Udea lutealis
| Udea lutealis | ||||||||||||
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Udea lutealis |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Udea lutealis | ||||||||||||
| ( Huebner , 1809) |
Udea lutealis is a butterfly from the family of Crambidae . The species is widespread across Europe.
features
The moths reach a wingspan of 23 to 26 millimeters. The forewings are cream or ocher yellow. The Kostalrand ( profile leading edge of the insect wing in the area of the Costa according to the Comstock-Needham system ) is often darker. The outer transverse line is strongly wavy, jagged in the front part, a tongue-shaped lobe in the rear part. A kidney flaw is right next to the lobe of the outer transverse line, a ring flaw is closer to the root zone. The inner transverse line is indistinct and mostly interrupted. The graduation line in the tip of the forewing is usually fuzzy and indistinct. The blemishes, the outer and inner transverse lines and the graduation line are dark brown. The hind wings are light gray to whitish and have a weak arch on the underside.
The length of the caterpillars is variable, it ranges from 13 to 15 millimeters. Well-nourished early larval stages in January are slightly longer than late larval stages in June. The caterpillar head of the first larval stages is yellowish-white and somewhat brownish. The last stage caterpillars have a pale yellowish brown head with brown markings. The head has posterolateral black spots. The stemmata are blackish brown, the stemmatal area has the same color as the head. The prothoracic shield is shiny and translucent, it has the same coloration as the lateral areas of the body and can have brown markings. The thoracic legs are colored as is the abdomen. The caterpillar body of the first larval stage is yellowish green and translucent, so that the internal organs on the back are visible. In later stages, the body is light amber and also translucent. The caterpillar body is provided with wide whitish subdorsal lines. Dark balls of feces may be visible in the rear segments. The respiratory openings (spiraculum) have the same coloration as the caterpillar. The inner horizontal trachea is clearly visible as a thin line. The hairs of the early and late larval stages are golden yellow and transparent. The whitish subdorsal lines of the abdomen converge on the anal segment. The darker internal organs are visible on the transparent spots. The belly feet are the same color as the belly. The end plates of the anal feet (planta) are elongated and thin, the wreaths of hooks are reddish brown.
Way of life and occurrence
In Central Europe, the species is more widespread in wetter locations such as fresh meadows, clearings, forest paths, etc. The moths fly at night from June to August. From around August one can find the oligophagous caterpillars that live in a web on the underside of the leaves of the following plants: dock ( Rumex ), buttercup ( Ranunculus ), plantain ( Plantago ), coltsfoot ( Tussilago ), knapweed ( Centaurea ), calendula ( Carduus) ), Strawberries ( Fragaria ), Artemisia , thistles ( Cirsium ), Rubus spp.,
distribution
The species is widespread in Europe. It has not yet been proven in Spain , the Mediterranean islands and Greece .
swell
Individual evidence
- ↑ Guide to the moths of Great Britain and Ireland. Udea lutealis. Ian Kimber, accessed September 29, 2008 .
- ↑ http://www.lepidoptera.pl/show.php?ID=1595&country=XX ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
literature
- František Slamka: The common moth (Pyraloidea) of Central Europe: determination - distribution - flight area - way of life of the caterpillars . 2nd partially revised edition 112 pp., Bratislava (1997) ISBN 80-967540-2-5
Web links
- www.lepiforum.de Taxonomy and photos
- European butterflies
- Udea lutealis at Fauna Europaea
- Markku Savela's Lepidoptera and some other lifeforms (English)
- Global Information System Common Moth (English)
- Catalog of the Lepidoptera of Belgium (English)