Uchidella toichii, Watanabe, 2021

Watanabe, Kyohei, 2021, Taxonomic and Zoogeographic Study of the Japanese Phygadeuontinae (Hymenoptera, Ichneumonidae), with Descriptions of 17 New Species, Bulletin of the Kanagawa Prefectural Museum (Natural Science) 50, pp. 55-136 : 121-123

Uchidella toichii sp. nov.

(New SJN: Uchida-chibi-togari-himebachi)

( Figs 56A–H , 64H , 66U )

Etymology. The specific name is from Dr. Toichi Uchida, who is a Japanese ichneumonologist.

Type series. Holotype: KPM-NK 82011 , F, JAPAN, Gunma Pref., Katashina Vil ., Marunuma, Yuzawa , 12. VII. 2014, K. Watanabe leg. Paratypes: JAPAN, KPM-NK 82005 , 82038 , 82044 , 3 F, Hokkaido, Horokanai Town, Moshiri, Uryu , 11–17. VII. 2012, K. Watanabe leg. ( MsT) ; KPM-NK 82013 , F, ditto, 16. VII. 2012, M. Ito leg. ; KPM-NK 82021 , F, ditto, 17. VII. 2012 ; KPM-NK 82027 , F, Hokkaido, Sapporo City, Maruyama , 29. VII. 2009, K. Watanabe leg. ; KPM-NK 82007 , F, Fukushima Pref., Hinoemata Vil., Hirosawa-rindo , 19. VII. 2006, T. Ishizaki leg. ; KPM-NK 82008 , F, Gunma Pref., Katashina Vil., Mt. Hotaka-san , 1. VIII. 2007, K. Watanabe leg. ; KPM-NK 82023 , F, same locality and collector of holotype, 2. VII. 2008, K. Watanabe leg. ; KPM-NK 82018 , M, Saitama Pref., Ootaki Vil., Mukaidani , 12. XI. 1986, K. Hara leg. ; KPM-NK 82016 , F, Tokyo, Oume City, Mt. Otsuka-yama , 1. VI. 2008, K. Watanabe leg. ; KPM-NK 82020 , F, Tokyo, Izuoshima Is ., Oshima Town, Mt. Omaru , Tsubakinomori , 5–31. X. 2012, K. Tsujii leg. ( MsT) ; KPM-NK 82029 , F, Tokyo, Izuoshima Is. , Oshima Town, Sashikiji , Mt. Futago , 5–31. X. 2012, K. Tsujii leg. ( MsT) ; KPM-NK 82025 , F, Kanagawa Pref., Yokosuka City, Mt. Miura-fuji to Mt. Takeyama , 13. VII. 2008, K. Watanabe leg. ; KPM-NK 82037 , F, Kanagawa Pref., Yamakita Town, Kurokura , Yushin , 18. V. 2016, K. Watanabe leg. ; KPM-NK 82004 , 82014 , 82019 , 82024 , 82026 , 5 F, Niigata Pref., Sado Is. , Kanaishinbo, Hakuundai to Mt. Myokenzan , 4. VIII. 2009, K. Watanabe leg. ; KPM-NK 82039 , F, ditto, 10. IX. 2010, K. Watanabe leg. ; KPM-NK 82017 , F, Niigata Pref., Sado Is. , Umedu, Mt. Donden-san , 5. VIII. 2009, J. Imura leg. ; KPM-NK 82015 , 82034 , 82036 , 3 F, Niigata Pref., Nagaoka City, Suyoshi Town , Mt. Nokogiri-yama , 25. V. – 7. VI. 2014, S. Shimizu & R. Shimizu leg. ; KPM-NK 82028 , F, Toyama Pref., Nanto City, Togamura, Kamimomose , 4–11. VIII. 2009 , M. Watanabe et al. leg. (MsT); KPM-NK 82033 , F, ditto, 1–8. IX. 2009 ; KPM-NK 82030 , F, ditto, 8–15. IX. 2009 ; KPM-NK 82032 , 82040 , 2 F, Toyama Pref., Toyama City, Arimine, Jyuroudani , 8–15. IX. 2009 , M. Watanabe et al. leg. (MsT); KPM-NK 82042 , F, Toyama Pref., Toyama City, Arimine, Inonedani , 28. VII. – 4. VIII. 2009 , M. Watanabe et al. leg. (MsT); KPM-NK 82041 , F, ditto, 15–22. IX. 2009 ; KPM-NK 82006 , 82009 , 2 F, Fukui Pref., Oono City, Hatogayu , 26. IX. 1982, H. Kurokawa leg. ; KPM-NK 82010 , F, Fukui Pref., Oono City, Mt. Akausagi , 27. VIII. 1980, T. Murota leg. ; KPM-NK 82031 , F, Hyogo Pref., Kobe City, Aina , 23. VI. 2016, K. Ogura leg. ; KPM-NK 82035 , M, Hyogo Pref., Kobe City, Aina , 6. VII. 2016, K. Ogura leg. ; KPM-NK 82043 , F, Hyogo Pref., Shinonsen Town, Kishida , 12. X. 2012, S. Fujie leg. ; KPM-NK 82012 , 82022 , 2 F, Tottori Pref., Wakasa City, Mt. Hyonosen, Oodanganaru , 6. VIII. 2011, K. Watanabe leg.

