Pseumenes, Giordani Soika, 1935

Selis, Marco, 2017, The genus Pseumenes Giordani Soika, 1935 (Hymenoptera: Vespidae: Eumeninae) in the Philippine Islands, with description of a new species, Zootaxa 4306 (2), pp. 296-300 : 300

Key to species of Pseumenes occurring in the Philippine Islands

1 Vertex strongly swollen, posterior margin protruding ( Fig. 12 ); T3 and T4 with well developed apical lamella ( Fig. 13 ); body almost entirely smooth and shining, only sparse and shallow punctures confined to frons, T2 and S3–S4; black with extensive yellow markings....................................................................................................................................... P. polillensis (Giordani Soika)

- Vertex less strongly swollen, posterior margin not protruding; T3 and T4 without apical lamella; body extensively punctured; body almost entirely black, with little pale yellow markings............................................................................................................ 2

2 Scutellum, metanotum, propodeum and mesepisternum smooth, with extremely fine and ill-defined punctures ( Fig. 4 ); apical lamella of T2 not very distinct, similar to a weak reflexing of apical margin of tergum ( Fig. 3 ); wings extremely dark, almost opaque black, with strong bluish reflections.................................................................................................... P. azurescens sp. nov.

- Scutellum, metanotum, propodeum ( Fig. 9 ) and mesepisternum with well impressed and deep punctures; apical lamella of T2 distinct, separated from rest of the tergum by a deep furrow and strongly bent upward ( Fig. 10 ); wings brownish-transparent with very weak golden reflections............................................................................................................ P. palawanensis Giordani Soika

Figures

FIGURES 8 – 13. 8 – 10. Pseumenes palawanensis Giordani Soika, 1993, ♀, paratype. 8, Habitus; 9, Scutellum and metanotum in postero-dorsal view; 10, Apical margin of T 2. 11 – 13. Pseumenes polillensis (Giordani Soika, 1941), ♂. 11, Habitus; 12, Vertex in lateral view; 13, T 3 – 4 in dorsal view.

FIGURES 1 – 7. Pseumenes azurescens sp. nov., ♀, holotype. 1, Habitus; 2, Vertex in lateral view; 3, Apical margin of T 2; 4, Scutellum in dorsal view; 5, Propodeum in postero-dorsal view; 6, Apical half of T 1 in dorsal view; 7, Head in frontal view.