Probles (Euporizon) ecarinata ( Khalaim, 2005 ) Khalaim, 2022

Khalaim, Andrey I., 2022, Tersilochinae (Hymenoptera: Ichneumonidae) of Japan: two new species, a new combination and 23 new country records, Zootaxa 5174 (4), pp. 301-330 : 312

Probles (Euporizon) ecarinata ( Khalaim, 2005) , comb. nov.

( Figs 29–35 )

Material examined. JAPAN. Hokkaido I.: 2 ♂ ( NIAES) Tomakomai City, Hokkaido University Experimental Forest , 18–20. VI.1980, coll. H. Takemoto. Honshu I.: 1 ♀ ( ZISP) Niigata Pref., Kurokawa-mura , Tainai, 3– 4. VI.1980, coll. K. Maetô. Shikoku I.: 1 ♀ ( NIAES) Ehime Pref., Mt. Ishizuchi-san , 1300–1982 m, 5.VIII.1983, coll. K. Konishi. Kyushu I.: 1 ♀ ( NIAES) Miyazaki Pref., Takaharu-machi, Miike, 8. V.1983, coll. K. Konishi. 1 ♂ ( NIAES) Kagoshima Pref., Yakushima Is., Shirataniunsuikyô, 680 m, 15. V.1983, coll. I. Kanazawa et al.

Variation. Antenna with 19 flagellomeres in female and 20–22 flagellomeres in male. Dorsolateral area of propodeum sometimes very shallowly sculptured and dull ( Fig. 35 ).

Remarks. This species was originally described in the genus Diaparsis from Primorsky Reg. of Russia ( Khalaim 2005) and it possesses the propodeum with clearly delimited rectangular basal area (basal longitudinal carinae sometimes indistinct) ( Fig. 35 ). Such areolation of the propodeum is typical for the genus Probles , while in the genus Diaparsis propodeum is almost always with a single median longitudinal carina (basal keel). Other important characters, e.g. the S-curved foveate groove of mesopleuron ( Fig. 32 ), first tergite with postpetiole strongly widened at base and much broader than the petiole ( Fig. 33 ), second tergite with elongated thyridial depression ( Fig. 33 ), and slender ovipositor with weak dorsal subapical depression ( Figs 29, 30 ) also well correspond with the genus Probles . This genus is characterized by the glymma joining by furrow with the lower side of postpetiole, but in D. ecarinata the glymma is isolated ( Fig. 32 ). In spite of this, I consider that this species belongs to Probles (comb. nov.) because the furrow between glymma and lower side of postpetiole sometimes indistinct or vanishing in other species of Probles and in the genus Stethantyx Townes which has a similar structure of the first tergite.

Distribution. Russian Far East; in Japan known from Hokkaido, Honshu, Shikoku, Kyushu and Yakushima islands. First record from Japan.

Figures

FIGURES 29–33. Probles ecarinata, holotype (29), non-type specimens from Japan (30–33), ♀ (all except 31) and ♂ (31): 29–31—habitus, lateral; 32—head, mesosoma and base of metasoma, lateral; 33—postpetiole of first tergite and second tergite, dorso-lateral.

FIGURES 34–38. Probles ecarinata, ♀ (Japan): 34—head and mesoscutum, dorsal; 35—propodeum, dorsal. Tersilochus gangwonus, ♀: 36—habitus, lateral (Khabarovsk Reg.); 37—head, front (Japan); 38—mesosoma and base of metasoma, lateral (Khabarovsk Reg.).