Description. Female (n=40). Body length 5.1–7.3 (HT: 7.3) mm. Body polished, covered with silver setae.

Head. Clypeus 2.1 times as wide as maximum length, finely and sparsely punctate, its anterior margin subtruncate, without teeth. Face finely punctate ( Fig. 56B ), flat. MSL 0.6–0.7 (HT: 0.7) times as long as BWM. Frons finely punctate except for smooth area above antennal sockets. Gena and vertex finely punctate. OOL distinctly longer than POL and OD ( Fig. 56C ). POL almost as long as OD ( Fig. 56C ). Occipital carina complete, its lower end and joined with hypostomal carina at mandibular base. Upper tooth of mandible distinctly longer than lower tooth. Base of mandible flat. Antenna with 19–23 (HT: 23) flagellomeres. FL III 6.1 times as long as maximum depth in lateral view.

Mesosoma. Lateral part of pronotum smooth except for punctures on dorsal margin. Epomia distinct and long. Mesoscutum densely and finely punctate. Notaulus distinct, fading out in front of center of mesoscutum. Scutellum sparsely punctate, with a lateral longitudinal carina except for apex. Mesopleuron smooth except for fine punctures on areas below speculum and anterior part. Posterior transverse carina of mesosternum absent in front of mid coxae. Metapleuron finely punctate, with a complete juxtacoxal carina. Propodeal carinae complete ( Figs 56E , 64H ). Median section of lateromedian longitudinal carina sometimes narrowly indistinct ( Figs 56E , 64H ). Area basalis distinct ( Figs 56E , 64H ). Area superomedia distinct, as long as wide ( Figs 56E , 64H ). Postero-lateral corner of area dentipara not projected. Propodeum finely and sparsely punctate. Length of fore wing 4.4–6.8 mm. Areolet present ( Fig. 56F ). Vein 2m-cu of fore wing with two bullae ( Fig. 56F ). Nervellus subvertical, intercepted slightly behind the middle ( Fig. 56F ). Hind femur 5.2–5.7 (HT: 5.7) times as long as maximum depth in lateral view. Hind TS I: II: III: IV: V = 2.0: 0.9: 0.6: 0.3: 0.4. Tarsal claws simple.

Metasoma. T I 2.1–2.5 (HT: 2.4) times as long as maximum width, largely longitudinally striate except for smooth apex. Median dorsal carina of T I indistinct. Dorsolateral carina of T I complete. T II wider than long. T II and T III largely smooth ( Figs 56G, H ). T IV to T VI finely and sparsely punctate. Ovipositor sheath 1.03–1.1 (HT: 1.08) times as long as hind tibia. Ovipositor straight, with a nodus and ventral teeth ( Fig. 66U ).

