Nipponodipogon nagasei (Ishikawa, 1965)

Shimizu, Akira, Lelej, Arkady S. & Loktionov, Valery M., 2015, Revision of the Palaearctic brood parasitic genus Nipponodipogon Ishikawa, 1965 of spider wasps (Hymenoptera: Pompilidae: Pepsinae), Zootaxa 3948 (3), pp. 497-520 : 507-510

5. Nipponodipogon nagasei (Ishikawa, 1965)

( Figs 5 , 8 B, D, G, 9F–G)

Dipogon (Nipponodipogon) nagasei Ishikawa 1965a: 91 , plate 8, ♀ (holotype, ♀, Japan, Nagano Pref., Karuizawa, 31.viii.1952 (R. Ishikawa) [TMUZ]; examined); Shimizu 1996: 508.

Nipponodipogon nagasei: Lelej & Loktionov 2012b: 11 .

Diagnosis. FEMALE. The female is similar to that of N. rossicus but may be distinguishable by having the following characteristics: the gena more strongly receding posteriorly in dorsal view ( Fig. 5 B vs. Fig. 6 C). MALE. The male is similar to that of N. rossicus in many characters, including those of the subgenital plate and genitalia, but is distinguished from the latter by having the genitalia with much longer setae on anterior margin of paramere ( Fig. 5 G vs. Fig. 6 J).

Redescription. FEMALE (measurements of the holotype are given in parentheses). Length: body 4.7−7.3(5.2) mm; fore wing 3.8–5.0(4.2) mm. Body weakly polished. Body and legs black. Following brown to ferruginous: apical half of mandible, palpi, labrum, clypeus apically, scape beneath, lateral margin of pronotum, posterolateral margin of metanotum, tegula, laterotergum, posterior and lateral margins of metasomal terga and sterna, fore tibia, fore tarsus and each segment of legs apically; tibial spurs yellowish brown; mid and hind tarsi paler below (occasionally legs largely brown).

Head and mesosoma except propodeum densely punctate; interspace of punctures on frons and mesoscutum alutaceous but subpolished. Disc of metanotum with punctures smaller but denser than those on scutellum. Upper metapleuron finely striate, interspace of striae punctate with posterior impunctate polished rim. Propodeum with dorsum strongly and densely punctate, interspace of punctures strongly alutaceous; declivity densely and irregularly reticulato-rugulose; posterolateral margin with several strong ridges. Metasomal terga minutely punctate; interspace of punctures feebly alutaceous on T1 but more strongly alutaceous on remainder.

Body covered with weak gray pubescence. Erect setae weak and inconspicuous for most part.

Head 1.1–1.2(1.1) × as broad as long. Vertex gently convex between eye tops ( Fig. 5 A). Upper frons slightly convex; frontal line impressed below. Inner orbits convergent above, slightly convergent or subparallel below. Ratio of UID:MID:LID = 7.4–8.1:10:8.8–9.4(7.6:10:9.0). Ocelli small; ocellar triangle right- or obtuse-angled, weakly raised. Ratio of POL:OOL = 1:0.72–1.1(0.87). Occipital margin not remarkably concave ( Fig. 5 B). Gena 0.5–0.7 (0.6) × as broad as eye in profile, not broadened ventrally. Clypeus 2.6–2.9(2.9) × as broad as long, raised medially with basilateral elliptic depression; lateral margin nearly straight; lateral angle subangulate; apical rim slightly depressed and impunctate; apical margin weakly emarginate. Apical margin of labrum arcuate or nearly straight medially. Mandible normal-sized with acute apex and two additional teeth ( Fig. 8 B). F1 1.6–2.4(2.3) × as long as thick, 0.36–0.45(0.44) × as long as UID.

Pronotum with anterior declivity not distinctly differentiated from dorsum, nearly vertical; lateral margins slightly convergent anteriorly; shoulder narrowly rounded; junction between dorsal and lateral faces narrowly rounded, not carinate; posterior margin broadly angulate medially. Metanotum with several strong irregular striae laterally. Propodeum distinctly convex with posterior declivity not distinctly differentiated ( Fig. 5 C), median groove not always impressed.

Fore wing fasciae weak, not distinctly defined ( Fig. 9 F). Fore wing SMC2 receiving crossvein 1m-cu at basal 0.59–0.70(0.70). SMC3 1.1–1.6(1.3) × as long as SMC2 on vein M, 0.72–1.2(0.85) × as long as SMC2 on vein Rs, narrowed on vein Rs by 0.40–0.56(0.48) × its length on vein M, receiving crossvein 2m-cu at basal 0.31– 0.42(0.31). Crossvein 2rs-m gently curved. Crossvein 3rs-m strongly curved medially. Crossvein cu-a usually originating at fork of M+CuA.

