Hoplocryptus pini
Creators: name: Watanabe, Kyohei
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Hoplocryptus
Hoplocryptus pini

description: Hoplocryptus pini (Momoi, 1973)
(Figs 3L, 12 A-J)
(Standard Japanese name: Muneaka-togarihimebachi)
Aritranis pini Momoi, 1973: 38.
Material examined. JAPAN, KPM-NK 76578, F, Tokyo, Akiruno City, Ninomiya, Riverside of Tamagawa, 3. V. 2010, K. Watanabe leg.; KPM-NK 75774, F, Tokyo., Oshima Town, Motomachi, Mt. Omaru, Tsubakinomori, 5. VIII. 2012, K. Tsujii leg.; KPM-NK 75779, 75780, F & M, Tokyo., Miyake Vil., Tsubota, Tsubotarindo, 25. VIII. – 22. IX. 2012, K. Tsujii leg. (MsT); MNHAH, F (holotype), Kanagawa Pref., Shonan, 21. III. 1969, S. Yamazaki leg.; KPM-NK 76579, F, Kanagawa Pref., Ebina City, Riverside of Sagamigawa, 21. V. 2006, M. Ooishi & R. Watanabe leg. (YPT); KPM-NK 76580, Niigata Pref., Nagaoka City, Urasemachi, 22. VIII. – 8. IX. 2015, S. Shimizu leg. (MsT); NIAES, F, Fukui Pref., Oono City, Suwara, 22. VI. 1997, Y. Haneda leg.; NIAES, M, Kochi Pref., Asakura, 22. VII. 1987; NIAES, M, Fukuoka Pref., Hakomatsu-cho, 6. X. 1985, M. Yoshida leg.; KPM-NK 75775, F, Kagoshima Pref., Yakushima, Hanyama, 22. VII. – 22. VIII, 2006, T. Yamauchi et al. leg. (MsT); KPM-NK 75777, F, ditto, 28. IX. – 2. XI. 2007; KPM-NK 75776, M, Kagoshima Pref., Yakushima, Arakawa, 29. VII. – 25. VIII. 2007, T. Yamauchi et al. leg. (MsT);
Description. Female (n=9). Body dull, covered with silver setae, length 7.1–8.3 mm.
Head 0.57–0.61 × as long as wide. Clypeus punctate, 0.56–0.59 × as long as maximum wide, with a smooth area along apical margin, slightly convex in lateral view, its apical margin with a median obtuse tooth and a pair of lateral weak convexities. Face 0.45–0.56 × as long as maximum wide. Frons largely reticulate rugose, with or without a weak median longitudinal carina. Length of malar space 0.95–1.1 × as long as basal mandibular width. Base of mandible slightly convex. Upper tooth of mandible almost as long as lower tooth. OD: POL: OOL = 1.0: 1.3–2.0: 1.8–2.0. Flagellum with 23–25 segments. FL I 7.5–10.0 × as long as maximum depth in lateral view and 1.07–1.15 × as long as FL II.
Mesosoma polished, length 1.65 × as long as maximum height in lateral view. Lateral aspect of pronotum reticulate rugose dorsally, longitudinally strigose ventrally. Epomia present. Posterior end of notauli reached to middle of mesoscutum. Mesoscutum finely coriaceous and finely punctate. Scutellum polished, densely punctate. Mesopleuron largely reticulate rugose, with a smooth area on speculum. Mesosternum with a median part of posterior transverse carina. Metapleuron covered with reticulate rugae. Juxtacoxal carina complete. Propodeum punctate on area externa and strongly reticulate rugose on areas behind anterior transverse carina. Anterior section of lateromedian longitudinal carina present. Anterior transverse carina complete (Fig. 12G). Posterior transverse carina complete (Fig. 12G). Pleural carina complete. Propodeal spiracle rounded. Area basalis about as long as wide, its sides widened anteriorly. Fore wing length 5.0– 6.8 mm. Areolet pentagonal, vein 2rs-m and vein 3rs-m more or less convergent anteriorly. Distance from vein 2rs-m to vein 2m-cu shorter than distance from vein 2m-cu to vein 3rs-m. Nervellus of hind wing intercepted below the middle by second abscissa of vein Cu. Apical 0.7 of fore tibia swollen. Hind femur 5.0–5.2 × as long as maximum depth in lateral view. Hind TS I: II: III: IV: V = 4.6–5.2: 2.0: 1.2–1.3: 0.8–0.9: 1.7.
