Neohybrizon mutus Hisasue & Konishi 2019, sp. nov.
Creators: name: Hisasue, Yu
name: Konishi, Kazuhiko
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Neohybrizon
Neohybrizon mutus

description: Neohybrizon mutus Hisasue & Konishi, sp. nov.
Gen. sp. Komatsu & Konishi, 2010: 575.
Material examined. Holotype, ♀, Hitsujigaoka (43.00°N / 141.24°E), Sapporo, Hokkaido, Japan, 6–13.viii.2003 (K. Konishi), MT, EUMJ.
Paratypes: [Hokkaido] 1♀ (9–22. viii. 2002), 4♀ (6–13. viii. 2003), 14♀ (13–20. viii. 2003), 1♀ (27. viii–3.ix. 2003), 1♀ (19–26.vii.2007), 3♀ (26.vii–2.viii.2007), 7♀ (2–9.viii.2007)& 4♀ (9–16.viii.2007), 43°00’N / 141.24°E, Hitsujigaoka, Sapporo (K. Konishi), MT, EUMJ, ZI; 5♀ (7–14. viii. 2009), 5♀ (14–21. viii. 2009), 3♀ (21–28. viii. 2009), 1♀ (28. viii–4. ix. 2009) & 1♀ (11–18. ix. 2009), 43°00’09”N / 141°24’56”E, Hitsujigaoka, Sapporo (K. Konishi), MT, EUMJ; 2♀ (1–8. viii. 2012), 1♀ (15–22. viii. 2012), 2♀ (25. vii–1. viii. 2012), 3♀ (8–15. viii.2012) & 1♀ (22–29. viii. 2012), 43°00’24”N / 141°24’52”E, Hitsujigaoka, Sapporo (K. Konishi), MT, EUMJ; 8♀ (18–26. viii. 1998, K. Mizota et al.) & 3♀ (4–18. viii. 2001, 42°58’N / 141°12’E, T. Yoshida), Hyakumatsu-zawa, Sapporo, MT, BMNH, SEHU; 6♀ (24. viii–7. ix. 1993, N. Kuhara, EUMJ), 2♀ (1–8. viii. 2000, K. Uesugi, SEHU), 12♀ (1–8. viii. 2000, K. Uesugi, SEHU) & 8♀ (7. viii–13. ix. 2002, stream side, 42°58’N / 141°15’E, T. Yoshida, SEHU), MT, Kannon-zawa, Sapporo; 8♀, Misumai (small stream), Sapporo, 27. vii–13. viii. 1994 (N. Kuhara, MT), EUMJ; 1♀ (24–31. viii. 2001, H. Sugaya, FIT) & 1♀ (7. vii. 2002, 42°57’N / 141°14’E, T. Yoshida), Mt. Hakken-zan, Sapporo, SEHU; 9♀ (7. viii. 1999), 11♀ (14. viii. 1999), 1♀ (21. viii. 1999) & 1♀ (28. viii. 1999), Mt. Maruyama (50 m), Sapporo (K. Mizota et al.), MT, SEHU; 1♀, Mt. Okuteine-yama (43°04’N / 141°08’E), Sapporo, 3–17. vii. 2011 (R. Takayanagi, MT), SEHU; 3♀ (27. vii–21. viii. 2007, Natural forest, 42°54’N / 141°16’E), 11♀ (27. vii–21. viii. 2007, Selectively cut forest, 42°54’N / 141°16’E) & 3♀ (27. vii–21. viii. 2007, Natural forest, 42°56’N / 141°16’E), Mt. Soranuma-dake, Sapporo (A. Ueda), MT, AEI, EUMJ; 1♀, Nakayama-toge, Sapporo, 4. ix. 2003 (T. Yoshida), SEHU; 1♀ (9. viii. 2001, T. Yoshida, SEHU) & 3♀ (18–31. viii. 1993, N. Kuhara, MT, EUMJ), Nopporo, Ebetsu; 