FIGURES 20–26 in Key to the Oriental species of Passaloecus Shuckard (Hymenoptera: Crabronidae), with descriptions of four new species from China

FIGURES 20–26. Passaloecus petiolatus Ma et Li, sp. nov. (Male). 20 Frontal view of head; 21 Ventral view of antennal segments I–XIII; 22 Dorsal view of propodeum; 23 Dorsal view of gastral tergum I; 24 Dorsal view of male genitalia; 25 Lateral view of male genitalia; 26 Ventral view of male genitalia (scale line for figure 21: 1 mm; for 20, 22 and 23: 1.31 mm; for 24, 25 and 26: 1.63 mm).