Javra coreensis ( Uchida, 1930 )

Watanabe, Kyohei & Taniwaki, Tooru, 2018, Taxonomic Study of the Genera Förster, 1850, and Cameron, 1903 (Hymenoptera, Ichneumonidae, Cryptinae) associated with (Hymenoptera, Tenthredinidae), with Description of a New Species, Bulletin of the Kanagawa Prefectural Museum (Natural Science) 47, pp. 73-84 : 81-82

Javra coreensis ( Uchida, 1930)

( Figs 4A–C , 5A–E )

Acanthocryptus coreensis Uchida, 1930: 330 .

Javra sp. Taniwaki & Watanabe, 2012: 6. In part (female), misident.

Description. Female (n = 35). Body 5.0– 7.5 mm. Body polished, mat, covered with silver setae.

Head 0.6 times as long as wide. Clypeus 0.4–0.5 times as long as wide, weakly convex in lateral view ( Fig. 5A ), covered with large, sparse punctures dorsally, smooth ventrally. Face 0.4–0.45 times as long as wide, weakly convex in lateral view ( Fig. 5A ), punctate. Frons weakly concave, punctate except for smooth area above each antennal socket. OOL 1.0–1.2 times as long as POL. Occipital carina complete, its lower end connected with hypostomal carina distant from base of mandible. MSL 1.2–1.3 times as long as BWM. Antenna with 22–24 flagellomeres, F1 1.2–1.3 times as long as F2. F2 3.8–4.5 times as long as maximum depth in lateral view.

Mesosoma. Pronotum without epomia. Mesonotum with notauli anteriorly. Scutellum weakly convex, covered with sparse punctures. Mesopleuron covered with irregular to longitudinal rugae, without a smooth area around episternal scrobe. Upper end of epicnemial carina closed to anterior margin of mesopleuron. Subalar prominence convex. Lower division of metapleuron with a complete juxtacoxal carina. Propodeal carinae complete or sometimes lateral section of anterior transverse carina and median section of lateral longitudinal carinae partly indistinct ( Fig. 5D ). Propodeal apophysis well developed ( Fig. 4A ). Fore wing 5.5–7.0 mm. Anterior end of vein cu-a of fore wing opposite or slightly distad from posterior end of vein Rs+M. Lateral sides of areolet parallel ( Fig. 5B ) or weakly convergent anteriorly. Vein 1-cu of hind wing more than 6.0 times as long as vein cu-a of hind wing. Legs covered with gold setae. Hind femur 5.7–6.3 times as long as maximum depth in lateral view. Tarsal claws simple.

Metasoma. T1 2.05–2.35 (usually 2.1–2.2) times as long as maximum width, with median dorsal carinae except for postpetiole, with dorsolateral carinae except for apex ( Fig. 5D ). T2 0.65–0.75 times as long as maximum width. Ovipositor sheath 0.7–0.8 times as long as hind tibia. Apex of ovipositor as Fig. 5E , basal two teeth longer than apical teeth.

Colouration ( Figs 4A–C ). Body (excluding wings) black to blackish brown, except for: white band of flagellum (usually F5–F9); ventral surface of apical part of flagellum usually with a large reddish-brown area; mandible partly tinged with yellowish-brown; fore tibial spur yellowish-brown; base and apex of all legs and base of all tibiae more or less tinged with reddish-brown to yellowish-brown; posterior margin of each metasomal tergites sometimes narrowly tinged with reddish-brown; ovipositor reddish-brown. Wings hyaline, with dark brown to blackish-brown veins and pterostigma except for yellow wing base.

Male. Unknown.

Materials examined. JAPAN: 1 F, Kanagawa Pref., Kiyokawa Vil., Miyagase, Mt. Tanzawasan , Tennoji-one 1350 m alt ., 8. IV. 2009 (coll. cocoon of Fagineura crenativora ), 1. V . 2009 (em. from the cocoon), T. Taniwaki leg. ( KPM-NK 5006654 ); 1 F, same locality and collector, 15. VI . 2013 ( FIT) ( KPM-NK 5004376 ); 3 F, same locality and collector, 20. VI . 2013 ( KPM-NK 5004356 , 5004358 , 5004377 ); 1 F, same locality and collector, 29. VI . 2013 ( KPM-NK 5004365 ); 3 F, Kanagawa Pref., Kiyokawa Vil., Miyagase, Mt. Tanzawasan 1550 m alt., 20. VI . 2013 , T. Taniwaki leg. ( FIT) ( KPM-NK 5004361 , 5004380 , 5004382 ); 4 F, same locality and collector, 29. VI . 2013 ( KPM-NK 5004357 , 5004360 , 5004364 , 5004381 ); 3 F, same locality and collector, 29. VI . 2013 ( KPM-NK 5004359 , 5004373 , 5004375 ); 6 F, Kanagawa Pref., Yamakita Town, Kurokura, Mt. Hinokiboramaru 1550 m alt., 23. V . 2013 , T. Taniwaki leg. ( FIT) ( KPM-NK 5004353–54 , 5004367 , 5004370 , 5004372 , 5004374 ); 1 F, same locality and collector, 14. VI . 2013 ( KPM-NK 5004369 ); 2 F, same locality and collector, 23. VI . 2013 ( NIAES); 2 F, same locality and collector, 28. VI . 2013 ( KPM-NK 5004366 , 5004368 ); 6 F, same locality and collector, 6. VII. 2013 ( KPM-NK 5004350–52 , 5004362–63 , 5004371 ) . KOREA: 1 F (lectotype), Sambo , 29. VII. 1922, T. Uchida leg. ( SEHU) .

Distribution. Japan (Honshu) and Korea.

Bionomics. Host is Fagineura crenativora (rare species in the parasitoid complex of the sawfly) ( Taniwaki & Watanabe, 2012). Adult emerged from host cocoon ( Taniwaki & Watanabe, 2012).

Remarks. This is the first record from Japan. F. crenativora is also the first host record of this species.

Figures

Fig. 4. Javra coreensis (Uchida, 1930), female (KPM-NK 5004375). A, lateral habitus; B, mesonotum, dorsal view; C, T2 and T3, dorsolateral view.

Fig. 5. Javra coreensis (Uchida, 1930), female (KPM-NK 5004375). A, head and antenna, lateral view; B, areolet of right fore wing; C, T1, lateral view; D, propodeum and T1, dorsal view, surface sculptures omitted except for left half of area basalis, area superomedia, area externa, area dentipa- ra, and area postero; E, apical part of ovipositor, lateral view.