Barretthydrus

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Cladus: Metapterygota
Infraclassis: Neoptera
Cladus: Eumetabola
Cladus: Endopterygota
Superordo: Coleopterida
Ordo: Coleoptera
Subordo: Adephaga

Familia: Dytiscidae
Subfamilia: Hydroporinae
Tribus: Hydroporini
Genus: Barretthydrus
Species (3): B. geminatus – B. stepheni – B. tibialis
Name

Barretthydrus Lea, 1927
Gender: masculine
Original status: valid genus
Type species: Barretthydrus geminatus Lea, 1927
Fixation: original designation [p. 279]

References

Lea, A.M. 1927: On a new genus of water beetles (Dytiscidae). Records of the South Australian Museum, 3: 279–281. PDF

Links

Australian Faunal Directory
ION
Nomenclator Zoologicus
Barretthydrus is a genus of beetles in the family Dytiscidae, containing the following species:[1]

Barretthydrus geminatus Lea, 1927
Barretthydrus stepheni Watts, 1978
Barretthydrus tibialis Lea, 1927

References

Dytiscidae Species List at Joel Hallan's Biology Catalog. Texas A&M University. Retrieved on 7 May 2012.