Pristocera, Klug, 1808

Fadeev, Kirill I., 2021, Review of the genera Pristocera Klug and Pristepyris Kieffer (Hymenoptera Bethylidae, Pristocerinae) of Russia and adjacent territories, Zootaxa 4965 (3), pp. 461-482 : 479-480

Key to species of the genera Pristocera and Pristepyris European part of Russia and adjacent territories

1. Males (♂) winged; body mainly black ( Figs 1A , 2 , 4A , 5 , 7A ).................................................. 2

- Females (♀) wingless; body mainly yellow or reddish ( Figs 1B , 3 , 4B , 6 , 7B , 8 )................................... 4

2(1). Metasomal segments entirely black or dark brown ( Fig. 7A ); hypopygium not divided into two lobes, subtriangular ( Fig. 7C ); distal part of harpe slender, slightly curved; active in July – October; body length 7.0–8.0 mm............................................................................................ Pristepyris masii ( Giordani Soika, 1933)

- Metasomal segments I–III reddish, remainder segments brown ( Figs 1A , 2G , 4A , 5K ); hypopygium deeply divided into two lobes ( Figs 1D , 4C ); distal part of harpe wide and flattened; active from February to June, usually in spring.............. 3

3(2). Median carina of clypeus high, subtriangular in lateral view with its outer corner almost right and only apex weakly rounded; transverse pronotal carina and posterior pronotal sulcus absent ( Figs 2C, F ); dorsal pronotal area with transverse striation in narrow anterior part ( Figs 1A , 2F ); forewing hyaline, not darkened ( Figs 1A , 2K ); metapectal-propodeal disc with median carina developed posteriorly, forming narrow elongated cell ( Figs 1A , 2I ); harpelong and twice sinuate, without tooth on inner side of end; aedeagus long, conical, slender, its apical lobe long and deeply divided up to half its length; active in early spring; body length 8.0–12.0 mm..................................................... Pristocera depressa ( Fabricius, 1804)

- Median carina of clypeus low ( Figs 5A, C ), arched in lateral view; transverse pronotal carina and posterior pronotal sulcus well developed ( Figs 5C–E ).; dorsal pronotal area without transverse striation ( Figs 4A , 5D ); forewing faintly darkened from pterostigma to wing apex ( Figs 4A , 5M ); metapectal-propodeal disc without median carina ( Figs 4A , 5D ); parameres (harpe) short, C-shaped and with low blunt tooth on inner side of end; aedeagus short, subconical, thick, its apical lobe divided up to quarter its length, rounded; active from late spring to half of summer; body length 10.0–14.0 mm................................................................................................... Pristocera morawitzi sp. nov.

4(1). Median lobe of clypeus with two short projections and central notch in dorsal view ( Fig. 8A, B ); active in July–August (second half of summer); body length 4.0–6.0 mm................................. Pristepyris masii ( Giordani Soika, 1933)

- Median lobe of clypeus with three or four projections and without central notch in dorsal view ( Figs 3A , 6A ); active from February to July (usually in spring to first half of summer); body length 7.0–10.0 mm............................... 5

5(4). Mandible with three teeth ( Fig. 3B ); median lobe of clypeus with four projections in dorsal view ( Fig. 3A ); head with convex dorsal and ventral surfaces in lateral view, narrowed anteriorly ( Fig. 3E ); head and dorsal pronotal area slightly longer than its width, with sparse punctation ( Figs 1B ; 3A, C ); metapectal-propodeal complex polished dorsally ( Figs 1B , 3C ), with single punctures along lateral sides ( Fig. 3C ); active from February to July, commonly in early spring, April – May.................................................................................... Pristocera depressa ( Fabricius,1804)

- Mandible with four teeth ( Fig. 6B ); median lobe of clypeus with three projections in dorsal view ( Fig. 6A ); head with flat and parallel-sided dorsal and ventral surfaces in lateral view ( Fig. 6E ); head and dorsal pronotal area distinctly longer than width, with dense punctation ( Figs 4B ; 6 A–C ); metapectal-propodeal complex sparsely punctate dorsally with dense punctures along their lateral sides ( Figs 4B , 6C ); active in May – June.................................. Pristocera morawitzi sp. nov.

Figures

FIGURE 1. Pristocera depressa (Fabricius, 1804). A. Male, habitus, dorsal view. B. Female, habitus, dorsal view. C. Metasomal petiole of male, ventral view. D. Hypopygium of male, outer view. E. Male genitalia, dorsal view. F. Male genitalia, ventral view. Scale bars: 1.0 mm for A and B; 0.5 mm for C–F.

FIGURE 2. Pristocera depressa (Fabricius, 1804), male, lectotype. A. Head, dorsal view. B. Head, front view. C. Head, lateral view. D. Mesosoma, ventral view. E. Mesosoma, lateral view. F. Mesosoma, dorsal view. G. Metasoma, dorsal view. H. Metasoma ventral view. I. Metapectal-propodeal complex, dorsal view. J. Labels. K. Forewing. Scale bars: 1.0 mm, except 0.5 mm for B.

FIGURE 3. Pristocera depressa (Fabricius, 1804), female. A. Head, dorsal view. B. Head and mandible, front view. C. Mesosoma, dorsal view. D. Mesosoma, lateral view. E. Head, lateral view. F. Head, ventral view. G. Mesotibia. H. Metasomal petiole, ventral view Scale bar: 0.5 mm.

FIGURE 4. Pristocera morawitzi sp.nov. A. Holotype, habitus of male, dorsal view. B. Paratype, habitus of female, dorsal view. C. Hypopygium of male (paratype), outer view. D. Male genitalia (paratype), dorsal view. E. Male genitalia (paratype), ventral view. Scale bars: 1.0 mm for A and B, except 0.5 mm for C–E.

FIGURE 5. Pristocera morawitzi sp. nov., holotype, male.A. Head, dorsal view. B. Head and mandible, frontal view. C. Head and pronotum, lateral view. D. Mesosoma, dorsal view. E. Mesosoma, lateral view. F. Mesosoma, ventral view. G. Head and propleuron, ventral view. H. Metasomal petiole, dorsal view. I. Metasomal petiole, ventral view. J. Tarsus of proleg and claws. K. Metasoma, dorsal view. L. Distal half of metasoma, ventral view. M. Wings. Scale bars: 1.0 mm, 0.5 mm for H–J.

FIGURE 6. Pristocera morawitzi sp. nov., paratype, female.A. Head, dorsal view. B. Head and mandible, front view. C. Mesosoma, dorsal view. D. Mesosoma, lateral view. E. Head, lateral view. F. Head, ventral view. G. Mesotibia. H. Mesosoma, ventral view. I. Metasomal petiole, ventral view. Scale bars: 0.5 mm, except 1.0 mm for C, D.

FIGURE 7. Pristepyris masii (Giordani Soika, 1933). A. Male, habitus, dorsal view. B. Female, habitus, dorsal view. C. Hypopygium of male, outer view. D. Male genitalia, dorsal view. E. Male genitalia, ventral view. Scale bars: 1.0 mm for A and B; 0.5 mm for C, D, E.

FIGURE 8. Pristepyris masii (Giordani Soika, 1933), female. A. Head, dorsal view. B. Head and mandible, front view. C. Mesosoma, dorsal view. D. Mesosoma, lateral view. E. Head, lateral view F. Head, lateral view. G. Mesotibia. H. Metasomal petiole, ventral view. Scale bars: 0.5 mm.