Tarsal claws with small tooth submedially ( Fig. 5 D).

T1 not petiolate basally ( Fig. 8 D). S1 reticulato-rugulose medially, longitudinally rugulose apically. Transverse groove of S2 angulate or subangulate medially. S6 longitudinally carinate.

Description. MALE (hitherto unknown). Length: body 3.4–5.6 mm; fore wing 3.1–4.3 mm. Head, pronotum and mesonotum slightly, remainder of body more strongly polished. Body and legs black; following bright to dark brown: apical half of mandible, palpi, pedicel and flagellum beneath, lateral and posterior margins of pronotum, tegula, laterotergum, lateral and posterior margins of metasomal terga and sterna and each segment of legs apically; following yellowish brown: scape beneath, fore tibia, fore tarsomeres 1–4, tibial spurs and sometimes mid and hind tarsomeres 1–4. Fore wing fasciae almost obsolete.

Head and mesosoma finely and densely punctate (frons more sparsely punctate than in female, interspace of punctures alutaceous). Propodeum with strong dense punctures, those being sparser anteriorly than posteriorly, with indistinct irregular transverse rugulae posteriorly. Metasomal terga with fine punctures, those becoming weaker posteriorly.

Body with grayish white pubescence, that being long and dense on lower frons, propleuron, mesopleuron, mesosternum, propodeum posterolaterally and coxae ventrally.

Head in frontal view 1.1–1.2 × as wide as long. Vertex between eye tops more strongly convex than in female. Ratio of UID:MID:LID = 7.9–8.9:10:8.3–8.9. Half of MID 1.5–1.8 × eye width. Ocelli large; ocellar triangle right- or obtuse-angled, strongly raised. Ratio of POL:OOL = 1:0.64–0.90. Oblique furrow running from lateral ocellus to eye distinct. Clypeus 2.2–2.5 × as wide as long; apical margin weakly emarginate medially. Gena in dorsal view more developed than in female, in profile 0.5–0.6 × eye width. Ratio of F1 and F2 = 1:0.92–1.2; F1 1.3–1.9 × as long as thick and 0.21–0.33 × as long as UID.

Pronotum with lateral margins strongly narrowing anteriorly; juncture between dorsal and lateral faces weakly carinate. Mesoscutum strongly reflexed posterolaterally. Discs of scutellum and metanotum slightly raised above level of mesoscutum and propodeum. Metapostnotum not completely invaginated, subangularly emarginate posteromedially with a few transverse striae. Propodeum gradually narrowing posteriorly, strongly raised immediately outside stigma.

Fore wing SMC2 receiving crossvein 1m-cu at basal 0.57–0.75. Fore wing SMC3 0.95–1.6 × as long as SMC2 on vein M, 0.64–1.3 × as long as SMC2 on vein Rs, narrowed on vein Rs by 0.44–0.61 × its length on vein M, receiving crossvein 2m-cu at basal 0.38–0.59.

Tarsal claws with small vertical tooth preapically, that being narrower than apical portion of main shaft.

Transverse groove on S2 triangular as in female. Paired lateral hooks on S6 small, triangular and directed inward with small blunt claw-like projection ( Fig. 5 E); posterior margin of S6 between hooks subtriangularly emarginate. Exposed portion of subgenital plate in profile narrow elliptic, truncate and slightly emarginate apically ( Fig. 5 F), thin ( Fig. 5 E) with a few minute setae on lateral face; basal portion of subgenital plate squarely extended laterally with comparatively large process directed posterolaterad ( Fig. 8 G, arrow).

Genitalia ( Fig. 5 G): paramere roundly produced outward near base, with numerous setae on ventral face and lateral margin; digitus volsellaris triangularly produced inward near base, slender and thin; parapenial lobe slender; aedeagus not extending beyond apices of digitus volsellaris and parapenial lobe.

