Lesser silver water beetle
- Lesser silver water beetle
Taxobox
name = Lesser silver water beetle
status = EN
regnum = Animalia
phylum = Arthropoda
classis = Insecta
ordo = Coleoptera
familia = Hydrophilidae
genus = "Hydrochara"
species = "H. caraboides"
binomial = "Hydrochara caraboides"
binomial_authority = (Linnaeus, 1758)The lesser silver water beetle ("Hydrochara caraboides") is a species of water scavenger beetle (family Hydrophilidae) only found in the Somerset Levels, Cheshire and north-east Wales in the United Kingdom. It is classified as an endangered species, protected under Schedule 5 of the Wildlife and Countryside Act 1981.
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.The beetle is about 15 mm long and, despite the name, is actually black in colour. 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.
External links
* [http://www.arkive.org/species/ARK/invertebrates_terrestrial_and_freshwater/Hydrochara_caraboides/ ARKive page, with pictures]
* [http://www.ukbap.org.uk/UKPlans.aspx?ID=377 Species Action Plan]
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