Megaplectes monticola dentatus Uchida, 1930

Megaplectes monticola dentatus Uchida, 1930 View in CoL

[SJN: Futotsuno-togari-himebachi]

( Figs. 41A–G, 42A–D, 76E, J, 79K)

Megaplectes monticola var. dentatus Uchida, 1930: 304 View in CoL . Megaplectes monticola dentatus View in CoL : Townes & Gupta, 1962: 222. Megaplectes monticola View in CoL : Uchida, 1936b: 1.

Materials examined. JAPAN: [ Hokkaido] KPM-NK 103056 , M, Sapporo City, Teinekanayama , 19. VII. 2012, M. Ito leg. ; KPM-NK 103057 , F, ditto, 27. VIII. 2010 ; KPM-NK 103058 , F, Engaru Town, Urashimanai path, 13. VII. 2012, M. Ito leg. [ Honshu ] : KPM-NK 91325 , F, Shizuoka Pref., Shizuoka City, Umegashima, Abe-toge , 3. VIII. 2015, T. Sasai leg. ; KPM-NK 103055 , M, Toyama Pref., Toyama City, Arimine, Inonedani , 14–21. VII. 2009, M. Watanabe leg. (MsT) ; KPM-NK 103059 , M, Nagano Pref., Kamikochi , 24–25. VII. 1957 , R. Ishikawa leg.; KPM-NK 81279 , F, ditto, 4. VIII. 1957 ; KPM-NK 103060 , F, Nagano Pref., Ueda City, Sugadaira-kogen , 22. VII. – 8. VIII. 2014, S. Shimizu leg. (MsT) ; KPM-NK 103061–103065 , 1 F & 4 M, Tochigi Pref., Kuriyama

Vil., Kinunuma , 19. VII. – 1. VIII. 2004, H. Makihara leg. (MsT) . RUSSIA: SEHU, 1F ( lectotype), Sachalin, Ichinosawa , 12. VIII. 1928, H. Furukawa leg.

Description. Female (n = 7). Body punctate and polished; covered with setae; body length 13.5–20.0 mm.

Head 0.6–0.65 (HT: 0.6) × as long as wide in dorsal view. Clypeus 2.25–2.4 × as wide as long; slightly convex in lateral view; densely punctate; punctures partly united each other; lower margin subtruncate or sometimes slightly concave medially in frontal view, blunt in lateral view. Face 0.4 × as long as minimum width; weakly convex medially; densely punctate, ISP matt; punctures large and shallow, its margin not clearly defined. Frons largely weakly concave above antennal sockets; usually with single median horn ( Figs. 76E, J); largely irregularly rugose medially, punctate laterally; horn projected frontwards. POL 0.8–1.1 × as OD. OOL 1.25–1.6 × as OD. Gena and occiput densely punctate. Dorsal profile of gena nearly straight in dorsal view; width gradually narrowing posteriorly ( Fig. 41C). Occipital carina complete. Malar space 1.1–1.25 × as long as basal width of mandible. Mandible flat at base; lower tooth equal in length of upper tooth. Antenna with 37–42 flagellomeres; apical part flattened below and tapped to slender apex. FL I 2.9–3.15 × as long as maximum depth in lateral view, 1.45–1.5 × as long as FL II.

Mesosoma densely punctate ( Fig. 41D). Epomia short; dorsal end situated between collar and dorsal margin of pronotum. Mesoscutum with short and weak notaulus. Mesopleuron with smooth area around speculum; punctures partly united into groove-like foveola. Epicnemial carina present laterally and ventrally. Sternaulus deep in anterior 0.66 of mesopleuron. Metapleuron reticulate rugose; without juxtacoxal carina. Propodeum largely reticulate rugose; anterior transverse carina absent ( Fig. 41F); posterior transverse carina largely absent or partly present; lateromedian longitudinal carina largely indistinct or partly present; lateral longitudinal carina partly present or complete; pleural carina complete; area superomedia indistinct or obtusely defined; apophysis strong and sharply pointed; spiracle oval. Fore wing length 12.5–16.0 mm. Areolet as long as maximum width; width gradually narrowing anteriorly; received vein 2m-cu at near middle ( Fig. 41E). Fore wing vein 1cu-a interstitial to or slightly postfurcal to vein M&RS ( Fig. 41E). Nervellus subvertical; intercepted near posterior to middle ( Fig. 41E). Hind femur densely punctate; 5.7–6.7 × as long as maximum depth in lateral view. Tarsal claws simple.

Metasoma finely punctate. T I 1.8–2.1 × as long as maximum width; smooth anteriorly, matt medially, densely punctate and foveolate posteriorly ( Fig. 41G); latero-median carina largely present except for apical part indistinct; dorso-lateral carina present except for apex. T II 0.65 × as long as maximum width. Thyridium present; close to anterior margin of T II; depressed; ca. 3.0 × as wide as length. Ovipositor sheath 0.6–0.7 × as long as hind tibia, 1.1–1.3 × as long as T I. Ovipositor straight or slightly decurved; apex sharp and with some minute teeth dorsally; apex of lower valve with teeth ( Fig. 79K).

Colouration ( Figs. 41A–G). Body (excluding wings) black to blackish-brown. Setae brown to blackish-brown. Subapical part of mandible tinged with reddish-brown. FL VI to FL X (or XI or XII) with white markings. Ventral surface of flagellum, fore and mid legs, membranous parts of metasomal sternites partly tinged with reddish-brown. Metasomal tergites sometimes slightly tinged with dark blue refection. Apex of ovipositor sheath dark brown. Ovipositor reddish-brown. Wings dark brownish-hyaline. Veins and pterostigma blackish-brown.

Male (n = 7). Similar to female ( Figs. 42A–D). Clypeus 2.4–2.6 × as wide as long. Face 0.4–0.45 × as long as minimum width. Malar space 0.8–0.9 × as long as basal width of mandible. Antenna not flattened below and tapped; with tyloids on FL XIII to FL XXII ( Fig. 42D). FL I 2.4–2.7 × as long as maximum depth in lateral view, 1.15–1.35 × as long as FL II. Propodeal carinae partly present. OOL 1.0–1.5 × as OD. T I 1.95–2.85 × as long as maximum width. T II 0.9–1.05 × as long as maximum width. Face with a pair of yellow markings along orbit. FL IX (or X) to FL XIV (or XV) with white markings.

Distribution. Japan ( Hokkaido, Honshu, and Shikoku), China, Korea, Russia, Canada, and USA.

Bionomics. Unknown.