live in dry as well as in wet areas such as. B. on dry grass , on the edges of forests and in wet meadows .

Flight time

They fly in one generation from mid-June to August. The eggs can be found from September, the caterpillars after wintering until June.

Food of the caterpillars

The caterpillars feed on various sweet grasses , such as. B. of common ball grass ( Dactylis glomerata ), pinnate twinkles ( Brachypodium pinnatum ) and sand riding grass ( Calamagrostis epigejos ).

development

The females lay their oval, elongated eggs in rows of three to ten on the leaf sheaths of dry grass. The caterpillars initially develop in the egg, but do not hatch until after the winter. They sit freely on the stalks and pupate on them by making a web on the top of a stalk.

swell

Individual evidence

  1. ↑ a b c d e Heiko Bellmann : The new cosmos butterfly guide. Butterflies, caterpillars and forage plants. Franckh-Kosmos, Stuttgart 2003, ISBN 3-440-09330-1 , p. 112.
  2. ↑ Tom Tolman, Richard Lewington: Die Tagfalter Europäische und Nordwestafrikas , P. 270f, Franckh-Kosmos Verlags-GmbH & Co, Stuttgart 1998, ISBN 3-440-07573-7
  3. ↑ Manfred Koch : We identify butterflies. Volume 1: Butterfly. 4th enlarged edition. Neumann, Radebeul / Berlin 1966, DNB 457244224 , pp. 120f.

Web links

Commons : Schwarzkolbiger Braun-Dickkopfffalter  - Album with pictures, videos and audio files