1) Arthropod genus 2) Genus nepa 3) Genus of the water scorpion 4) Genus of water scorpions 5) Impact crater on Mars 6) Scorpion genus Found on https://www.crosswordclues.com/clue/nepa
[genus] 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. T... Found on http://en.wikipedia.org/wiki/Nepa_(genus)
• (n.) A genus of aquatic hemipterus insects. The species feed upon other insects and are noted for their voracity; -- called also scorpion bug and water scorpion. • (n.) A genus of aquatic hemipterus insects. The species feed upon other insects and are noted for their voracity; -- called also scorpion bug and water scorpion.Nepa: words i... Found on http://thinkexist.com/dictionary/meaning/nepa/
Ne'pa noun [ Latin nepa scorpion.] (Zoology) A genus of aquatic hemipterous insects. The species feed upon other insects and are noted for their voracity; -- called also scorpion bug and water scorpion . Found on http://www.encyclo.co.uk/webster/N/14