8♀ (3–17. viii. 2007, 180 m, 43°00’N / 142°04’E), 2♀ (17–31. viii. 2007, 180 m, 43°00’N / 142°04’E) & 3♀ (16. vii–6. viii. 2008, 263 m, 43°01’N / 142°05’E), Ohyubari (Natural forest), Yubari (A. Ueda), MT, EUMJ; 11♀ (13–21. viii. 2001), 20♀ 3♂ (21. viii–3. ix. 2001) & 1♀ (3–21. ix. 2001), Moizari River, Eniwa (T. Ohkawara & T. Ito), MT, EUMJ; 10♀, Kusabue-rindo (42.7154°N / 141.2143°E), Chitose, 17. viii–1. ix. 2012 (N. Kuhara, MT), BM, EUMJ; 1♀, Lake Shikotsu, Chitose, 28. vii–11. viii.2000 (K. Uesugi, MT), SEHU; 1♀, Oohonai River, Makkari, 18–28. viii. 1998 (M. Nakajima, MT), NIAES; 3♀ (11–29. viii. 2002, 42°29’22”N / 141°03’34”E) & 2♀ (29. viii–23. ix. 2002, 42°29’N / 141°03’E), Mt. Raiba-dake, Noboribetsu (T. Yoshida), MT, SEHU; 1♀, Ohnuma, Nanae, 24. viii. 1994 (R. Matsumoto), OMNH. [Honshu] Aomori Pref.: 1♀, Kawaratai (40°31’N / 140°10’E), Nishimeya, 15–25. vii. 2013 (T. Nakamura, MT), EUMJ. Tochigi Pref.: 5♀ (24. vii–17. viii. 2014) & 9♀ (1-25. viii. 2013), Dodaira, Enna-skyline, Nasushiobara (T. Nakayama), MT, EUMJ; 6♀, Nikko-zawa–Kinunuma, Nikko, 14. viii. 2004 (H. Makihara, MT), EUMJ; 1♀, Sukkan-sawa, Kita-one (1000 m), Nasushiobara, 13–21. viii. 2008 (T. Matsumura, MT), TPM. Gunma Pref.: 1♀, Mt. Hotakasan, 29. viii. 2006 (H. Katahira), KPMNH. Niigata Pref.: 1♂, Sasagamine (1230–1290 m) (36°51'N / 138°04'E), Myoko, 17. viii. 2013 (S. Shimizu), Sweeping, EUMJ. Nagano Pref.: 1♀, Utsukushi-matsu (1350 m) (36.135°N / 138.234°E), Nagawa, 23. viii. 2012 (S. Fujie), EUMJ; 1♀, Abo-toge, Matsumoto, 5. ix. 2009 (T. Komatsu), EUMJ; 1♂, Mt. Ontake-san–Mt. Hakkai-san (1660–1700 m) (35°51'47"N / 137°31'37"E), Ohtaki, 8. viii. 2010 (K. Watanabe), KPMNH. Gifu Pref.: 1♀ (24. vii-3. viii. 2010) & 2♀ (9–16. viii. 2010), Shima (800 m), Shirakawa (R. Sugiura & H. Sumi, MT), OMNH; 1♀, Hidarimata, Kamitakara, 1. ix. 1996 (M. Sueyoshi), OMNH. Osaka Pref.: 1♀ (23. vii–2.viii. 2002), 14♀ (2–10. viii. 2002) & 1♀ (10–20. viii. 2002), Mt. Izumi-Katsuragisan, Kishiwada (R. Matsumoto, MT), OMNH. Nara Pref.: 1♀, Nikaidake–Kinomiyazuka (34.3507°N / 136.0661°E), Mt. Azami-dake, Kawakami, 6–23. viii. 2010 (R. Matsumoto, MT), OMNH. [Shikoku] Ehime Pref.: 1♀, Hontani, Odamiyama, 26–30. ix. 2008 (E. Yamamoto, MT), EUMJ; 1♀, Omogokei, Kumakogen, 20. ix. 1958 (K. Kamijo), SEHU.
