What is "harpactorini"

Harpactorini is a tribe of the Harpactorinae (assassin bugs). This group is the most diverse of the entire assassin bug family, with 51 genera recognized in the Neotropical Region and 289 genera and 2003 species overall.

This tribe contains the only genera of the reduviidae with exaggerated modifications of the pronotum, such as the wheel bug ( arilus) and the strongly raised and divided posterior pronotal lobe in Ulpius Stål, 1865.