Paracyphononyx pilisquamatus, 2024

Liu, Yongxiu, Song, Zhiyan, Li, Qiang & Ma, Li, 2024, Two new species of the spider wasp genus Paracyphononyx Gribodo, 1884 (Hymenoptera, Pompilidae) in China, with a key to Chinese species, Zootaxa 5512 (1), pp. 80-92 : 81-82

Key to the Chinese species of the genus Paracyphononyx

Female (unknown for P. kollhoffi Haupt )

2. Metasomal terga 1–3 with squamiform pubescence; ocelli forming a right-angled triangle; ratio of malar space to mandible width at base = 5:12; ratio of SMC2 to SMC3 on vein M = 1:1..................... P. pilisquamatus Liu & Ma , sp. nov.

- Metasomal terga 1–3 covered with short, bluish-gray pubescence basally; ocelli forming an obtuse-angled triangle; ratio of malar space to mandible width at base = 5:8; ratio of SMC2 to SMC3 on vein M = 3:5............ P. alienus ( Smith, 1879)

3. Apical sternum strongly compressed laterally, with a distinct longitudinal ridge ventrally (as in Fig. 1G ); SMC3 strongly narrowed above, much shorter than below, quadrilateral, not petiolate; longer spur of hind tibia fully two-thirds of basitarsus................................................................................ P. pedestris ( Smith, 1855)

- Apical sternum moderately compressed laterally, without a longitudinal ridge ventrally ( Fig. 3G ); SMC3 strongly narrowed above and forming triangle, petiolate ( Fig. 3F ); longer spur of hind tibia fully one half of basitarsus........................................................................................... P. noncarinulatus Liu & Ma , sp. nov.

Male

1. All legs black ( Fig. 2A )................................................................................ 2

- Hind femora and tibiae red ( Fig. 4A )...................................................................... 4

2. POD = OOD; A1 + A2 = A3; vertex flat between eye tops................................... P. kollhoffi Haupt, 1938

- POD> OOD; A1 + A2> A3; vertex slightly convex between eye tops........................................... 3

3. Metasomal terga without white squamiform pubescence; ratio of malar space to mandible width basally = 5:8; paramere extending far beyond apex of digitus volsellaris, aedeagus with a very short, transparent membranous band apically, length of transparent membranous band about 0.2 × aedeagus........................................ P. alienus ( Smith, 1879)

- Metasomal terga 1–3 and hind coxa dorsally with white squamiform pubescence ( Fig. 2A ); ratio of malar space to mandible width basally = 6:12; paramere short, aedeagus with distinct, transparent membrane band apically, length of transparent membranous band equal to aedeagus ( Fig. 2H, I )................................ P. pilisquamatus Liu & Ma , sp. nov.

4. Pronotum without yellowish white stripe at posterior margin ( Fig. 4F ); metasoma with stout, short setae at apex ( Fig. 4A ); SMC3 strongly narrowed above and forming triangle, petiolate ( Fig. 4H ); longer spur of hind tibia fully five-sixths of basitarsus......................................................................... P. noncarinulatus Liu & Ma , sp. nov.

- Pronotum with yellowish white stripe at posterior margin; metasoma with long setae at apex; SMC3 strongly narrowed above, quadrilateral, not petiolate; longer spur of hind tibia fully half of basitarsus................... P. pedestris ( Smith, 1855)

Figures

FIGURE 1. Paracyphononyx pilisquamatus Liu & Ma, sp. nov., female, holotype. A. Habitus, lateral view. B. Head, frontal view. C. Head, dorsal view. D. Scutellum, metanotum, metapostnotum, and propodeum, dorsal view. E. Fore- and hindwings. F. Metasoma, dorsal view. G. Apical sternum, ventral view. Scale bars = 1 mm.

FIGURE 2. Paracyphononyx pilisquamatus Liu & Ma, sp. nov., male, paratype. A. Habitus, lateral view. B. Head, frontal view. C. Head, dorsal view. D. Antenna, lateral view. E. Scutellum, metanotum, metapostnotum, and propodeum, dorsal view. F. Fore- and hindwings. G. SGP, ventral view. H. Genitalia, dorsal view. I. Genitalia, ventral view. Scale bars = 1 mm.

FIGURE 3. Paracyphononyx noncarinulatus Liu & Ma, sp. nov., female, holotype. A. Habitus, lateral view. B. Head, frontal view. C. Head and mesosoma, lateral view. D. Head, dorsal view. E. Scutellum, metanotum, metapostnotum, and propodeum, dorsal view. F. Fore- and hindwings. G. Apical sternum, ventral view. Scale bars = 1 mm.

FIGURE 4. Paracyphononyx noncarinulatus Liu & Ma, sp. nov., male, paratype. A. Habitus, lateral view. B. Head, frontal view. C. Antenna, lateral view. D. Head and mesosoma, lateral view. E. Head, dorsal view. F. Pronotum, dorsal view. G. Scutellum, metanotum, metapostnotum, and propodeum, dorsal view. H. Fore- and hindwings. Scale bars = 1 mm.