Material examined. JAPAN. Hokkaido: 1♀, Hyakumatsu-zawa, Sapporo, 16–23.vi.1998 (K. Mizota, M. Maruyama, T. Hironaga & A. Ohkawa). 1♂, same locality and collector, 23–30.vi.1998. 1♀, same locality and collector, 18.ix–1.xi.1998. Honshu: 1♀, Kaizawa, Kita-ibaraki-shi, Ibaraki Pref., 11–24.ix.2002 (H. Goto) (M.T.). 1 ♀, Ogawa, Kita-ibaraki-shi, Ibaraki Pref., 7.v.2002 (Emerg.) (K. Okabe). 1 ♀, Nishi-kodaira, Kodama-machi, Saitama Pref., 23.ix.1996 (A. Shimizu). 1 ♀, Urayama, Chichibu, Saitama Pref., 1.viii.1979 (T. Nambu). 1 ♀, Nagakubo, Ogano-machi, Saitama Pref., 31.viii.1988 (A. Shimizu). 1 ♀, Nakayama, Hachioji, Tokyo, 21.v.2003 (A. Shimizu). 1 ♀, Kami-yugi, Hachioji, Tokyo, 11.v.2004 (A. Shimizu). 1 ♀, Shimo-yugi, Hachioji-shi, Tokyo, 21.v.2001 (A. Shimizu). 1 ♀, same locality and collector, 14.v.2004. 1 ♀, Shimoyama, Izumi-mura, Fukui Pref., 23.x.1982 (C. Nozaka). 3 ♀ (020212 -5, -6. -8) 1 ♂ (020212 -7), Kamikoike, 1000 m, Ôno-shi, Fukui Pref., 3.v.2009 (Emerg.) ( Y. Nishimoto). 1 ♀ (020212 -8), same locality and collector, 5.v.2009. 1 ♀, Tani, Kitadani-cho, Katsuyama-shi, Fukui Pref., 9.vi.2001 ( Y. Haneda). 1 ♀, Mt. Ochi-san, Fukui-shi, Fukui Pref., 29.vi.2001 (H. Kurokawa). 1 ♀ (020513 -1) 1 ♂ (020513 -1), Kanazawa, 1300 m, Chino-shi, Nagano Pref., 5.v.2005 ( Y. Nishimoto). 1 ♀, Neba-mura, 940 m, Nagano Pref., 5.v.2010 (Emerg.) ( Y. Nishimoto). 1 ♀ (080112 -3), Komamba, 380 m, Nakatsugawa-shi, Gifu Pref., 5.v.2010 (Emerg.) ( Y. Nishimoto). 1 ♂ (080112 -3), same locality and collector, 8.v.2010 (Emerg.). 1 ♀ (080112 -3), same locality and collector, 11.v.2010 (Emerg.). 1 ♀ (140108 -3), Kubohara, 600 m, Yamaoka-cho, Ena-shi, Gifu Pref., 14.v.2010 (Emerg.) ( Y. Nishimoto). 1 ♀ (140108 -3) 1 ♂ (140108 -3), same locality and collector, 15.v.2010 (Emerg.). 1 ♂, Mukunomi, 440 m, Misato-cho, Ena-shi, Gifu Pref., 12.v.2010 ( Y. Nishimoto). 1 ♂ (G340310-1), Kami-aso, 260 m, Hichiso-cho, Gifu Pref., 6.v.2009 (Emerg.) ( Y. Nishimoto). 1 ♀ (G340310-1), same locality and collector, 9.v.2009 (Emerg.). 1 ♀, Shirakawago, Shirakawamura, Gifu Pref., 8,11. ix.1998 (A. Shimizu). 1 ♀, Yawata, Decid. forest, 650 m, Asahi-cho, Aichi Pref., 18– 28.vii.1998 (M. Ozawa) (M.T.). 1 ♂, Yuya-cho, Toyota-shi, Gifu Pref., 5.v.2009 (Emerg.) ( Y. Nishimoto). 2 ♀ (A1415-4, -6) 1 ♂ (A1415-4), Kirihata, 320 m, Takaraduka-shi, Hyogo Pref., 19.vii.2012 (Emerg.) ( Y. Nishimoto). 3 ♀ (B79-1, -2, -3) 1 ♂ (B79-2), same locality and collector, 25.vii.2013 (Emerg.). 1 ♂, Nishinomiya-shi, Hyogo Pref., 5.v.2000 (T. Endo). 1 ♂, Kimikage-cho, 290 m, Kita-ku, Kobe-shi, Hyogo Pref., 5.v.2006 (Emerg.) ( Y. Nishimoto). 1 ♀, Kami-kamogawa, 280 m, Yashiro-cho, Kato-shi, Hyôgo Pref., 5.v.2006 (Emerg.) ( Y. Nishimoto). 1 ♂ (120412 -7), Araki, 50 m, Izushi-cho, Toyooka-shi, Hyogo Pref., 11.v.2009 (Emerg.) ( Y. Nishimoto). 1 ♀ (120412 -7), same locality and collector, 12.v.2009. 1 ♀ (330220-3), Kawakami, 390 m, Kamikawa-cho, Hyogo Pref., 7.v.2008 (Emerg.) ( Y. Nishimoto). 1 ♂ (330220-4), same locality and collector, 15.v.2008 (Emerg.). 2 ♀ (300519 -1), Izasa, 240 m, Kamikawa-cho, Hyogo Pref., 5.v.2008 (Emerg.) ( Y. Nishimoto). 1 ♂ (300519 -1), same locality and collector, 16.v.2008 (Emerg.). 2 ♀ (270407 -4), Ochi, Kamikawa-cho, Hyogo Pref., 5.v.2008 (Emerg.) ( Y. Nishimoto). 1 ♂ (270407 -4), same locality and collector, 14.v.2008 (Emerg.). 1 ♀ (270407 -4), same locality and collector, 16.v.2008 (Emerg.). 1 ♀, Ôsugi, 154 m, Ôya-cho, Yabu-shi, Hyogo Pref., 11.v.2009 (Emerg.) ( Y. Nishimoto). 3 ♀ (370416-2), Tarumi, 100 m, Ôya-cho, Yabu-shi, Hyogo Pref., 7.v.2009 (Emerg.) ( Y. Nishimoto). 1 ♂ (370416-3), same locality and collector, 8.v.2009 (Emerg.). 1 ♀ (370416-3), same locality and collector, 9.v.2008. 2 ♀ (370416-2, -3), same locality and collector, 10.v.2009. 1 ♀ (300308 -3) 1 ♂ (300308 -2), Kanaya, 39 m, Onsen-cho, Hyogo Pref., 5.v.2005 (Emerg.) ( Y. Nishimoto). 1 ♀, Kurotani, Yuki-cho, Hiroshima Pref., 7– 13.viii.1995 (A. Morimoto) ( Y.P.T.). Kyushu: 1 ♀, Mt. Hikosan, Fukuoka Pref., 5.v.1937 (K. Yasumatsu). 1 ♀, same locality and collector, 25.v.1937.

