Zimankos cambodianus ( Móczár, 1976 )

Wang, Chunhong, He, Junhua & Chen, Xuexin, 2024, Revision of subfamily Mesitiinae (Hymenoptera, Bethylidae) from China, European Journal of Taxonomy 960 (1), pp. 1-61 : 50-53

Zimankos cambodianus ( Móczár, 1976)

Fig. 17

Sulcomesitius cambodianus Móczár, 1976: 283–284 .

Sulcomesitius rectus Xu, He & Terayama, 2003: 329–330 . Syn. nov.

Zimankos cambodianus – Azevedo et al. 2018: 207.

Material examined (8 ♂♂)

CHINA – Henan • 1 ♂; Baotianman ; 13–15 Jul. 1998; Xuexin Chen leg.; ZJUH 991803 . – Zhejiang • 1 ♂; paratype of Sulcomesitius rectus ; Qingyuan ; 26–27 Jul. 1985; Quancong Wu leg.; ZJUH 851898 • 1 ♂; Tianmu Mountain ; 27 Jul. 1988; Ying Qian leg.; ZJUH 940245 • 1 ♂; Songyang ; 27 Jun. 1994; Hanlin Chen leg.; ZJUH 954190 • 1 ♂; Xitianmu Mountain ; 28 Jul. 2003; Xiaoxia Yu leg.; ZJUH 20039255 . – Fujian • 1 ♂; Wuyi Mountain ; 20 Jul. 1985; Naiquan Lin leg.; ZJUH 968094 . – Guangdong • 1 ♂; Xinfeng, Yunjin Mountain ; 19 Jun. 2002; Zaifu Xu leg.; ZJUH 20029190 . – Guangxi • 1 ♂; holotype of Sulcomesitius rectus ; Liuzhou ; 9 Jun. 1982; Junhua He leg.; ZJUH 822502 .

Re-description

Male

MEASUREMENTS (n = 8). LH 0.93–1.0 × WH; WF 1.36–1.48 × LE; LE 0.41–0.45 × LH; LE 1.36–1.75 × DEV; POL 1.58–1.97× AOL; OOL 0.82–1.03 × WOT; DPV 0.63–1.72 × DAO; malar space 1.52–2.08× distance between posterior ocelli and vertex crest; median length of dorsal pronotal area 0.4–0.49 × width along posterior pronotal margin; median length of dorsal surface of MPC 0.96–1.05 × its half-width; length of PPP 0.29–0.33× median length of dorsal surface of MPC; length of posterior branches of hypopygium 0.42–0.5× length of hypopygium.

COLOURATION. Body black. Mandible yellowish brown, teeth reddish brown; maxillary and labial palpi yellowish brown. Antenna brown, darker apically. Fore wing hyaline, yellowish brown; veins yellowish brown, pterostigma light brown. Legs brown, coxae dark brown. T 1 dark brown, T 2 black with posterior and lateral margin brown; T 3–4 brown.

PUBESCENCE. Body with short setae. Maxillary and labial palpi with dense, short setae. Antenna with short, suberect setae, 0.47× width of flagellomere II ( Fig. 17C ). Eye with sparse, short setae, nearly 5.0× diameter of an ommatidium. Wings with short, dense brown setae. Setae of metasoma longer than setae of head and mesosoma, T 1 nearly glabrous, T 2 with basal triangular area glabrous.

HEAD. Shorter than wide, LH 0.96 × WH. Clypeus trilobite, medio-clypeal lobe with apical margin acute medially; medio-clypeal carina not extending into frons, arched in lateral view. Antenna slender. Frons coriaceous and densely foveolate, median frontal line absent ( Fig. 17B ); WF 1.48 × LE. Contour of eye protruding in antero-dorsal view; LE 0.43 × LH, LE 1.59 × DEV. Anterior ocellus partly anterior to imaginary top line of eyes; POL 1.58 ×AOL, OOL 0.95 × WOT, DPV 1.38 × DAO. Vertex coriaceous and densely foveolate, sides of head behind eyes nearly parallel, vertex crest protruding. Gena coriaceous, densely foveolate, with shallow foveolae ventrally. Occipital carina complete. Medioccipito-genal suture present.

