Yellow-faced green beetle
| Yellow-faced green beetle | ||||||||||||
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Yellow-tipped green beetle ( Chlaeniellus vestitus ) |
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| Scientific name | ||||||||||||
| Chlaeniellus vestitus | ||||||||||||
| ( Paykull , 1790) |
The Gelbrand Green Beetle or yellow edge Samtläufer ( Chlaeniellus vestitus ) is a beetle from the family of ground beetles . He was previously assigned to the subfamily Chlaeniinae, which is no longer considered independent today.
The generic name Chlaeniellus is the diminutive of Chlaenius , which comes from Old Gr. χλαῖνα chlāīna "coat" is derived. It refers to the thick hairs that most species of the genera Chlaenius and Chlaeniellus have. Chlaeniellus was previously listed as a subgenus of Chlaenius . The species name vestitus ( Latin vestītus, a, um ) means "clothed".
The German name Gelbrand-Grünkäfer alludes to the yellow border. However, it can be misunderstood, because Chlaeniellus vestitus belongs to a group of very similar green beetles with yellow-rimmed green wing-coverts and is particularly similar to the species Chlaenius spoliatus , Chlaenius festivus and Chlaenius velutinus , which like him all love moisture and are often associated with Chlaeniellus vestitus .
Characteristics of the beetle
With a length of just under nine to eleven millimeters, the beetle is significantly smaller than the similar species mentioned above. In addition, it differs from these in that the side edge of the pronotum is colored yellow (Fig. 1) and the yellow side edge of the elytra is not only wider at the back, but is also stepped to jagged (Fig. 2).
The head, pronotum and elytra are green to copper-colored, antennae and legs are yellow.
The mouthparts point forward, the end links of the jaw and lip probes are spindle-shaped and truncated at the front. The eleven-limbed antennae are thread-shaped and only from the fourth limb are more densely hairy ( pubescent ) and therefore appear more dull there.
The laterally bordered, heart-shaped pronotum is clearly narrowed towards the base. It is more clearly punctured than the head and elytra (Fig. 1). Its margin is thinly yellow.
The green elytra are more densely hairy than the pronotum and more matt than this (Fig. 1). They widen up to the last third and end together rounded. From the point where the wing covers narrow towards the back, the yellow stripe on the outer edge is clearly widened and jagged against the green of the wing cover. The elytra are striped by rows of dots, the short row next to the label (scutellar stripe ) is followed by eight to nine further rows of dots. The intervals between the rows of points are all equally curved and finely dotted. The lateral edge of the elytra is clearly shown in front, tapering towards the back.
The legs are typical walking legs and enable nimble movement. The tarsi are five-part. In the males, the three posterior tarsal links on the front legs are square.
biology
The occurrence of the beetles is tied to moist places, but otherwise no demands are made on the biotope ( eurytop ). It occurs on sandy to muddy banks of standing or flowing water, in damp meadows or swamps or in sand pits.
The species overwinters as an imago and reproduces in spring. The eggs are deposited near the water, usually under stones or pieces of wood in the upper moist soil layers. The life cycle is one year.
Beetles and larvae are predatory. The prey consists of small animals that live near the water (worms, snails, insects and insect larvae).
distribution
The species is represented in the western Palearctic from North Africa across Central Europe to southern Northern Europe, it is absent in Norway , Finland and Northern Ireland . In Central Europe, the beetle is not uncommon from the plain up to about 600 meters above sea level.
literature
- Heinz Joy, Karl Wilhelm Harde, Gustav Adolf Lohse: The beetles of Central Europe . tape 2 . Adephaga 1. Elsevier, Spektrum, Akad. Verl., Munich 1976, ISBN 3-87263-025-3 .
- Ekkehard Wachmann , Ralph Platen, Dieter Barndt: Ground beetles - observation, way of life . 1st edition. Naturbuch-Verlag, Augsburg 1995, ISBN 3-89440-125-7 .
- Svatopluk Bílý: Coléoptères, adaptation française , Gründ Publishing House 1990; ISBN 2-7000-1824-9 .
Individual evidence
- ↑ a b Chlaeniellus vestitus in Fauna Europaea. Retrieved August 24, 2011
- ↑ Sigmund Schenkling: Explanation of the scientific beetle names.
Web links
- Chlaeniellus vestitus in Fauna Europaea. Retrieved September 14, 2011