Leptobatopsis yaima Watanabe & Ito 2023, sp. nov.
Creators: name: Watanabe, Kyohei
name: Ito, Masato
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Leptobatopsis
Leptobatopsis yaima

description: Leptobatopsis yaima sp. nov.
(Figs 1 H, 2 H, O, U, 9 A–D, 10 N, O, 11 H, I, 12 G, H)
Type series. Holotype: F, JAPAN, Okinawa Pref., Iriomotejima Is., Komi, Airagawa-rindo, 14 May 2008, K. Watanabe leg. (KPMNH). Paratypes: JAPAN: [Ryukyu Isls.] 1 M, Okinawa Pref., Ishigakijima Is., 14. IV. 1962, I. Miyagi leg. (MNHAH); 1 F, Okinawa Pref., Ishigakijima Is., Shokubutsu-en, 10 Jun. 1974, H. Makihara leg. (SEHU); 1 M, Okinawa Pref., Ishigakijima Is., 9–13 Apr. 1999, M. Suenaga & K. Nagashima leg. (NARO); 2 M, Okinawa Pref., Iriomotejima Is., Ohara, 16 Apr. 1978, K. Ogata leg. (NARO); 1 F, Okinawa Pref., Iriomotejima Is., Shiiminato, 2–15 Nov. 1995, K. Ebi leg., MT (MU); 2 M, ditto, 30 May–12 Jun. 1996 (MU); 1 M, ditto, 13–26 Jun. 1996 (MU); 2 F & 1 M, ditto, 5–18 Sep. 1996 (MU); 2 F & 4 M, 3–16 Oct. 1996 (MU); 1 F, 17–30 Oct. 1996 (MU); 8 M, Okinawa Pref., Iriomotejima Is., Komi, Airagawa-rindo, 11 May 2008, K. Watanabe leg. (KPMNH); 9 M, ditto, 14 May 2008 (KPMNH); 5 M, Okinawa Pref., Iriomotejima Is., Riverside of Urauchigawa, 12 May 2008 (KPMNH); 1 F, ditto, 13 May 2008 (KPMNH); 11 M, ditto, 14 May 2008 (KPMNH); 1 F, ditto, 22 Jun. 2011 (KPMNH); 1 M, ditto, 12 May 2014, M. Ito leg. (KPMNH); 1 F, Okinawa Pref., Iriomotejima Is., Uehara, 12–20 May 2014, M. Ito leg., MT (KPMNH).
Description. Female (n = 11). Body length 8.0–11.9 (HT: 9.2) mm, polished and covered with punctures and short silver setae.
Head 0.65–0.75 (HT: 0.7) × as long as wide. Clypeus 1.7–1.8 (HT: 1.8) × as broad as high, smooth except for dorsal half sparsely punctate, slightly convex in lateral view. Face 1.3–1.35 (HT: 1.3) × as broad as high, punctate, slightly convex medially in lateral view. Length of malar space 1.0 × as long as basal mandibular width. POL 0.8–1.1 (HT: 0.9) × as long as OD. OOL 0.7–0.8 (HT: 0.75) × as long as OD. Antenna with 42–44 (HT: 43) flagellomeres. FL I 8.5–10.0 (HT: 10.0) × as long as maximum depth in lateral view and 2.1–2.5 (HT: 2.5) × as long as FL II.
Mesosoma densely punctate. Epomia present ventrally. Smooth area of mesoscutum present on the posterior part of the anterior half (anterior to the line between each tegula) (Fig. 1 H). Scutellum largely smooth. Speculum with a small smooth area (Fig. 12 G). Dorsal surface of propodeum punctate to rugose punctate. Fore wing length 5.8–7.75 (HT: 6.5) mm. Areolet received vein 2m-cu slightly based of the outer angle. Nervellus subvertical, intercepted slightly posterior to the middle. Terminal tooth of fore and mid tarsal claws larger than other teeth (Fig. 2 H). Hind femur 4.7–4.9 (HT: 4.9) × as long as maximum depth in lateral view. Ratio of length of hind first to fifth tarsomeres 4.3–4.8 (HT: 4.8): 2.0: 1.35–1.4 (HT: 1.4): 0.6–0.7 (HT: 0.6): 0.9–0.95 (HT: 0.95). Hind second tarsomere 6.65–8.0 (HT: 6.65) × as long as maximum depth in lateral view. All trochantelli without an apical tooth on the outer side. Hind tarsal claws each with an accessary tooth (Figs 2 U).