Description. FEMALE (n=20) (Fig. 4). Body 4.5–5.6 mm long. Fore wing 3.4–4.7 mm long. Head wider than high, 0.6–0.9 × as long as wide in frontal view (Fig. 1); head length 0.4–0.5 × as long as wide (Fig. 2); face with median longitudinal convexity and with a short longitudinal ridge on dorso-median portion; face smooth except on median longitudinal convexity granulate; POL 0.8–1.2 × as OD; OOL 0.7–1.3 × as long as OD; LOL 0.3–1.0 × as long as OD; FI 0.2–0.3; occiput and interocular area polished; minimum interocular distance 1.2–1.9 × as long as compound eye width of same line; inner margins of eyes convergent toward ventrally, not emarginated at antennal socket; gena to vertex along the outer orbit of eye with sparse hairs; GOI 2.4–5.3; occiput higher than wide (Fig. 6); occipital carina strong (Fig. 6); anterior tentorial pit large and deep; clypeus very narrow, apical portion of clypeus 0.2–0.4 × as wide as minimum interocular distance, with some longitudinal striae, apical margin rounded; malar space concaved into a crescentic, apical margins depressed, with carina; mouth parts much reduced; mandible absent; area of surrounded by hypostomal carina elliptic; maxillary palpus reduced to 1 segment; labial palpus disappeared; antenna with 11 flagellomeres (Fig. 8); scape about as long as pedicel or somewhat short, F1 relatively slender, 7.3–11.7 × as long as wide; relative proportion of length of all flagellomeres, F1: F2: F3: F4: F5: F6: F7: F8: F9: F10: F11= 3.3: 2.4: 2.3: 2.3: 2.2: 2.2: 2.1: 2.0: 1.9: 1.7: 2.2.
Mesosoma polished (Fig. 10); anterior margin of pronotum with transverse groove, and with ventral margin rounded; pronotal collar short (Fig. 14); mesoscutum 1.1–1.4 × as long as wide except marginal ring, highly elevated and narrowed toward anteriorly; marginal rim of mesoscutum lamellate; anterior half of mesoscutum scattered punctures with hairs except median part; posterocentral area of mesoscutum depressed; scutellum basically impunctate, with lateral carina extending anterior half; post scutellum strongly convex; epicnemial carina absent (Fig. 12); mesopleural fovea elongate to median portion of mesopleuron and rugose; mesopleural suture distinct; anterior portion of mesopleuron rounded, with hairs and fine wrinkles (Fig. 12); sternalus absent; posterocentral portion of metapleuron depressed; pleural carina strongly curved; propodeum with rugose carinae, with sparse hairs; propodeal spiracle elliptic. Legs with weak and dense hairs (Fig. 15); femora clavate. Fore coxa with longitudinal carina. Hind coxa 1.9–2.7 × as long as trochanter; femur 5.5–7.8 × as long as trochanter; tibia curved dorsally at apical 1/3; basitarsus 0.7–0.9 × as long as following tarsomeres combined; 1–3 tarsomeres parallel sided in lateral view; 2–5 tarsal segments weakly flattened; 4th tarsomere 1.3–1.9 × as long as 5th tarsomere; maximum width of 4th tarsomere 1.4–1.8 × as wide as maximum width of 5th tarsomere; apical width of 5th tarsomere as wide as basal width.
Fore wing entirely covered with dense hairs (Fig. 9); stigma slender, over 8.9 × as long as maximum width; M+CU non-tubular except apical area; RS almost straight, apical 1/5 slightly curved; M entirely straight; AA nontubular except apical portion; 1cu-a opposite M&RS; 2r&RS short, 0.2–0.3 × as long as 1m-cu&M; 1m-cu&M 2.5–3.5 × as long as first abscissa of CU; distal abscissa of CU straight, apical 1/4 non-tubular; 2cu-a present basal half; RS+M very short, sometimes absent; M+CU present only apical portion. Hind wing slender, 4.8–5.9 × as long as wide, and with four hamuli; veins non-tubular except R; RA, RS, M+CU, M and CU colored.
Metasoma slender (Fig. 16); T1–T4 depressed, smooth and hairless except apical and lateral marginal areas with sparse hairs; T1 polished, 3.3–4.3 × as long as apical width, apical width 1.4–1.8 × as wide as basal width, posterocentral area with longitudinal depression (Fig. 16); T2 1.1–1.5 × as long as T1, 2.9–4.7 × as long as apical width, apical width 1.1–2.1 × as wide as basal width, with some wrinkles laterally, and dorsal contour concave in lateral view; around spiracles of T1 and T 2 triangularly raised (Fig. 16); T3 1.4–3.1 × as long as apical width; dorsal contour of T2 and basal portion of T3 concave in lateral view; T5–T7 compressed, and entirely covered with dense hairs; ovipositor tapering toward apex; ovipositor sheath 0.2–0.4 × as long as hind basitarsus, lateral and dorsal area with dense hairs.
