Phanerotoma thoracica, Luo & Achterberg & He & Tang & Chen, 2025

Phanerotoma thoracica sp. nov.

urn:lsid:zoobank.org:act:

Fig. 33 View Fig

Diagnosis

Vein 2-SR of fore wing anteriorly diverging from posterior side of pterostigma, gap comparatively wide and distinctly narrowed anteriorly ( Fig. 33F View Fig ); vein 1-CU1 of fore wing 0.4 × as long as vein 2-CU1; face largely granulate-rugose and transversely rugose medio-posteriorly, with median bump ( Fig. 33D View Fig ); lower tooth of mandible minute ( Fig. 33K View Fig ).

Differential diagnosis

Very similar to P. bilinea Lyle, 1924 , but this species has the lower tooth of the mandible medium-sized ( van Achterberg 1990: fig. 269).

Etymology

Named after the yellow mesosoma, from the Latin ‘ thorax ’ for ‘breast’.

Type material

Holotype CHINA – Zhejiang • ♀; Tianmu Mt. ; 20 Jul. 1998; Mingshui Zhao leg.; ZJUH No. 20000912 .

Paratypes ( 28 ♀♀)

CHINA – Zhejiang • 1 ♀; same data as for holotype; 1 Aug. 1998; Mingshui Zhao leg.; ZJUH No. 20002959 • 1 ♀; same data as for preceding; 14 Nov. 1998; Mingshui Zhao leg.; ZJUH No. 20003133 • 5 ♀♀; Anji, Longwang Mt. ; 20 Sep. 2004; Xuexin Chen leg.; ZJUH Nos 20050002 , 20050006 , 20050010 , 20050012 , 20050023 • 2 ♀♀; same data as for preceding; Belokobylskij leg.; ZJUH Nos 20050021 , 20050030 • 1 ♀; Linan, Qingliangfeng ; 7 Aug. 2005; Hongying Zhang leg.; ZJUH No. 200603195 • 2 ♀♀; Taishun, Wuyanling ; 31 Jul. 2005; Shujun Wei leg.; ZJUH Nos 200605151 , 200605153 • 1 ♀; Anji, Longwang Mt. ; 20 Sep. 2004; ZJUH No. 20050016 . – Xizang Zizhiqu • 1 ♀; Linzhi, Bomigang Village ; 8 Aug. 2019; Pu Tang leg.; ZJUH No. 202300029 . – Guizhou • 2 ♀♀; Du Mt. ; 6 May 1980; Shengzhen Zhou leg.; ZJUH Nos 860586 , 860176 • 1 ♀; Chishui, Gangou ; 29 May 2000; Yun Ma leg.; ZJUH No. 200102959 • 1 ♀; same data as for preceding; [on] Alsophila spinulosa ; 21 Sep. 2000; Yun Ma leg.; ZJUH No. 200103256 . – Shaanxi • 1 ♀; Luonan, Shangluo ; 34°82′ N, 110°19′ E, elev. 1006 m; 9 Jul.–9 Sep. 2017; Jiangli Tan and Qingqing Tan leg.; ZJUH GoogleMaps . – Henan • 1 ♀; Jigong Mt. ; 11 Jul. 1997; Xuexin Chen leg.; ZJUH No. 973710 • 1 ♀; Jigong Mt. ; 11 Jul. 1997; Xuexin Chen leg.; ZJUH No. 973934 • 2 ♀♀; Fangxian ; 23 Aug. 1982; Junhua He leg.; ZJUH Nos 82322 , 826976 • 1 ♀; Zhu Mt. ; 28 Aug. 1982; Junhua He leg.; ZJUH No. 824807 . – Hebei • 1 ♀; Wudang Mt. ; 17 Jul. 1997; Yuzhou Du leg.; ZJUH No. 975107 . – Fujian • 3 ♀♀; Jiangle, Longxi Mt. ; 8 Jul. 1991; Changming Liu leg.; ZJUH Nos 969015 , 969017 , 20006524 .

