Fig. 1 in New data on the distribution of Polistes bischoffi Weyrauch, 1937 and Polistes helveticus Neumeyer, 2014, a synonym of Polistes albellus Giordani Soika, 1976 n. stat. (Hymenoptera: Vespidae)

Fig. 1. Frontal view of head of female Polistes albellus Giordani Soika, 1976 from Switzerland (a, individual RN0138),Orenburg Oblast of Russia (b, RN0404), Kazakhstan (c, RN0567),and Mongolia (d, paratype). / Vista frontal de la cabeza de hembras de Polistes albellus Giordani Soika, 1976 de Suiza (a, individuo RN0138), la provincia de Orenburg en Rusia (b, RN0404), Kazajistán (c, RN0567) y Mongolia (d, paratipo).