Metasoma. T I 4.3–4.5 (HT: 4.5) × as long as maximum width, smooth with a few fine punctures. T II 1.9–2.0 (HT: 1.9) × as long as maximum width. T II to T V coriaceous with fine and sparse punctures. Ovipositor sheath 1.6–1.7 (HT: 1.65) × as long as hind tibia.
Coloration (Figs 9 A, B, 10 N, 11 H, 12 G). Body (excluding wings and legs) black, a pair of markings of frontal orbit, malar space, mandible except for teeth, palpi and ventral surfaces of pedicel and basal segments of flagellum, collar, postero-dorsal corner of pronotum, scutellum except for basomedian black area, subtegular ridge and postero-dorsal and postero-ventral corners of mesopleuron whitish yellow. each base of T I to T III, each posterior margin of T I to T VII (usually indistinct in T IV and T V), base of S I whitish yellow to yellow. Membranous part of metasomal sternites and posterior margin of subgenital plate yellowish brown. Ovipositor reddish brown. Wings hyaline except for apical clouded area of fore wing. Veins and pterostigma blackish brown except for yellowish-brown wing base. Fore and mid legs whitish yellow to brown. Mid tarsus usually more or less darkened. Hind leg blackish brown. Hind coxa, femur and tibia except for base and apical part, TS II to TS IV more or less tinged with yellowish brown.
Male (n = 45). Similar to female except for coloration (Figs 9 C, D, 10 O, 11 I, 12 H). Clypeus 1.4–1.5 × as broad as high. Face 1.1–1.2 × as broad as high. POL 0.65–0.7 × as long as OD. OOL 0.45–0.5 × as long as OD. Antenna with 40–45 flagellomeres. FL I 8.0–8.8 × as long as maximum depth in lateral view. Hind femur 5.0–5.4 × as long as maximum depth in lateral view. T I 6.0–6.4 × as long as maximum width. T II 2.8–3.2 × as long as maximum width. Head yellow except for median part of frons, vertex, occiput, dorsal part of gena, and mandibular teeth black.Antenna more or less darkened except ventral surfaces of scape, pedicel and basal segments of flagellum. Mesosoma yellow to reddish yellow. Mesoscutum black except for a pair of sublateral yellow spots. Dorsal part of propodeum largely black. Axillae black. Apical part of T I, T II except for base, T V, T VI and TVII blackish brown to black. Wings hyaline, without apical clouded area. Fore and mid legs yellow to yellowish brown. Mid tarsus more or less darkened. Hind leg yellowish brown to reddish brown. Dorso-apical area of hind coxa, hind trochantellus, apical part of hind femur, base and apical part of hind tibia, basal part of TS I and TS V blackish brown to black. Hind tibia except for blackish area and hind TS II to IV whitish yellow.
Distribution. Japan (Ishigakijima Is. and Iriomotejima Is.).
Bionomics. Host unknown. Adults were collected in April, May, June, September, October and November. The author collected this species at the forest edge of a subtropical rainforest on Iriomotejima Island.
Etymology. The species name is derived from the local language of the Yaeyama Islands, Yaima, which means Yaeyama. The localities of this species, Ishigakijima Is. and Iriomotejima Is., belong to the islands.
Remarks. This species resembles L. nigra in body coloration and partly smoothed mesoscutum but can be distinguished from the latter by the following combination of character states: yellow markings of the frons enlarged, with the inner margin close to the median ocellus (not enlarged, with the inner margin separated from the median ocellus by its diameter in L. nigra); scutellum with a conspicuous yellow marking (entirely black in L. nigra); ovipositor sheath 1.6–1.7 × as long as hind tibia (1.45 in L. nigra).
description: Published as part of Watanabe, Kyohei & Ito, Masato, 2023, Revision of the genus Leptobatopsis Ashmead, 1900 (Hymenoptera, Ichneumonidae, Banchinae) from Japan, with some taxonomic notes of Asian species, pp. 401-426 in Zootaxa 5339 (5) on pages 419-424, DOI: 10.11646/zootaxa.5339.5.1, http://zenodo.org/record/8309300