''Barretthydrus'' is a genus of
beetle
Beetles are insects that form the Taxonomic rank, order Coleoptera (), in the superorder Holometabola. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 40 ...
s in the family
Dytiscidae
The Dytiscidae, from the Ancient Greek word δυτικός (''dystikos''), meaning "able to dive", are the predaceous diving beetles, a family of water beetles. They occur in virtually any freshwater habitat around the world, but a few species l ...
, first described in 1927 by
Arthur Mills Lea
Arthur Mills Lea (10 August 1868 – 29 February 1932) was an Australian entomologist.
Lea was born in Surry Hills, New South Wales, the second son of Thomas Lea, from Bristol, England, and his wife Cornelia, ''née'' Dumbrell, of Sydney.
As a ...
.
[Lea, A.M. 1927]
On a new genus of water beetles (Dytiscidae).
''Records of the South Australian Museum (Adelaide)'' 3: 279-281 79 The type species is ''
Barretthydrus geminatus''.
The genus is
endemic
Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...
to
Australia
Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...
, where it is found in
New South Wales
New South Wales (commonly abbreviated as NSW) is a States and territories of Australia, state on the Eastern states of Australia, east coast of :Australia. It borders Queensland to the north, Victoria (state), Victoria to the south, and South ...
in the drainage basins of the
Murray-Darling, and in coastal drainage basins,
along the east coast from
Queensland
Queensland ( , commonly abbreviated as Qld) is a States and territories of Australia, state in northeastern Australia, and is the second-largest and third-most populous state in Australia. It is bordered by the Northern Territory, South Austr ...
to
Victoria
Victoria most commonly refers to:
* Queen Victoria (1819–1901), Queen of the United Kingdom and Empress of India
* Victoria (state), a state of Australia
* Victoria, British Columbia, Canada, a provincial capital
* Victoria, Seychelles, the capi ...
.
The genus contains the following species:
at Joel Hallan's Biology Catalog. Texas A&M University. Retrieved on 7 May 2012.
* '' Barretthydrus geminatus'' Lea, 1927
* '' Barretthydrus stepheni'' Watts, 1978
* '' Barretthydrus tibialis'' Lea, 1927
References
Dytiscidae genera
Taxa named by Arthur Mills Lea
{{Dytiscidae-stub