Metasoma. T I 1.8–2.4 × as long as maximum width, polished, densely and finely punctate, with latero-median carina and dorso-lateral carina, without a pair of triangular projections at base. T II 0.85–1.05 × as long as maximum width, densely and finely punctate. T II, T III and T IV finely coriaceous. Ovipositor straight, its sheath 0.83–0.95 × as long as hind tibia.Apex of ovipositor as Fig. 3L.
Colouration (Figs 12 H-J). Body (excluding wings and legs) black to blackish brown, except for: mandible and base of flagellum partly tinged with reddish brown to yellowish brown; FL VI or FL VII to FL IX or FL X white except for outer surface; palpi and humeral plate whitish yellow; metapleuron and propodeum largely or entirely reddish brown to red; T I and posterior margin of T II to T VI reddish brown; membranous parts of metasoma yellowish brown to yellowish white; a median spot of T VII and T VIII white; ovipositor reddish brown. Wings hyaline. Veins and pterostigma blackish brown to brown except for base of pterostigma with a small yellow area. Legs black to blackish brown, except for: coxae, trochanters, trochantelli, femora, tibial spurs, fore tibia and fore tarsus more or less tinged with reddish brown, yellowish brown or brown; base of mid and hind tibiae narrowly tinged with yellowish brown; hind TS III and base of TS IV yellowish brown.
Relatively large variation of coloration present in mesosoma, basal part of metasomal tergites and legs. Pronotum with a dorso-median white marking on collar. Yellow area of base of hind tibia sometimes enlarged. Apex of scutellum sometimes narrowly tinged with reddish brown to red. Postscutellum and axilla of metathorax sometimes reddish brown to red. Mesopleuron sometimes largely tinged with reddish brown to red. TII and T III sometimes largely or entirely reddish brown to red. Fore and mid legs, hind coxa, hind trochanter and hind trochantellus sometimes entirely reddish brown. Hind femur and tibia except both apical parts sometimes reddish brown; Hind TS I to TS IV sometimes largely tinged with reddish brown.
Male (n=5). Similar to female. Body length 6.6–9.3 mm. Face 0.56–0.59 × as long as maximum wide. Length of malar space 0.9 × as long as basal mandibular width. OD: POL: OOL = 1.0: 1.1–1.4: 1.5–2.0. Flagellum with 30–32 segments, with tyloid from FL 13 to FL 16. FL I 1.3–1.43 × as long as FL II. Fore wing 4.9–5.3 mm. Hind femur 5.5–5.65 × as long as maximum depth in lateral view. Hind TS I: II: III: IV: V = 4.0: 2.0: 1.4: 0.9: 1.0. T I 3.0–3.1 × as long as maximum width. T II 1.4–1.9 × as long as maximum width. Face entirely whitish yellow. Malar space and mandible largely whitish yellow. Ventral surface of scape with a whitish yellow marking apically. Antenna without a white area. Whitish yellow area of collar larger than female (if present). Scutellum with a large yellow marking. Subtegular ridge and mesosternum whitish yellow. T IV and base of T V reddish brown to red. T VII with a white median spot. Fore and mid coxae and trochanters whitish yellow. Other parts of fore and mid legs yellowish brown to reddish brown. Hind tibial spurs and apical part of hind TS II, TS III, TS IV and basal part of TS V whitish yellow to white.
Distribution. Japan (Honshu, Izu-oshima Is., Niijima Is., Miyakejima Is. Shikoku, Kyushu and Yakushima Is.).
Remarks. This is the first description of the male of this species. The coloration of the female of this species shows large intraspecific variation. In general, the reddish area(s) of mesosoma, metasoma and legs are sometimes reduced in the specimens collected from Izu Isles and Yakushima Is. I carefully observed the character states of above specimens including various colorations, while no differences were found except for coloration. In addition, the variation of coloration is apparently gradually changed. Thus, I conclude that they are single species, Ho. pini. This is the first records of this species from Miyakejima Is., Shikoku, Kyushu and Yakushima Island.
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 54-56, DOI: 10.5167/uzh-196963, http://zenodo.org/record/11266916