Aneuclis secunda ( Khalaim, 2011 ) Khalaim, 2018

Khalaim, Andrey I., 2018, The genera Allophrys Förster and Aneuclis Förster (Hymenoptera: Ichneumonidae: Tersilochinae) of Vietnam, Zootaxa 4378 (3), pp. 414-428 : 427

Aneuclis secunda ( Khalaim, 2011) , comb. nov.

( Figs 20–25 )

Remarks. Occipital carina distinct laterally and widely absent dorsally; frons and vertex with shallow granulation, dull or weakly shining. Both sexes with antennal flagellum very slender, with 17–18 flagellomeres in female and 17–19 flagellomeres in male. Flagellomeres 2–4 in female 2.2× to almost 3.0× as long as broad. Male flagellum usually stronger tapered towards apex than in female. Malar space 0.6–0.8× as long as basal mandibular width. Propodeum with basal keel usually weak but distinct, sometimes partly (or completely) substituted by weak irregular wrinkles or furrow, 0.8–1.0× as long as apical area. First metasomal segment with petiole striate dorsally and laterally; glymma distinct, situated in apical about 0.7 of tergite, isolated or with very fine groove towards ventral side of postpetiole, never reaching ventral side of postpetiole. Ovipositor short, straight, with upper valve expanded at apex ( Fig. 25 ). Examined samples from RMNH collection are mostly somewhat larger than the holotype.

The species is similar to A. achterbergi as both have slender flagellum, widely interrupted dorsally occipital carina, notaulus with strong wrinkle, deep and long foveate groove on mesopleuron, long metacarpus (R 1) and long basal keel of propodeum, but differs from this species by longer temple, less slender antennal flagellum with greater number of flagellomeres ( Fig. 21 ), striate dorsally and laterally petiole of first metasomal tergite ( Figs 23, 24 ), and short and straight ovipositor ( Fig. 25 ).

Material examined. Northwest Vietnam: 5 ♂ (4 ♂ in RMNH, 1 ♂ in ZISP) Tonkin, Lai Châu Prov., Hoang Lien National Park [Nature Reserve since 2006], 15 km W of Sa Pa, 1900 m, Malaise traps, 15–21.X.1999, coll. C. v. Achterberg . 1 ♀ ( RMNH) Tonkin, Lai Châu Prov., Hoang Lien National Park [Nature Reserve since 2006], 10 km SW of Sa Pa , 1550 m, Malaise traps, 22–29.X.1999, coll. C. v. Achterberg . Central Vietnam: 1 ♀ ( RMNH) Ha Tinh Prov., Vu Quang National Park, N 18°17ʹ41ʺ, E 105°25ʹ42ʺ, 106 m, Malaise trap, 22.IX–6.X.2009, coll. C. v. Achterberg . South Vietnam: 8 ♀, 1 ♂ (7 ♀ and 1 ♂ in RMNH, 1 ♀ in ZISP) Lam Dong Prov., Bidoup Nulba National Park, near Da Lat, 1600–1700 m, Malaise trap, 11–19.X.2005, coll. C. v. Achterberg & R. de Vries.

Distribution. Oriental species: North to South Vietnam.

Figures

FIGURES 19–25. Aneuclis pumilus, ♀: 19—apex of fore wing.Aneuclis secunda, ♀: 20—holotype, habitus,lateral; 21—head with antenna, lateral; 22—fore wing; 23—mesosoma and metasoma; 24—propodeum and base of metasoma, dorsal; 25—apex of metasoma with ovipositor.