Phanerotomella xui, He & Achterberg & He & Tang & Chen, 2025

He, Jia-Yue, Achterberg, Cornelis Van, He, Jun-Hua, Tang, Pu & Chen, Xue-Xin, 2025, The genus Phanerotomella Szépligeti (Insecta, Hymenoptera, Braconidae, Cheloninae) from China, with descriptions of sixteen new species, European Journal of Taxonomy 1002, pp. 1-130 : 110-113

Phanerotomella xui sp. nov.

urn:lsid:zoobank.org:act:580E809B-8610-4D26-BD67-656CE993DD98

Figs 73–74

Diagnosis

Vein SR1 of fore wing 4.0× as long as vein r ( Fig. 74G ); length of fore wing 3.6 mm ( Fig. 74G ); border of metasomal carapace distinctly curved ( Fig. 74J ); metasoma blackish brown except lateral borders of first tergite yellow ( Fig. 74J ).

Etymology

Named after the collector of the holotype, the recently deceased hymenopterist Prof. Zai-fu Xu.

Type material

Holotype

CHINA – Guangdong • ♀; Zhaoqing, Dinghu Mt. ; 11–12Aug. 2005; Z.F. Xu leg.; ZJUH No. 200610114.

Paratypes (2 ♀♀, 19 ♂♂)

CHINA – Guangdong • 4 ♂♂; same data as for holotype; ZJUH Nos 200610111, 200610115, 200610116, 200610118 • 1 ♀; same data as for preceding; ZJUH No. 200610110 • 1 ♂; Ruyuan, Nanling ; 23 Jul. 2003; Z.F. Xu leg.; ZJUH No. 20047717 • 1 ♂; Shaoguan, Nanling ; 9–18 Jul. 2005; Y.L. Cai leg.; ZJUH No. 200609622 . – Guizhou • 1 ♀; Leigong Mt., Xiaodan River ; 4–5 Jun. 2005; J.X. Liu leg.; ZJUH No. 20059379 . – Guangxi • 1 ♂; Tianling, Langping ; 30 May 1982; J.H. He leg.; ZJUH No. 824581 . – Fujian • 2 ♂♂; Wuyi Mt., Huanggang ; 16 Jul. 1994; X.X. Chen leg.; ZJUH Nos 948714, 948716 • 1 ♂; Guadun ; 23 Jun. 1980; J.H. Chen leg.; ZJUH No. 881311 • 1 ♂; Wuyi Mt., Guadun ; 15 Jul. 1994; S.F. Ye leg.; ZJUH No. 948722 • 1 ♂; Tongmu ; 15 Jul. 1981; J.C. Huang leg.; ZJUH No. 907927 • 1 ♂; Xianfengling ; Jun. 1980; X.F. Zhao leg.; ZJUH No. 880756 • 1 ♂; Xianfengling ; 30 Jun. 1980; T. F. Xu leg.; ZJUH No. 907925 • 1 ♂; Wuyi Mt., Xianfengling ; 20 Jul. 1989; J.S. Wang leg.; ZJUH No. 20005790 • 1 ♂; Wuyi Mt., Xianfengling ; 30 Aug. 1989; J.S. Wang leg.; ZJUH No. 20005799 • 1 ♂; Guadang ; Jun. 1980; J.C. Huang leg.; ZJUH No. 20003796 . – Zhejiang • 1 ♂; Taishun, Wuyanling ; 1–2 Aug. 2005; Y.P. Wang leg.; Malaise trap; ZJUH No. 200604958 • 1 ♂; Gutian Mt. ; 18 Jul. 1992; X.X. Chen leg.; ZJUH No. 923309 .

Description

Female

MEASUREMENTS. Length of body 4.0 mm, fore wing 3.6 mm.

COLOURATION. Black; first metasomal tergite yellow except with dark brown patch medially; metasoma ventrally white or ivory; antenna dark brown except scapus and pedicellus whitish; clypeus reddish brown; mandible yellowish and with reddish teeth; fore and middle legs white except tibia apical half and tarsus brown; hind leg dark brown except coxa, trochanter, femur basally, tibia basally and first to fourth tarsal segments white; pterostigma dark brown, parastigma yellowish brown, wing veins dark brown to yellowish brown.

