Drop-shaped water treadmill

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Drop-shaped water treadmill
Teardrop shaped water treadmill (Haliplus ruficollis), preparation

Teardrop shaped water treadmill ( Haliplus ruficollis ), preparation

Systematics
Superclass : Six-footed (Hexapoda)
Class : Insects (Insecta)
Order : Beetle (Coleoptera)
Family : Water treaders (Haliplidae)
Genre : Haliplus
Type : Drop-shaped water treadmill
Scientific name
Haliplus ruficollis
( De Geer , 1774)

The teardrop-shaped treadmill ( Haliplus ruficollis ) is a beetle from the family of the treadmill (Haliplidae).

features

The beetles reach a body length of 2 to 2.5 millimeters. The top of their very short and wide body is shiny. The pronotum is very wide and two and a half times as wide as it is long. It has no noticeable transverse impression in front of the base between the very short and straight basal lines. The lines run parallel and only up to the middle of the pronotum. The upper wings have their widest point behind the shoulders and taper strongly towards the tip. They are only provided with moderately strong point stripes, which are not marked with a larger dimple point at the base. The very fine row of dots next to the sash seam is much weaker than the others. The epipleurs are also provided with a series of rough points. The disc of the wing covers also bears blackish spots apart from the stripes.

Occurrence and way of life

The species is widespread in Europe, Asia Minor, Western Siberia and Turkestan . It is widespread in Central Europe and is common to very common. The animals live in clean, stagnant and slowly flowing waters.

swell

literature

  • Karl Wilhelm Harde , Frantisek Severa: The Kosmos-Käferführer. The Central European beetle. 4th, revised and expanded edition, by Edwin Möhn. Franckh-Kosmos Verlags-GmbH & Co KG, Stuttgart 2000, ISBN 3-440-06959-1 .
  • Adolf Horion : Faunistics of the German beetles. Volume 1: Adephaga - Caraboidea. Hans Goecke, Krefeld 1941.
  • Edmund Reitter : Fauna Germanica. The beetles of the German Reich (= digital library . 134). Neusatz and facsimile of the 5-volume edition Stuttgart 1908 to 1916. Directmedia Publishing, Berlin 2006, ISBN 3-89853-534-7 .