Paper wasp (Polistes associus) feeding on nectar from Eryngium A species characterized by very light eyes, the ocelli arranged according to an equilateral triangle, The dorsal surface of antennae is black in both sexes, with wide and deep longitudinal groove. The Clypeus (brioad plate at facial front) is uniformly yellow, markedly depressed, with a distinct longitudinal ridge and a black stripe. Mte Vettore, Sibillini, Umbria, September 2021