Aniseres baikalensis Humala, 2007

Watanabe, Kyohei, 2023, Taxonomic and Zoogeographic Notes on Japanese Orthocentrinae (Hymenoptera, Ichneumonidae), with Descriptions of Four New Species, Bulletin of the Kanagawa Prefectural Museum (Natural Science) 52, pp. 7-44 : 9-10

Aniseres baikalensis Humala, 2007

[New SJN: Baikal-hae-himebachi]

( Figs. 1A–C )

Aniseres baikalensis Humala, 2007: 695 .

Diagnosis. Clypeus tinged with yellow except for dorsal margin, its coloration clearly differed from face ( Fig. 1B ). Antenna with 19–20 flagellomeres. FL I 3.0 (female) and 3.3 (male) times as long as maximum depth in lateral view. Lateromedian longitudinal carina of propodeum well developed. Fore wing without vein rs-m. Distal abscissa of vein M of fore wing distinct and pigmented. Hind coxa reddish yellow ( Figs. 1A, C ). Ovipositor straight ( Fig. 1A ). Ovipositor sheath 1.0 times as long as hind tibia and ca. 0.3 times as long as fore wing. Body length 3.6–4.4 mm.

Material examined. JAPAN: KPM-NK 89765 : F , Nagano Pref., Outaki Vil., Mt. Ontake-san , 25. VI. – 15. VII. 2015, S. Shimizu leg. (MsT) . RUSSIA: ZISP, F (holotype), Buryatia, pos. Dungan , 13 km Kudara Somone, 9. VIII. 1970, D. R. Kasparyan leg.

Distribution. Japan (Honshu) and Far East Russia.

Remarks. This is the first record of this species from Japan. Japanese female ( KPM-NK 89765) has 20 segmented flagellum (19 in holotype). In many orthocentrine species, the number of antennal segments frequently varied in number and thus I conclude that it is an intraspecific variation. This species can be easily distinguished from An. subarcticus by the yellowish clypeus (not yellow in An. subarcticus ).

Figures

Fig. 1. Aniseres baikalensis Humala, 2007 (KPM-NK 89765, female) ― A: lateral habitus; B: head, frontal view; C: head, mesosoma, and metasoma, dorsolateral view.