Distribution. Japan (Hokkaido, Honshu and Kyushu).

Biology. Reared from bamboo trap nests. Brood-parasitizes Deuteragenia sperconsa , D. conspersa , D. inconspersa and D. bifasciata ( Shimizu et al. 2012) . Appeared in early May to late October.

Figures

FIGURE 5. Nipponodipogon nagasei. (A – D, holotype, ♀; E – G, ♂, Japan). A. head, frontal view; B. head, dorsal view; C. mesosoma, lateral view; D. outer claw of right hind tarsus; E. S 6 and subgenital plate, ventrolateral view; F. subgenital plate, lateral view; G. genitalia (left half, ventral view; right half, dorsal view). Scale lines: 0.5 mm.

FIGURE 6. Nipponodipogon rossicus. (A – F, holotype, ♀; G – J, paratype, ♂, Russian Far East). A. head, frontal view; B. head, lateral view; C, G. head, dorsal view; D. mesosoma, lateral view; E. T 1, dorsal view; F. S 1 and S 2, ventral view; H. S 6, ventral view; I. subgenital plate, lateral view; J. genitalia (left half, dorsal view; right half, ventral view). Scale lines: 0.5 mm.

FIGURE 8. Nipponodipogon, female head, anterolateral view (A, B), female T 1, dorsal view (C – E) and male subgenital plate, ventral view (F – I). A. N. mandibularis, paratype, Japan. B. N. nagasei, Japan. C. N. iwatai, Japan; D. N. nagasei, Japan; E. N. sudai sp. nov., paratype, Japan; F. N. iwatai, Japan; G. N. nagasei, Japan; H. N. rossicus, paratype, Russian Far East; I. N. sudai, paratype, Japan. Scale lines: 0.5 mm for A – E, 0.25 mm for F – I.

FIGURE 9. Nipponodipogon, fore and hind wings. A. N. hayachinensis, ♀, Japan; B. N. iwatai, holotype; C, D. N. kurilensis, holotype; E. N. mandibularis, holotype; F, G. N. nagasei, holotype; H, I. N. rossicus, holotype. J. H. sudai sp. nov., paratype, ♀, Japan; K. H. sudai, paratype, ♂, Japan. Scale lines: 1.0 mm.