Nepa (genus)

For the village in Nepal, see Nepa.
Nepa
Nepa cinerea
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hemiptera
Infraorder: Nepomorpha
Family: Nepidae
Genus: Nepa
Linnaeus, 1758[1]

Nepa is a genus belonging to the family Nepidae, known as water scorpions.

They are oval-bodied aquatic insects with raptorial front legs. Like other members of Nepidae they have a pair of non-retractable cerci-like breathing tubes on the terminal abdominal segment, a character which readily distinguishes them from Belostomatidae. Their primary staple are other insects and small aquatic vertebrates. They can inflict a painful bite when handled.[2]

Etymology

'Nepa' is a classical Latin word for a 'scorpion' or 'crab'.[3]

Species

N. cinerea

A partial list of species includes:[4]

N. apiculata is the only species found in United States and is widely distributed,[2] while N. cinerea is found in Europe.

Linnaeus lists a number of species in his initial description of the genus, many of which, if not all, have been moved to other genera.

References

  1. Carl von Linné (1757). Systema naturae (10 ed.). p. 440.
  2. 2.0 2.1 Donald Borror; Richard White (1970). A field guide to the insects of America north of Mexico. Houghton Mifflin. p. 114. ISBN 978-0-395-07436-7.
  3. 'Nepa' on latin-dictionary.net
  4. 'Nepa' on ITIS.gov

External links