The lesser silver water beetle (''Hydrochara caraboides'') is a species of
water scavenger beetle (family Hydrophilidae).
Description
The beetle is about long and, despite the name, is actually black in color. It traps air with the hairs on the underside of its body in order to breathe below water, and it is this silver looking bubble of air that gives the beetle its name.
Distribution
''H. caraboides'' has a wide distribution across Europe.
In the
United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ...
, it is only found in the
Somerset Levels
The Somerset Levels are a coastal plain and wetland area of Somerset, England, running south from the Mendip Hills, Mendips to the Blackdown Hills.
The Somerset Levels have an area of about and are bisected by the Polden Hills; the areas to ...
,
Cheshire
Cheshire ( ) is a ceremonial and historic county in North West England, bordered by Wales to the west, Merseyside and Greater Manchester to the north, Derbyshire to the east, and Staffordshire and Shropshire to the south. Cheshire's county t ...
and north-east
Wales
Wales ( cy, Cymru ) is a Countries of the United Kingdom, country that is part of the United Kingdom. It is bordered by England to the Wales–England border, east, the Irish Sea to the north and west, the Celtic Sea to the south west and the ...
. It is classified as an
endangered species
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and inv ...
, protected under Schedule 5 of the
Wildlife and Countryside Act 1981
The Wildlife and Countryside Act 1981 is an Act of Parliament in the United Kingdom implemented to comply with European Council Directive 79/409/EEC on the conservation of wild birds. In short, the act gives protection to native species (especia ...
.
The northern population cluster currently consists of around 45 breeding pools, several being ditches, most of which have a floating raft of densely matted vegetation at their centre, and an area of shallow open water containing isolated stands of emergent vegetation. The effect from cattle poaching is considered crucial for the beetle's ability to breed successfully at these water bodies.
References
External links
Species Action Plan
{{DEFAULTSORT:Lesser Silver Water Beetle
Hydrophilinae
Beetles of Europe
Beetles described in 1758
Taxa named by Carl Linnaeus