MESOSOMA. Dorsal pronotal area coriaceous and densely foveolate, median length 0.47 × width along posterior pronotal margin, anterolateral corner projected; median pronotal sulcus foveolate ( Fig. 17D ); lateral pronotal area obliquely striate; cervical pronotal area coarse. Mesoscutum elevated, coriaceous, with dense punctures; median mesonotal sulcus fovea-like, present near posterior margin ( Fig. 17E ); notauli complete and converging posteriorly, parapsidal signum shallow and absent near anterior margin. Mesoscutellum slightly elevated, coriaceous and foveolate; mesoscutum-mesoscutellar sulcus present, laterally dilated. Median length of dorsal surface of MPC nearly equal to its half-width; metapostnotum strongly areolate, metapostnotal median carina complete, metapostnotal-propodeal carina complete and converging posteriorly; dorsal propodeal area transversely striate; paraspiracular and lateral marginal carinae of MPC complete ( Fig. 17F ); length of PPP 0.29 × median length of dorsal surface of MPC; transverse posterior carina of MPC complete; propodeal declivity areolate, median and lateral carinae complete; anterior metapleural area shiny, weakly striate; lateral surface of MPC areolate, submarginal and posterior carinae present. Propleuron coriaceous, foveolate near procoxa. Mesopleuron coriaceous and densely foveolate; subalar impression weak; posterior oblique sulcus of mesopleuron present and foveolate; postepicnemial sulcus present; ventral surface of mesopleuron coriaceous and shallowly foveolate; anterior mesofurcal pit present and deep.

WINGS. Fore wing with 2r-rs&Rs 2 v slightly curved apically, 1.12 × length of Sc+ R 2 v; posterior margin of pterostigma protruding, prestigma absent ( Fig. 17H ); Cu 2 v present as light yellowish-brown trace. Hind wing with four distal hamuli.

METASOMA. Metasomal terga shiny, with punctures; T 1 with shiny sparse punctures, medio-longitudinal sulcus present at basal one-third; T 2 with punctures ( Fig. 17G ). Metasomal sterna shiny, with variably sized punctures; S1 irregularly striate, metapostnotal median carina weak; S2 with dense, variably sized punctures. Hypopygium longer than wide; lateral and anterior margin of basal part of hypopygium distinctly incurved ( Fig. 17I ); length of posterior branches 0.48 × length of hypopygium, distinctly narrower than median notch; apical margin of posterior branches and bottom of posterior median notch with long setae.

MALE GENITALIA. Harpe bilobate, dorsal harpe filamentary ( Fig. 17J ), ventral harpe finger-like, with long setae ( Fig. 17K ). Cuspis with apical margin incurved; digitus bent and papillate apically, with setae basally; aedeagus bottle-shaped ( Fig. 17J ).

Female

Unknown.

Distribution

China (Henan, Zhejiang, Fujian, Guangdong, Guangxi) ( Fig. 20 ), Cambodia, Laos.

Remarks

The specimens (numbered ZJUH 822502, 851898) belonging to the type series of Sulcomesitius rectus Xu, He & Terayama, 2003 , the specimen numbered 954190 being identified as S. vechti Móczár, 1979 and the specimens numbered 991803 and 940245 as S. laoensis Móczár, 1976 were included in the genus Sulcomesitius by Xu et al. (2003) because of the obtuse anterior corners of the clypeus laterally, the mesoscutum with median mesonotal sulcus being well developed and the PPP long and with a sharp apex in dorsal view, whereas the shape of the hypopygium, which is the main character for the generic identification of the males, was not examined. After re-examination of all the specimens mentioned above, we transferred them to the species Zimankos cambodianus under the genus Zimankos because all of them have the hypopygium with the posterior branches filamentary (lobose in Sulcomesitius ) ( Fig. 17I ), the dorsal harpe of the genitalia is filamentary and distinctly narrower than the ventral harpe (S-shaped or 8-shaped, at least as wide as the ventral harpe in Sulcomesitius ) and the dorsal pronotal area has the anterolateral corner projected (weakly projected in Sulcomesitius ).

Figures

Fig. 17. Zimankos cambodianus (Móczár, 1976), ♂ (ZJUH 940245). A. Habitus, lateral view. B. Head, antero-dorsal view. C. Antenna. D. Pronotum, dorsal view. E. Mesonotum, dorsal view. F. MPC, dorsal view. G. T2, dorsal view. H. Fore wing. I. Hypopygium. J. Genitalia, dorsal view. K. Genitalia, ventral view. Scale bars: 0.20 mm.

Fig. 20. Distribution map of species of Mestiinae from China.