Jucancistrocerus (Eremodynerus) chotanensis ( Blüthgen, 1942 )

Li, Ting-Jing, Bai, Yue & Chen, Bin, 2022, A revision of the genus Jucancistrocerus Blüthgen, 1938 from China, with review of three related genera (Hymenoptera: Vespidae: Eumeninae), Zootaxa 5105 (3), pp. 401-420 : 404

Jucancistrocerus (Eremodynerus) chotanensis ( Blüthgen, 1942)

( Figs 10–16 )

Eremodynerus chotanensis Blüthgen, 1942: 317 ; Giordani Soika, 1970: 133; van der Vecht and Fischer, 1972: 76; Tan et al., 2018: 142.

Material examined. 1♀, China, Xinjiang, Bayinguoleng Mongolian Autonomous Prefecture, Ruoqiang County, Lop Nor , Hongliujing , 30.V.2010, Zhaohui Luo .

Notes. This species J. (E.) chotanensis Blüthgen, 1942 was firstly found and described based on one male specimen from China, Xinjiang, Chotan. Before this study, no other specimens have been added to the record. In our collections, one female specimen was collected from Xinjiang, Lop Nor, Hongliujing which is not far from the collection range where the type specimen was collected. The female ( Figs 10–16 ) is very similar to the male, which was recorded by Blüthgen (1942). Meanwhile, the species is very similar to the above species J. (E.) atrofasciatus with almost the same color pattern ( Figs 1–16 ). They can mainly be separated from each other by the following character combination: body of J. (E.) chotanensis ( Figs 10–16 ) with sculpture distinctly sparser ( Figs 1–9 ), its propodeal margin between dorsal and lateral surfaces without or with indistinct tooth-like protuberance ( Fig. 14 ), clypeal emargination relatively shallower, and with one big subapical spot in middle of the mesoscutum.

Female (first description): Body length 7.2 mm; black, with great yellow markings ( Figs 10–16 ); the following parts generally yellow: almost whole frons except the black spot above antenna, clypeus, antenna except apical and dorsal surfaces, gena, pronotum, a big subapical longitudinal spot of mesoscutum, scutellum and metanotum except anterior margins, propodeum except middle of posterior surface, tegula, parategula, legs except hind coxa to femoral base, and metasomal segments except black bands of T 1– T 2 ( T 1 apically with an unbroken black band and T 2 medially with an unbroken black band). Head moderately punctate (sparser than J. (E.) atrofasciatus ); clypeus wider than long (1.30×), and slightly emarginated at apex ( Fig 11 ). Mesosoma a little coarser than head ( Fig. 10 ); transverse pronotal carina strongly raised, somewhat protruding in the middle ( Fig. 12 ); propodeal margin between dorsal and lateral surfaces without or with indistinct tooth-like protuberance ( Fig. 14 ); metasoma almost as coarse as head, width of T 1 1.87× length and narrower than (0.82×) T 2.

Distribution. China (Xinjiang).

Figures

FIGURES 10–16. Jucancistrocerus (Eremodynerus) chotanensis, ♀. 10. Habitus, dorsal view; 11. Head, frontal view; 12. Vertex and pronotal carina, frontal view; 13. Tegula, dorsal view; 14. Propodeum, dorsal view; 15. Metasoma, dorsal view; 16. Metasoma, ventral view.

FIGURES 1–9. Jucancistrocerus (Eremodynerus) atrofasciatus, 1, 3, 5–6, 8–9, ♀; 2, 4, 7, ♂. 1–2. Habitus, dorsal view; 3–4. Head, frontal view; 5. Propodeum, dorsal view; 6. Vertex and pronotal carina, frontal view; 7. Antenna; 8. Metasoma, dorsal view; 9. Metasoma, ventral view.