Aritranis kuro Watanabe 2020, sp. nov.
Creators: name: Watanabe, Kyohei
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Aritranis
Aritranis kuro

description: Aritranis kuro sp. nov.
(Figs 1A, 2A, B, 3A, 4 E-K)
(Standard Japanese name: Yamato-kuro-togarihimebachi)
Type series. Holotype: JAPAN, KPM-NK 75838, F, Toyama Pref., Toyama City, Kamegai, 15–26. IX. 2009, M. Watanabe et al. leg. (MsT). Paratypes: JAPAN, KPM-NK 75824, F, JAPAN, Hokkaido, Horokanai Town, Uryu, Forest of Hokkaido University, 16. VII. 2012, M. Ito leg.; NIAES, F, Hokkaido, Sapporo City, Misumai, Kannonzawa, 3–16. VII. 1992, N. Kuhara leg. (MsT); NIAES, 2 F, ditto, 27. VII. – 11. VIII. 1992; NIAES, 2 M, ditto, 11–22. VIII. 1992; NIAES, F, Yamagata Pref., Mts. Iide, Yachidaira, 19. VI. 1988, K. Konishi leg.; KPM-NK 75826, F, Nagano Pref., Kawakami Vil., Azusayama, 14. VI. 2015, K. Watanabe leg.; KPM-NK 75827, F, Nagano Pref., Outaki Vil., Mt. Ontake-san, Hakkaisan, 6. VIII. 2010, K. Watanabe leg.; KPM-NK 75846, F, Shizuoka Pref., Shizuoka City, Umegashima, Abe-toge, 15. VI. 2008, K. Watanabe leg.; KPM-NK 75833, 75834, 2 F, Toyama Pref., Toyama City, Arimine, Jurodani, 11–16. VIII. 2009, M. Watanabe et al. leg. (MsT); KPM-NK 75828, F, ditto, 1–8. IX. 2009; KPM-NK 75842, F, Toyama Pref., Toyama City, Kamegai, 1–8. IX. 2009, M. Watanabe et al. leg. (MsT); KPM-NK 75844, F, ditto, 8–15. IX. 2009 (MsT); KPM-NK 75829–75831, 75836, 75841, 5 F, same data of holotype, 15–26. IX. 2009, M. Watanabe et al. leg. (MsT); KPM-NK 75835, F, Toyama Pref., Nanto City, Togamura, Kamimomose, 7–14. VII. 2009, M. Watanabe et al. leg. (MsT); KPM-NK 75825, 76576, 76577, 1 F & 2 M, ditto, 21. VII. – 28. VII. 2009, KPM-NK 75845, F, ditto, 28. VII. – 4. VIII. 2009; KPM-NK 75840, F, ditto, 1–8. IX. 2009 (MsT); KPM-NK 75839, F, ditto, 8–15. IX. 2009; KPM-NK 75832, F, ditto, 15–29. IX. 2009; KPM-NK 75837, F, Toyama Pref., Toyama City, Inonedani, 28. VII. – 4. VIII. 2009, M. Watanabe et al. leg. (MsT); KPM-NK 75773, F, Fukui Pref., Natasho Vil., Mushi-dani, 31. V. 1981, T. Murota leg.
Description. Female (n=27). Body covered with silver setae, length 6.5–9.0 (HT: 6.5) mm.
Head 0.55–0.6 (HT: 0.57) × as long as wide, polished, finely punctate. Clypeus sparsely punctate, 0.55–0.6 (HT: 0.56) × as long as maximum wide, slightly convex in lateral view, its apical margin rounded, without a median tooth or convexity (Fig. 1A). Face 0.45–0.5 (HT: 0.45) × as long as maximum wide, finely coriaceous. Frons finely coriaceous except for a narrow smooth area above antennal sockets. Length of malar space 0.75–0.8 (HT: 0.8) × as long as basal mandibular width. Base of mandible almost flat. Upper tooth of mandible almost as long as lower tooth. OD: POL: OOL = 1.0: 1.3–1.4 (HT: 1.3): 1.1–1.15 (HT: 1.1). Flagellum with 26–27 (HT: 27) segments. FL I 5.0–5.5 (HT: 5.0) × as long as maximum depth in lateral view and 0.97–1.0 (HT: 1.0) × as long as FL II.
