Phanerotomella nitidifascia Fang, He & van Achterberg 2025, sp. nov.

Phanerotomella nitidifascia Fang, He & van Achterberg sp. nov. Materials Type status: Holotype. Occurrence: catalogNumber: ZJUH No. 202401006; recordedBy: Manman Wang leg.; sex: female; lifeStage: adult; occurrenceID: 559FD881-28B5-5405-B74A-F9642AC15741; Location: country: China; stateProvince: Yunnan; county: Yingjiang; Event: verbatimEventDate: 19 May 2009; Record Level: institutionCode: ZJUH Type status: Paratype. Occurrence: catalogNumber: ZJUH No. 202401036; recordedBy: Jie Zeng leg.; sex: male; lifeStage: adult; occurrenceID: 5F52E01C-25DF-514B-ABC4-DFC5CE9B3333; Location: country: China; stateProvince: Yunnan; county: Yingjiang; Event: eventDate: 21 May 2009; Record Level: institutionCode: ZJUH; basisOfRecord: PreservedSpecimen Description Holotype. ♀ (Fig. 3). Length of body 2.8 mm, fore-wing 2.5 mm. Head Width 1.3 × median length in anterior view (Fig. 4) and part of head above eye in lateral view 0.3 × height of eye (Fig. 5); antenna with 28 segments, but apical segments missing, slightly widened and shortened medially, gradually narrowed apically, subapical segments non-moniliform and longer than wide, third, fourth, tenth and fifteenth segments 3.8, 3.5, 1.7 and 1.3 × longer than wide in lateral view, respectively (Fig. 6); area of stemmaticum transversely striate; OOL: OD: POL = 4: 1: 1; length of eye 1.5 × temple in dorsal view (Fig. 7); frons transversely rugulose and with median carina; vertex rugulose-punctate with short setae; temple superficially rugulose and somewhat shiny; face rugulose and with distinct median ridge, dorsally connecting to median carina; clypeus smooth and shiny, except for finely punctation, truncate medio-ventrally; eye width in lateral view 1.3 × maximum width of temple (Fig. 5), eye height in anterior view 0.7 × minimum width of face (Fig. 4); malar space rugulose and 1.2 × as basal width of mandible; mandible rather slender, lower tooth of mandible 0.5 × as long as apical tooth (Fig. 8); face width equal to height of face and clypeus together. Mesosoma Length 1.6 × its width in lateral view; side of pronotum mainly superficially and finely punctate, except anteriorly rugulose; mesoscutum densely reticulate; notauli absent; scutellar sulcus with six short crenulae; scutellum rugulose; mesopleuron punctate-reticulate and with smooth and shiny area posteriorly, precoxal sulcus absent; propodeum reticulate, without median carina, with irregular transverse carina connected to four weak and blunt lateral tubercles (Fig. 9, Fig. 10). Wings Fore-wing 2.6 × longer than its maximum width; second submarginal cell not petiolate; vein m-cu weakly antefurcal; vein r and 1 - SR + M straight; vein SR 1 slightly curved; length of 1 - R 1 1.0 × pterostigma; vein r issued far beyond middle of pterostigma, 0.9 × vein r-m; r: 2 - SR: SR 1 = 13: 35: 70; vein 1 - CU 1 0.4 × as long as vein 2 - CU 1. Hind-wing: M + CU: 1 - M: 1 r-m = 23: 31: 14 (Fig. 11). Legs Hind femur 3.8 × as long as wide; longest spur of hind tibia 0.5 × its basitarsus; hind leg smooth and shiny, except fine and superficial punctation; middle tibia without ivory blister (Fig. 12). Metasoma Oval in dorsal view (Fig. 13), carapace 1.8 × as long as wide and as long as mesosoma; first to third tergites densely reticulate-rugose; third tergite 0.9 × 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 distinct and blunt tubercles latero-apically (Fig. 14). Color Black; head yellowish-brown, but black around occipital carina; antenna dark brown, except for yellow scapus and pedicellus; mandible yellowish and with reddish teeth; fore- and middle legs yellow; hind leg dark brown, except coxa, trochanter and base of tibia ivory, tarsus yellowish-brown; pterostigma and parastigma brown, wing veins pale brown. Male Very similar to female, but antenna slender medially and second submarginal cell weakly petiolate. Antenna with 33 segments. Diagnosis Mesopleuron punctate-reticulate and with distinctly smooth area posteriorly; lamella of third metasomal tergite more protruding latero-apically; temple superficially rugulose and somewhat shiny; posterior ocellus comparatively small; vein m-cu of fore-wing antefurcal; scapus and pedicellus in lateral view yellow and distinctly contrasting with dark brown flagellum. Phanerotomella nitidifascia sp. nov. is similar to P. exilicornis He et al., 2025, because of similar colouration of the body, hind femur and antenna and vein m-cu antefurcal. However, P. nitidifascia sp. nov. can easily be distinguished from P. exilicornis by having mesopleuron with a smooth and shiny area posteriorly (without a smooth area in the latter), lamella of third metasomal tergite distinctly protruding latero-apically (less protruding latero-apically in the latter), temple superficially rugulose and somewhat shiny (distinctly rugulose and matt in the latter) and posterior ocellus comparatively small (posterior ocellus large and round in the latter). Etymology Named after its mesopleuron with distinctly smooth and shiny area posteriorly; “ nitidus ” is Latin for smooth and shiny; “ fascia ” is Latin for strip. Distribution China (Yunnan) Biology Unknown.