Description

Female

MEASUREMENTS. Length of body 3.0 mm, of fore wing 2.7 mm.

COLOURATION. Yellow; stemmaticum dark brown; third tergite brown; hind tibia laterally brown and ventrally brownish.

HEAD. Width 1.6× median length in anterior view ( Fig. 33D View Fig ) and part of head above eye in lateral view 0.2× height of eye ( Fig. 33C View Fig ); antenna with 23 segments, 1.2× as long as fore wing, five subapical segments moniliform ( Fig. 33E View Fig ); area of stemmaticum mainly granulate; OOL: diameter of posterior ocellus: POL=21: 6: 7; eye 1.5× as long as temple in dorsal view ( Fig. 33B View Fig ); frons punctate-rugose medially, rugose laterally and with weak median ridge; vertex granulate-rugose and with satin sheen; temple largely striate and with satin sheen; face largely granulate-rugose and transversely rugose medio-ventrally, with median bump dorsally; clypeus smooth and shiny, 0.9 × minimum width of face, intertentorial distance 2.4× minimum width between clypeus and eye, clypeus long erect setose and with 3 indistinct teeth medio-ventrally ( Fig. 33D View Fig ); eye large, in lateral view 1.9 × as wide as temple ( Fig. 33C View Fig ), in anterior view its height 0.8× minimum width of face; upper condyle of mandible close to lower level of eyes ( Fig. 33E View Fig ); malar space short, 0.6× as long as basal width of mandible; lower tooth of mandible 0.3 × length of apical tooth, short and minute ( Fig. 33K View Fig ).

MESOSOMA ( Fig. 33G View Fig ). Length 1.5× its width in lateral view; side of pronotum mainly rugose, but dorsally nearly smooth; mesoscutum densely rugose and rather shiny, densely setose; notauli hardly indicated; scutellar sulcus wide ( Fig. 33G View Fig ); scutellum triangular, flat, granulate-rugose and rather shiny; metanotum with short median carina anteriorly and small protruding tooth posteriorly; propodeum coarsely reticulate-rugose, no lateral tubercles or transverse and median carinae.

WINGS. Fore wing 3.0× as long as its maximum width; 1-R1 1.4× as long as pterostigma; r of fore wing 0.3× as long as 3-SR; distance between 1-R1 and wing apex 0.4× 1-R1; 2-SR curved ( Fig. 33F View Fig ); SR1 straight; 2-SR+M present; pterostigma large, parastigma small; 1-CU1 0.4× as long as vein 2-CU1, cu-a oblique and as long as 1-CU1; r: 3-SR: SR1=6: 20:76; 2-SR:3-SR: r-m =33: 20: 11; 2-M bent ( Fig. 33F View Fig ).

LEGS ( Fig. 33J View Fig ). Hind femur with satin sheen, 3.4× as long as wide and widened submedially; hind tibia rather swollen; middle tibia with medium-sized pale-yellow blister; hind coxa smooth and shiny.

METASOMA ( Fig. 33H–I View Fig ). Carapace elliptical in dorsal view, 1.7× as long as wide and 1.1 × as long as mesosoma; first and second tergites coarsely and densely longitudinally rugose; second suture narrow; third tergite as long as second tergite and laterally weakly curved, in dorsal view densely rugose and truncate ( Fig. 33H View Fig ), lateral lamella wide, with shallow emargination; ovipositor sheath narrow and long ( Fig. 33I View Fig ), with some long erect setae; hypopygium protruding apically in ventral view, spine-like in lateral view ( Fig. 33I View Fig ).

VARIATION. Length of fore wing 2.5–3.0 mm; eye 1.3–1.7× as long as temple in dorsal view; 1-R1 1.3–1.5 × as long as pterostigma; hind femur 3.3–3.8 × as long as wide; metasomal carapace 1.6–1.8 × as long as wide.

Male

Unknown.

Host

Unknown.

Distribution

China ( Xizang Zizhiqu, Zhejiang, Henan, Guizhou, Shaanxi, Hubei, Fujian).