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

Phanerotomella tenuipes sp. nov.

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Figs 65–66 View Fig View Fig

Diagnosis

Legs very slender, especially hind leg ( Fig. 66L View Fig ), hind femur about 6.0× as long as wide; body length about 3.5 mm ( Fig. 65 View Fig ); face and temple punctate ( Fig. 66B–C View Fig ); mesopleuron rugulose-punctate and with distinctly smooth and shiny area ( Fig. 66J View Fig ); metasomal carapace 1.9× as long as wide ( Fig. 66K View Fig ); vein m-cu postfurcal ( Fig. 66H View Fig ); second submarginal cell sessile ( Fig. 66H View Fig ).

Etymology

Named after the very slender legs; ‘ tenuis ’ is Latin for ‘thin’ and ‘ pedes ’ is Latin for ‘foot’.

Type material

Holotype CHINA – Hebei • ♀; Zhangjiakou, Xiaowutai Mt., Yangjiaping ; 20 Aug. 2005; H.Y. Zhang leg.; ZJUH No. 200611860 .

Paratypes ( 3 ♀♀)

CHINA – Yunnan • 1 ♀; Lvchun ; 25 Jul. 2003; Z.F. Xu leg.; ZJUH No. 20045215 • 2 ♀♀; Lvchun, Fenshuiling ; 25 Jul. 2003; X. Jiang leg.; ZJUH Nos 20045737 , 20045800 .

Description

Female

MEASUREMENTS. Length of body 3.6 mm, fore wing 3.4 mm.

COLOURATION. Black; metasoma ventrally white or ivory; antenna dark brown; clypeus reddish brown; mandible yellow but basally brownish and with reddish teeth; legs brown except coxae, trochanters and base of femora ivory; wing veins dark brown to pale brown, pterostigma and parastigma dark brown.

HEAD ( Fig. 66A–F View Fig ). Width 1.4× median length in anterior view ( Fig. 66B View Fig ) and part of head above eye in lateral view 0.2× height of eye ( Fig. 66C View Fig ); antenna with 34+ segments, not widened but shortened medially, gradually narrowing apically, third, fourth, tenth and fifteenth segments 4.9, 4.3, 2.7 and 1.7× as long as wide in lateral view, respectively ( Fig. 66D–E View Fig ); area of stemmaticum transversely striate; OOL: OD: POL= 18: 6: 7; eye 0.9 × as long as temple in dorsal view ( Fig. 66A View Fig ); frons transversely rugulose and with median carina; vertex reticulate-rugose with short setae; temple finely punctate and shiny; face rugulose-punctate 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 0.9× maximum width of temple ( Fig. 66C View Fig ), eye height in anterior view 0.7 × minimum width of face ( Fig. 66B View Fig ); malar space finely punctate and 1.2 × as long as basal width of mandible; mandible rather slender, lower tooth of mandible 0.6× as long as apical tooth ( Fig. 66F View Fig ); face width 0.9 × height of face and clypeus together.

MESOSOMA ( Fig. 66I–J View Fig ). Length 1.4× its width in lateral view ( Fig. 66J View Fig ); side of pronotum superficially rugulose-punctate; mesoscutum regularly and densely reticulate; notauli absent; scutellar sulcus with six crenulae ( Fig. 66I View Fig ); scutellum punctate-rugulose; mesopleuron rugulose-punctate 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. 66H View Fig ). Fore wing 2.9× as long as its maximum width; second submarginal cell sessile and vein 3-SR developed; vein m-cu distinctly postfurcal; vein r straight; vein 1-SR+M and SR1 curved; length of 1-R1 1.2× pterostigma; vein r issued far beyond middle of pterostigma, 1.0× vein r-m; r: 2-SR: SR1=17: 43: 76; vein 1-CU1 0.2× as long as vein 2-CU1. Hind wing: M+CU: 1-M: 1r-m =32: 49: 19.

LEGS ( Fig. 66L View Fig ). Hind femur 6.1× as long as wide; longest spur of hind tibia 0.4 × as long as its basitarsus; hind leg smooth and shiny except fine and superficial punctation; hind tibia slender; middle tibia without ivory blister.

METASOMA ( Fig. 66G, K View Fig ). Elliptical in dorsal view ( Fig. 66K View Fig ), carapace 1.9× as long as wide and as long as mesosoma; first to third tergites densely rugulose-reticulate; third tergite 0.8× as long as second tergite, medial length of third tergite 0.6× its maximum width; lamella of third tergite weakly protruding medio-apically and with pair of large and pointed tubercles latero-apically ( Fig. 66G View Fig ).

VARIATION. Second submarginal cell sessile but vein 3-SR not developed; length of fore wing of female 2.9–3.4 mm.

Male

Unknown.

Host

Unknown.

Distribution

China ( Hebei, Yunnan).

Remarks

Phanerotomella tenuipes sp. nov. is easily distinguished from similar species by having the hind femur 6.0× as long as wide, the metasoma 1.9× as long as wide, the antenna slender, the lamella of the third metasomal tergite protruding medio-apically, vein m-cu postfurcal, and the body length 3.5 mm.