Mesosoma polished. Lateral aspect of pronotum punctate dorsally, longitudinally strigose ventrally except for antero-ventral small smooth area. Epomia present, short. Posterior end of notauli reached to middle of mesoscutum. Mesoscutum densely punctate. Scutellum punctate. Mesopleuron largely rugose, with a smooth area on speculum. Mesosternum with the short median portion of posterior transverse carina. Metapleuron reticulate rugose and obliquely rugose ventrally. Juxtacoxal carina present, partly indistinct posteriorly. Propodeum punctate on area externa and strongly reticulate rugose on areas behind anterior transverse carina (Figs 2A, 4H). Anterior section of lateromedian longitudinal carina present (Fig. 2A). Anterior transverse carina complete (Figs 2A, 4H). Posterior transverse carina complete or sometimes median part of the latter indistinct, arched forward medially (Figs 2A, 4H). Pleural carina complete. Propodeal spiracle oval. Area basalis trapezoidal, widened anteriorly. Fore wing length 4.9–7.0 (HT: 4.9) mm. Areolet pentagonal, vein 2rs-m and vein 3rs-m more or less convergent anteriorly (Fig. 4I). Distance from vein 2rs-m to vein 2m-cu slightly shorter than distance from vein 2m-cu to vein 3rs-m (Figs 4F, I). Nervellus of hind wing intercepted below the middle by second abscissa of vein Cu (Fig. 4I). Hind femur 5.0 × as long as maximum depth in lateral view. Hind TS I: II: III: IV: V = 4.4–4.8 (HT: 4.4): 2.0: 1.3–1.5 (HT: 1.3): 0.7–0.8 (HT: 0.7): 1.2.
Metasoma polished. T I 2.2–2.4 (HT: 2.2) × as long as maximum width, largely smooth, with a few, sparse punctures, without latero-median carina and dorso-lateral carina (Fig. 2B), with a pair of small convexities present at base. T II 1.0–1.2 (HT: 1.0) × as long as maximum width. T II, T III and T IV finely coriaceous, with fine punctures. Ovipositor distinctly longer than half length of fore wing, its sheath 1.68–1.8 (HT: 1.7) × as long as hind tibia. Apex of ovipositor as Fig. 3A.
Colouration (Figs 4E–I). Body (excluding wings and legs) black to blackish brown, except for: clypeus, apex of mandible, posterior margin of metasomal tergites and ovipositor reddish brown; FL V to FL IX white except for outer surface; palpi dark brown; humeral plate and membranous parts of metasomal sternites tinged with yellowish brown; apex of metasoma with white membranous part. Wings hyaline. Veins and pterostigma blackish brown to brown. Legs black to blackish brown, except for: tibial spurs yellowish brown; apical part of hind TS II to TS IV white. Fore and mid legs usually partly tinged with yellowish brown.
Male (n=4). Similar to female (Figs 4J, K). Clypeus 0.5–0.56 × as long as maximum wide. Face 0.57–0.59 × as long as maximum wide. Length of malar space 0.55–0.6 × as long as basal mandibular width. OD: POL: OOL = 1.0: 1.5: 1.2–1.45. Flagellum with 29–30 segments, with tyloid from FL 13 to FL 16 or 17. FL I 4.3 × as long as maximum depth in lateral view, 1.2–1.3 × as long as FL II. Posterior transverse carina of propodeum weaker than female. Hind femur 5.2–5.5 × as long as maximum depth in lateral view. Hind TS I: II: III: IV: V = 4.0–4.2: 2.0: 1.4: 0.8: 1.1. T I 3.0–3.4 × as long as maximum width. T II 1.5–1.75 × as long as maximum width. Antenna without a white area. Face, clypeus and mandible largely yellow. Frons with a pair of small yellow spots along inner margin of eye. Palpi whitish yellow. Fore and mid trochanters and trochantelli with a ventral yellow area. Fore and mid femora, tibiae and tarsi largely reddish or yellowish brown. Base of hind femur narrowly tinged with reddish brown. Base of hind tibia tinged with yellowish brown. Malar space sometimes tinged with yellow.
Distribution. Japan (Hokkaido and Honshu).
Etymology. The species name is from the black (Japanese term: Kuro) coloration of body.
Remarks. This species resembles Ar. chinensis (Uchida, 1952) and Ar. robiniae Sun & Sheng, 2006 in body structures but it can be distinguished by the metasomal tergites black (black with conspicuous red area(s) in Ar. chinensis and Ar. robiniae) and the ovipositor distinctly longer than half length of fore wing (not distinctly longer than half length of fore wing in Ar. chinensis and Ar. robiniae). This species can easily be distinguished from Ar. occicor by the clypeus without a distinct median tooth (with a tooth in female of Ar. occicor).
description: Published as part of Watanabe, Kyohei, 2020, Expression of green fluorescent protein defines a specific population of lamina II excitatory interneurons in the GRP :: eGFP mouse, pp. 29-66 in Bulletin of the Kanagawa Prefectural Museum (Natural Science) 49 on pages 31-36, DOI: 10.5167/uzh-196963, http://zenodo.org/record/11266916