scor·pi·on·fly or scorpion fly 
(skôrpē-ən-flī′)
(skôrpē-ən-flī′)n.
1. A mecopterous insect of the family Panorpidae, having an elongated beak and in the male of most species a curved genital structure that resembles the sting of a scorpion.
2. Any mecopterous insect; a mecopteran.