Coloration: Head blackish-brown; clypeus yellowish brown except apical 1/5 whitish yellow, antennal sockets, scapes, basal half of 1st flagellomere yellow-brown; distal half of 1st flagellomere, triangular tubercle, pedicels yellowish-brown; maxilla, labium, maxillary and labial palpi pale-yellow. Mesosoma blackish-brown; propleuron, mesoscutum, scutellum, and lower part of mesopleuron brown; anterior portion of mesoscutum brownish-brown except central part; lower part of pronotum, anterolateral margin of mesonotum, marginal ring of mesoscutum, posterolateral margin of scutellum, posterior margin of propodeum yellowish-brown; anterior margin of mesopleuron and tegula pale-yellow. Fore and middle legs brownish-yellow; fore and middle coxae and trochanters whitishyellow. Hind leg brown; hind coxa brownish-yellow. Wings hyaline; stigma and veins blackish-brown. Metasoma brown; T1 and sternite blackish-brown; anterior margins of T2–T3, and 4T brownish-yellow; ovipositor brownishyellow; T2–T4 whitish-yellow.
MALE (n=5) (Fig. 5). Body 4.8–5.4 mm long. Fore wing 3.7–4.2 mm long. Similar to females except as follows. Head wider than high, 0.7 × as high as wide in frontal view (Fig. 7); head length 0.5–0.6 × as long as wide; POL 1.1–1.5 × as OD; OOL 1.0–1.2 × as long as OD; LOL 0.7–1.0 × as long as OD; FI 0.2; minimum interocular distance 1.8–2.2 × as long as compound eye width of same line; GOI 2.3–3.8; clypeus very narrow, apical portion of clypeus 0.2–0.3 × as wide as minimum interocular distance; malar space often strongly concaved than female; F1 7.8–13.5 × as long as wide; relative proportion of length of all flagellomeres, F1: F2: F3: F4: F5: F6: F7: F8: F9: F10: F11= 3.0: 2.3: 2.2: 2.3: 2.3: 2.3: 2.2: 2.0: 2.0: 1.9: 2.3. Mesoscutum 1.2–1.3 × as long as wide except marginal rim; scutellum more abruptly narrowed than in female. Hind coxa 1.9–2.5 × as long as trochanter; femur 5.4–7.5 × as long as trochanter; basitarsus 0.8–0.9 × as long as following tarsomeres combined; 4th tarsomere 1.3–1.6 × as long as 5th tarsomere; maximum width of 4th tarsomere 1.2–1.5 × as wide as maximum width of 5th tarsomere. Stigma, over 10 × as long as maximum width; 1m-cu&M 2.1–3.8 × as long as first abscissa of CU. Hind wing 4.9–6.1 × as long as wide. T1 3.2–3.5 × as long as apical width; T2 1.2–1.4 × as long as T1, 2.9–4.1 × as long as apical width, apical width 1.3–1.9 × as wide as basal width; T3 1.3–2.2 × as long as apical width. Subgenital plate transverse and somewhat reduced (Fig. 17); apical margin emarginate medially and with a pair of hairs; basal margin without median apodeme and acute laterally (Fig. 18-c). Apical and antero-ventral margin of paramere with sparse hairs (Fig. 18); apical margin of paramere truncated; apical part of digitus slightly expand. Aedeagus slender, penis valve slightly curved (Fig. 19).
Coloration similar to females except clypeus and mesosoma, clypeus and lower part of mesopleuron whitish yellow (Fig. 13), anterior portion of mesoscutum brownish-yellow except central part (Fig. 11).
Distribution. Hokkaido, Honshu (Aomori, Tochigi, Gunma, Niigata, Nagano, Gifu, Osaka, Nara), Shikoku (Ehime).
Host. Myrmica kotokui Forel, 1911 (Hymenoptera: Formicidae) (Komatsu & Konishi, 2010).
Etymology. Named after the Latin ‘mutus’, meaning quiet, reffering to the much reduced mouth parts.
description: Published as part of Hisasue, Yu & Konishi, Kazuhiko, 2019, A new genus of the subfamily Hybrizontinae (Hymenoptera: Ichneumonidae) from Japan, pp. 241-250 in Zootaxa 4664 (2) on pages 243-246, DOI: 10.11646/zootaxa.4664.2.6, http://zenodo.org/record/3385635