Phradis gibbus (Holmgren, 1860)

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 : 307-308

Phradis gibbus (Holmgren, 1860)

( Figs 10–19 )

Material examined. JAPAN. Hokkaido I.: 1 ♀ ( ZISP) Sapporo, Usubetsu, Malaise trap, 29.IV–24. V.2012, coll. N. Kuhara.

Diagnosis. Head and mesosoma densely granulate, dull, impunctate. Head roundly constricted behind eyes in dorsal view ( Fig. 15 ); lower part gena distinctly widened in lateral view ( Fig. 14 ). Eye with short setae ( Fig. 15 ). Clypeus lenticular. Mandible robust, with upper tooth somewhat longer than the upper tooth. Flagellum lenticular, with 19 flagellomeres ( Fig. 12 ). Malar space distinctly longer than basal mandibular width ( Fig. 14 ). Notaulus absent ( Figs 14 , 15 ). Foveate groove of mesopleuron indistinct, slightly impressed, with weak transverse wrinkles ( Fig. 14 ). Propodeum with moderately broad rectangular basal area which is sometimes indistinct ( Fig. 16 ). Fore wing ( Fig. 13 ) with pterostigma broad, metacarpus (R1) short and not reaching tip of the wing, and vein 2m-cu strongly antefurcal. First tergite distinctly striate laterally ( Fig. 17 ). Second tergite about 1.5× as long as anteriorly broad ( Fig. 18 ). Thyridial depression 1.5–2.0× as long as broad, with posterior end rounded ( Fig. 18 ). Ovipositor slender, weakly upcurved, with apical part very thin, needle-shaped ( Fig. 19 ); sheath 1.25× as long as first tergite.

Antenna, head (except lower half of clypeus and mandible), mesosoma, all coxae and first metasomal segment brownish black to black; metasoma posterior to first tergite and all legs (except coxae) brown to dark brown ( Fig. 10 ).

Distribution. Europe, Russian Far East, China (Shanxi); in Japan known from Hokkaido I. First record from Japan.

Figures

FIGURES 10–14. Phradis gibbus, ♀ (Japan): 10—habitus (without wings), lateral; 11—head, front; 12—head with antenna, lateral; 13—fore wing; 14—head and mesosoma, lateral.

FIGURES 15–19. Phradis gibbus, ♀ (Japan): 15—head and mesoscutum, dorsal; 16—propodeum, dorso-postero-lateral; 17— base of metasoma, lateral; 18—tergites 2 and 3, dorsal; 19—apex of metasoma with ovipositor, lateral.