Priocnemini, Banks, 1934

Loktionov, V. M., Lelej, A. S. & Liu, J. - X., 2019, A new genus of spider wasps (Hymenoptera, Pompilidae) from China, Far Eastern Entomologist 376, pp. 1-14 : 11-12

Key to the genera of the tribe Priocnemini

Females

1. Anterior margin of propodeum arched and steeply elevated over deeper metapostnotum. Mesosoma (dorsal view) distinctly narrowed near posterior margin of mesoscutum. Wings reduced, narrowed and diminished to vestigial with reduced venation ................. .......................................................................................................... Claveliocnemis Wolf

– Anterior margin of propodeum straight or weakly arched and hardly elevated over shallow metapostnotum. Mesosoma not narrowed near posterior margin of mesoscutum. Wings always normal-sized ........................................................................................................ 2

2. Clypeus enlarged, much wider than LID. Crossvein cu-a of hind wing originating at or distally to fork of vein M+Cu .......................................................................................... 3

– Clypeus normal-sized, narrower than LID. Crossvein cu-a of hind wing originating basally to fork of vein M+Cu ...................................................................................................... 5

3. Apical margin of clypeus weakly produced medially .......................... Malloscelis Haupt

– Apical margin of clypeus distinctly produced medially and laterally ............................. 4

4. Metatarsal claw with one additional tooth. Clypeus with depressed rim lateroapically. Mandible with one additional tooth .................................................... Priocnessus Banks

– Metatarsal claw with two or three additional teeth. Clypeus without depressed rim lateroapically. Mandible usually with two additional teeth ............... Platydialepis Haupt

5. Pronotum distinctly shortened, with well differentiated anterior vertical smooth face. Crossvein cu-a of fore wing originating at or weakly distally to fork M+Cu. Protibia dorso-apically with single very stout curved spine ............................... Caliadurgus Pate

– Pronotum normal-sized, without well differentiated vertical and smooth anterior face. Crossvein cu-a of fore wing originating distinctly distally to fork M+Cu. Protibia dorsoapically without single stout curved spine ....................................................................... 6

6. Inner side of metatibia with longitudinal groove along upper margin of brush .................. .................................................................................................. Eopompilus Gussakovskij

– Inner side of metatibia without longitudinal groove along upper margin of brush .......... 7

7. Axillae broad and sometimes not separated medially, its posterior margin almost straight (Loktionov & Lelej, 2015 : fig. D) ................................................................................... 8

– Axillae narrow, wedge-like and broadly separated medially (Loktionov & Lelej, 2015 : fig. E) ............................................................................................................................... 9

8. Abscissae Rs3 and Rs4 of fore wing not forming obtuse angle. T1 basally without petiole (Shimizu, 1994: fig. 335), sometimes with short petiole (Shimizu, 1994: fig. 336). Head and pronotum not polished, with dense punctures. S2 with strong transverse groove. F6– F9 entirely black .............................................................................. Priocnemis Schiødte

– Abscissae Rs3 and Rs4 of fore wing forming distinct obtuse angle ( Fig. 17 ). T1 basally with long and narrow petiole ( Fig. 7 ). Head and pronotum strongly polished, with scattered very fine punctures ( Figs 3–5 ). F6–F9 entirely ivory ( Figs 1–3 ). S2 with very fine transverse groove ............................................. Eopriocnemis Loktionov et Lelej , gen. n.

9. F1 6.0–7.0× as long as thick, 0.9× UID. Orbicular pecten with 8–10 strong long, distinctly decurved setae; arolium abnormally large, apically extending beyond apex of tarsal claw. Mesotibia dorsally almost without spines. Each scale-like tooth dorsally on metatibia without setae, strongly polished. Propodeum without sublateral longitudinal impression from spiracle towards apex ................................... Ctenopriocnemis Ishikawa

– F1 4.2–5.0× as long as thick, 0.8× UID. Orbicular pecten with six weak shorter, scarcely decurved setae; arolium normal, apically never extending beyond apex of tarsal claw. Mesotibia dorsally with a few short spines. Each scale-like tooth dorsally on metatibia with setae, not polished. Propodeum with distinct or weak sublateral longitudinal impression from spiracle towards apex ................................................................... Clistoderes Banks

Figures

Figs 17–29. Eopriocnemis albiflagellata Loktionov et Lelej, sp. n. 17, 18, 25, 27, 28 –

Figs 1–8. Eopriocnemis albiflagellata Loktionov et Lelej, sp. n., holotype, ♀. 1 – habitus,