HEAD ( Fig. 74A–C, K–L ). Width 1.3 × median length in anterior view ( Fig. 74B ) and part of head above eye in lateral view 0.3× height of eye ( Fig. 74C ); antenna with 44 segments and 1.5× as long as fore wing, hardly widened and distinctly shortened medially, medial segments about as long as wide, gradually narrowing apically, subapical segments non-moniliform and longer than wide, third, fourth, tenth, fifteenth and penultimate segments 5.1, 4.7, 1.8, 1.0 and 3.5× as long as wide in lateral view, respectively ( Fig. 74K–L ); area of stemmaticum transversely striate; OOL: OD:POL= 26:8: 7; eye 0.7 × as long as temple in dorsal view ( Fig. 74A ); frons transversely rugulose and with median carina; vertex rugulose-punctate with short setae; temple punctate and shiny; face punctate-rugulose and with distinct median ridge, dorsally connected to median carina; clypeus finely punctate and with shiny interspaces, truncate medio-ventrally; eye width in lateral view 0.7 × maximum width of temple ( Fig. 74C ), eye height in anterior view 0.8 × minimum width of face ( Fig. 74B ); malar space finely punctate and 1.3× as long as basal width of mandible; mandible somewhat robust, lower tooth of mandible 0.6 × as long as apical tooth ( Fig. 74D ); face width 0.9 × height of face and clypeus together.

MESOSOMA ( Fig. 74H–I ). Length 1.4× its width in lateral view ( Fig. 74I ); side of pronotum superficially punctate-rugulose and shiny; mesoscutum regularly and densely reticulate except medio-posteriorly slightly coarsened; notauli absent; scutellar sulcus with five crenulae ( Fig. 74H ); scutellum rugulose-punctate; mesopleuron coarsely reticulate and without smooth and shiny area posteriorly, precoxal sulcus absent; propodeum reticulate, without median carina, with irregular transverse carina connected to four weak and blunt tubercles laterally.

WINGS ( Fig. 74G ). Fore wing 2.9× as long as its maximum width; second submarginal cell sessile; vein m-cu distinctly postfurcal; veins r and 1-SR+M straight; vein SR1 curved; length of 1-R1 0.9× pterostigma; vein r issued far beyond middle of pterostigma, 1.0× vein r-m; r: 2-SR: SR1 =19: 50: 75; vein 1-CU1 0.2× as long as vein 2-CU1. Hind wing: M+CU:1-M:1r-m =6: 10: 5.

LEGS ( Fig. 74F ). Hind femur 3.9 × as long as wide; longest spur of hind tibia 0.4 × its basitarsus; hind leg smooth and shiny except fine and superficial punctation; middle tibia without ivory blister.

METASOMA ( Fig. 74E, J ). Oval in dorsal view ( Fig. 74J ), carapace 1.7× as long as wide and 1.1× as long as mesosoma; first to third tergites densely reticulate-rugulose; third tergite 1.1 × as long as second tergite, medial length of third tergite 0.6× its maximum width; lamella of third tergite not protruding medio-apically and with pair of blunt tubercles latero-apically ( Fig. 74E ).

VARIATION. Second submarginal cell sessile or weakly petiolate; length of fore wing of female 3.6– 3.7 mm; first metasomal tergite yellow and medially with dark brown patch widened or absent.

Male

Very similar to female, but antenna slender medially, hind femur yellow, first metasomal tergite dark brown or yellow with dark brown patch widened.

Host

Unknown.

Distribution

China (Fujian, Guangdong, Guangxi, Guizhou, Zhejiang).

Remarks

Phanerotomella xui sp. nov. is similar to P. rugifera sp. nov. because the scapus and pedicellus are ivory and the flagellum brown, the temple in dorsal view slightly narrowing behind the eye, and the mesopleuron reticulate. However, P. xui can be distinguished from P. rugifera by the eye in dorsal view being 0.7× as long as the temple (1.0× in the latter), vein SR1 4.0× as long as vein r (5.0 × in the latter), the length of the fore wing 3.6 mm (2.8–3.1 mm in the latter), and the border of the metasomal carapace distinctly curved (less curved in the latter).

Figures

Fig. 73. Phanerotomella xui sp. nov., holotype, ♀ (ZJUH No. 200610114), habitus, lateral view. Scale bar: 1.0 mm.

Fig. 74. Phanerotomella xui sp. nov. A, C, E–F, H–L. Holotype, ♀ (ZJUH No. 200610114). B, D, G. Paratype, ♀ (ZJUH No. 20059379). A. Head, dorsal view. B. Head, anterior view. C. Head, lateral view. D. Mandible, ventral view. E. Lamella, posterior view. F. Hind leg. G. Fore and hind wing. H. Mesosoma, dorsal view. I. Mesosoma, lateral view. J. Metasoma, dorsal view. K. Antenna, lateral view. L. Apical antenna, lateral view. Scale bars: 0.1 mm.