Coloration ( Figs 56A–H ). Body (excluding wings and legs) black. Scape, pedicel, ventral surface of FL I, mandible except for darkened apex, and palpi yellowish brown. Antenna dark brown except for yellowish brown area. Median part of Collar with yellowish brown area. Tegula dark yellowish brown to yellowish brown. Mesoscutum with bule dull reflection. Apex of T I sometimes tinged with reddish brown. Posterior margins of T II to T V tinged with reddish brown. T II usually largely reddish brown except for blackish brown posterior and lateral areas. T III usually reddish brown basally. T IV sometimes with reddish brown area near antero-lateral corner. Reddish brown areas of T II to T IV sometimes reduced. Posterior margin of T VI and T VII white. Membranous part of metasomal sternites yellowish brown. Ovipositor yellowish brown. Wings hyaline. Veins yellowish brown to dark brown. Pterostigma dark brown to blackish brown except for pale base. Legs yellowish brown to reddish brown. Hind coxa with blackish brown spots on anterior and posterior surfaces (the latter spot sometimes indistinct). Hind femur, hind tibia except for subbasal part, and hind tarsus usually darkened.

Male (n=1). Similar to female. Antenna without tyloids. Scutellum and postscutellum weakly tinged with reddish brown. Coxae, trochanters, and trochantelli entirely whitish yellow.

Distribution. Japan (Hokkaido, Honshu, Sado Is. & Izuoshima Is.).

Bionomics. Unknown.

Remarks. This species resembles U. brevicauda Horstmann, 1993 in the long ovipositor, but it can be distinguished by the area superomedia as long as wide (longer than wide in U. brevicauda ).

Figures

Fig. 56. Uchidella toichii sp. nov., KPM-NK 82011 (A-G, holotype) and 82042 (H, paratype), females ―A, lateral habitus; B, head, frontal view; C, head, dorsal view; D, mesoscutum, dorso-lateral view; E, propodeum, dorsal view; F, wings; G, H, T II to T IV, dorsal view.

Fig. 64. Surculus japonicus sp. nov. (A, KPM-NK 81861, holotype), Paraphylax elegans sp. nov. (B, KPM-NK 55078, holotype), Hemiteles japonicus sp. nov. (C, KPM-NK 55021, holotype), H. maculipterus sp. nov. (D, KPM-NK 55026, paratype), Charitopes gastricus (Holmgren, 1868) (E, KPM-NK 81963), Tropistes shimizui sp. nov. (F, KPM-NK 81833, holotype), Uchidella okamotoi (Uchida, 1936) (G, KPM-NK 82073), and Uchidella toichii sp. nov. (H, KPM-NK 82011, holotype), females from Japan ― A–H, propodeum,dorsal view.

Fig. 66. Acrolyta japonica sp. nov. (A, KPM-NK 54996, holotype), Micraris ryukyuensis sp. nov. (B, KPM-NK 81873, holotype), Surculus japonicus sp. nov. (C, KPM-NK 81861, holotype), Bentyra ryukyuana sp. nov. (D, KPM-NK 81887, holotype), Paraphylax elegans sp. nov. (E, KPM-NK 55078, holotype), Pa. politus sp. nov. (F, KPM-NK 55079, holotype), Pa. transstriatus sp. nov. (G, KPM-NK 55080, holotype), Pa.yakushimensis sp. nov. (H, KPM-NK 55081, holotype), Pa. yambarensis sp. nov. (I, KPM-NK 55085, holotype), Hemiteles japonicus sp. nov. (J, KPM-NK 55021, holotype),H. kuro sp. nov. (K, KPM-NK 55024, holotype), H.maculipterus sp. nov. (L, KPM-NK 55025, holotype), H. yamatonis sp. nov. (M, KPM-NK 55032, holotype), Brachypimpla latipetiolator (Uchida, 1935) (N, O, KPM-NK 81973), Isadelphus nigrus sp. nov. (P, KPM-NK 82003, holotype), Lochetica japonica sp. nov. (Q, KPM-NK 81989, holotype), Mastrus molestae (Uchida, 1933) (R, KPM-NK 81987), Megacara similis Sheng, 1999 (S, KPM-NK 81835), Tropistes shimizui sp. nov. (T, KPM-NK 81833, holotype), and Uchidella toichii sp. nov. (U, KPM-NK 82011, holotype), females from Japan ― A-N, P-U, apical part of ovipositor, lateral view (A, C-G, I-K, N, Q-U, left side; B, H, L, M, P, right side); O, apex of ovipositor sheath, lateral view.