Phanerotomella nigrisoma, He & Achterberg & He & Tang & Chen, 2025
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publication ID |
https://doi.org/10.5852/ejt.2025.1002.2949 |
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publication LSID |
lsid:zoobank.org:pub:28366AFF-A77F-4036-8CF8-ACABEEA5BEAB |
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persistent identifier |
https://treatment.plazi.org/id/9F7587EE-FF67-6846-9475-2D92FB66D4D2 |
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treatment provided by |
Plazi |
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scientific name |
Phanerotomella nigrisoma |
| status |
sp. nov. |
Phanerotomella nigrisoma sp. nov.
urn:lsid:zoobank.org:act:29B385E5-2C78-408C-9144-BEE68771CC89
Diagnosis
Body small, length about 2.7 mm ( Fig. 49 View Fig ); mesopleuron densely and finely reticulate and with distinctly smooth and shiny area posteriorly ( Fig. 50I View Fig ); hind tibia dark brown but basally white and contrasting with yellowish brown hind femur ( Fig. 50F View Fig ); hind coxa ivory ( Fig. 50F View Fig ); face and temple rugulose ( Fig. 50B–C View Fig ).
Etymology
Named after its black mesosoma; ‘ niger ’ is Latin for ‘black’ and ‘soma’ is Greek for ‘body’.
Type material
Holotype
CHINA – Yunnan • ♀; Bazhai, Yudong Reservoir; Jun. 2017; Z. Liu leg.; ZJUH No. 202307931.
Paratypes (3 ♀♀)
CHINA – Yunnan • 3 ♀♀; Puer, Laiyang River National Forest Park; 12 Sep. 2013; J. Zeng leg.; ZJUH Nos 202026436, 202026448, 202026498 .
Description
Female
MEASUREMENTS. Length of body 2.7 mm, fore wing 2.5 mm.
COLOURATION. Black; metasoma ventrally white or ivory; antenna dark brown except 3 rd –6 th segments white and scapus anteriorly yellow; mandible yellowish and with reddish teeth; fore and middle legs yellow except coxa and trochanter white; hind femur brownish yellow, hind tibia dark brown but basally whitish, hind coxa, trochanter and first to fourth tarsal segments white but telotarsus brown; wing veins dark brown to pale brown, pterostigma and parastigma dark brown.
HEAD ( Fig. 50A–C View Fig ). Width 1.3 × median length in anterior view ( Fig. 50B View Fig ) and part of head above eye in lateral view 0.3× height of eye ( Fig. 50C View Fig ); antenna with 26+ segments, widened and shortened medially, gradually narrowing apically, subapical segments non-moniliform and longer than wide, third, fourth, tenth and fifteenth segments 3.5, 3.3, 1.7 and 1.1 × as long as wide in lateral view, respectively ( Fig. 50K View Fig ); area of stemmaticum transversely striate; OOL: OD: POL=18: 5: 5; length of eye 1.0× temple in dorsal view ( Fig. 50A View Fig ); frons transversely rugulose and with median carina; vertex reticulate-rugulose with short setae; temple superficially rugulose; face rugulose and with distinct median ridge, dorsally connected to median carina; clypeus smooth, truncate medio-ventrally; eye width in lateral view as wide as maximum width of temple ( Fig. 50C View Fig ), eye height in anterior view 0.7 × minimum width of face ( Fig. 50B View Fig ); malar space rugulose and 1.1× as long as basal width of mandible; mandible somewhat slender, lower tooth of mandible 0.5× as long as apical tooth ( Fig. 50D View Fig ); face width equal to height of face and clypeus together.
MESOSOMA ( Fig. 50H–I View Fig ). Length 1.6× its width in lateral view ( Fig. 50I View Fig ); side of pronotum superficially rugulose-punctate; mesoscutum regularly and densely reticulate; notauli absent; scutellar sulcus with six crenulae ( Fig. 50H View Fig ); scutellum reticulate and matt; mesopleuron regularly and densely reticulate and with distinctly 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. 50G View Fig ). Fore wing 2.6× as long as its maximum width; second submarginal cell weakly petiolate or sessile; vein m-cu distinctly postfurcal; veins r and SR1 straight; vein 1-SR+M curved; length of 1-R1 as long as pterostigma; vein r issued far beyond middle of pterostigma, 1.1× vein r-m; r: 2-SR: SR1=13: 30: 69; vein 1-CU1 0.3× as long as vein 2-CU1. Hind wing: M+CU: 1-M: 1r-m =23: 29: 12.
LEGS ( Fig. 50F View Fig ). Hind femur 3.6× as long as wide; longest spur of hind tibia 0.5× as long as its basitarsus; hind leg smooth and shiny except fine and superficial punctation; middle tibia without ivory blister.
METASOMA ( Fig. 50E, J View Fig ). Oval in dorsal view ( Fig. 50J View Fig ), 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 0.5× its maximum width; lamella of third tergite not protruding medio-apically and with pair of small and blunt tubercles latero-apically ( Fig. 50E View Fig ).
VARIATION. Second submarginal cell weakly petiolate or sessile; length of fore wing of female 2.5– 2.8 mm.
Male
Unknown.
Host
Unknown.
Distribution
China (Yunnan).
Remarks
Phanerotomella nigrisoma sp. nov. is similar to P. taiwanensis because it has the antenna with a white basal band of the flagellum, the eye in dorsal view 0.9-1.0 × as long as the temple, and the antenna with non-moniliform subapical segments. However, P. nigrisoma can be distinguished from P. taiwanensis by having the antenna widened medially (slender in the latter), the body length about 3.0 mm (4.0 mm in the latter), the face and temple rugulose and matt (punctate and shiny in the latter), the mesopleuron reticulate and with a smooth, shiny area posteriorly (punctate and without a smooth area in the latter), the hind femur yellowish brown and the hind tibia dark brown (black in the latter).
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