Parmortha nigra, Watanabe, 2025

Parmortha nigra sp. nov.

[New SJN: Miyama-onaga-togari-himebachi]

( Figs. 48A–F, 77K, 79P)

Type series. Holotype: JAPAN, KPM-NK 75811 , F, Honshu, Nagano Pref., Outaki Vil., Mt. Ontake-san, Hakkaisan , 8. VIII. 2010, K. Watanabe leg. Paratype: JAPAN: [Honshu] KPM-NK 103043 , F, Gunma Pref., Katashina Vil., Mt. Hotaka-san , 1. VIII. 2007 , M. Irie leg.; KPM-NK 103042 , F, Yamanashi Pref., Hokuto City, Masutomi, Biwakubo-sawa , 28. VII. 2007 , K. Watanabe leg.; KPM-NK 103040 , F, Yamanashi Pref., Koushu City, Yanagisawa-toge , 5. VIII. 2008 , M. Gunji leg.; KPM-NK 103041 , F, ditto , K. Watanabe leg.; KPM-NK 103044 , F, Aichi Pref., Shitara Town, Nishinagura , 26. VII. – 1. VIII. 2015 , J. Imura leg. ( FIT); KPM-NK 103047 & OMNH, 2F, Toyama Pref., Nanto City, Togamura-kamimomose , 21–28. VII. 2009 , M. Watanabe leg. (MsT); KPM-NK 103048 , F, ditto, 18–25. VIII. 2009 ; KPM-NK 103045 , F, Toyama Pref., Toyama City, Arimine, Inonedani , 4–11. VIII. 2009 , M. Watanabe leg. (MsT); KPM-NK 103046 , F, ditto, 11–16. VIII. 2009 .

Description. Female (n = 11). Body matt; lustre dull; covered with setae; body length 7.35–10.3 (HT: 10.3) mm.

Head 0.6–0.65 (HT: 0.61) × as long as wide in dorsal view. Clypeus 2.0–2.1 (HT: 2.0) × as wide as long; slightly convex in lateral view; punctate dorsally, sparsely punctate ventrally, ISP smooth; lower margin weakly rounded in frontal view, obtuse in lateral view. Face 0.45 × as long as minimum width; slightly convex medially; finely and densely punctate. Frons slightly concave above antennal sockets; finely punctate; matt except for smooth areas above antennal sockets. POL 0.8–1.3 (HT: 0.8) × as OD. OOL 1.0–1.4 (HT: 1.1) × as OD. Gena and occiput finely punctate. Dorsal profile of gena rounded in dorsal view; width gradually narrowing anteriorly and somewhat abruptly narrowing posteriorly ( Fig. 48D). Occipital carina complete. Malar space 1.0–1.1 (HT: 1.1) × as long as basal width of mandible. Mandible flat at base; lower tooth equal in length of upper tooth. Antenna with 24–27 (HT: 27) flagellomeres; not flattened and tapped. FL I 5.0–5.7 (HT: 5.0) × as long as maximum depth in lateral view, 1.0 × as long as FL II.

Mesosoma. Pronotum striate ventrally, finely punctate dorsally; collar with smooth area ( Fig. 48E). Epomia absent. Mesoscutum densely and finely punctate, ISP largely smooth. Notaulus long and sharp ( Fig. 48D); posterior end close to centre of mesoscutum. Scutellum punctate; weakly convex in lateral view. Mesopleuron with conspicuous smooth area around speculum; punctures partly united into groove-like foveola ( Fig. 48E). Epicnemial carina present laterally and ventrally. Sternaulus deep in anterior 0.75 of mesopleuron. Metapleuron with complete juxtacoxal carina. Propodeum irregularly rugae and reticulate rugulose; anterior transverse carina absent; posterior transverse carina complete ( Fig. 48F); lateromedian longitudinal carina absent or slightly present; lateral longitudinal carina present and weak; pleural carina complete; area superomedia not defined; apophysis absent; spiracle oval. Fore wing length 6.5–8.75 (HT: 8.75) mm. Areolet as long as maximum width; longer than half length of vein 2m-cu; width gradually narrowing anteriorly; received vein 2m-cu at near middle; anterior width longer than half length of vein 2m-cu ( Fig. 48B). Fore wing vein 1cu-a slightly interstitial to vein M&RS ( Fig. 48B). Nervellus subvertical; intercepted near posterior end of vein ( Fig. 48B). Hind femur reticulate coriaceous; 4.9–5.4 (HT: 5.4) × as long as maximum depth in lateral view. Tarsal claws simple.

Metasoma. T I 2.0–2.1 (HT: 2.1) × as long as maximum width; latero-median carina absent; dorso-lateral carina partly and weakly present. Spiracle of T I behind the mid-length of T I ( Fig. 77K). T II 0.75–0.9 (HT: 0.9) × as long as maximum width. Thyridium present; close to anterior margin of T II; slightly depressed; ca. 3.0 × as wide as length. Ovipositor sheath 2.35–2.4 (HT: 2.35) × as long as hind tibia, 4.9–5.2 (HT: 5.2) × as long as T I. Ovipositor upcurved; apex sharp and with some minute teeth dorsally; apex of lower valve with teeth ( Fig. 79P).

Colouration ( Figs. 48A–F). Body (excluding wings) black to blackish-brown. Setae silver. Subapical part of mandible tinged with reddish-brown. FL VII to FL X with white markings. Fore and mid tibiae and tarsi partly tinged with dark brown. Median membranous part of T VII white. Ovipositor reddish-brown. Wings hyaline. Veins and pterostigma blackish-brown to brown except for yellowish wing base.

Male. Unknown.

Distribution. Japan (Honshu).

Bionomics. Unknown.

Etymology. The specific name is from Latin “ nigra ”, referring to the black body colouration.

Remarks. This species resembles Pa. albitarsale sp. nov. (see remarks of Pa. albitarsale ) and Pa. gigantea sp. nov. but can be distinguished from the latter species by the spiracle of T I situated behind the mid-length of T I (near the mid-length of T I in Pa. gigantea ) and the ovipositor sheath 2.35–2.4 × as long as hind tibia (2.6–2.8 × in Pa. gigantea ).