Diaparsis (Diaparsis) lompobattanga Khalaim, 2022

Khalaim, A. I., 2022, New species of Oriental Tersilochinae (Hymenoptera: Ichneumonidae), with remarks on sexual dimorphism in the genus Allophrys Förster, 1869, Russian Entomological Journal 31 (1), pp. 53-61 : 55-58

Diaparsis (Diaparsis) lompobattanga Khalaim , sp.n.

Figs 12–20 .

MATERIAL EXAMINED. Holotype: ♀ ( EUM) , Indonesia, South Sulawesi, Gowa Prov. [Regency], “Mt. (Gunung) Lompobattang”, 5°23´26´´S, 119°56´01´´E, 2000 m, “5 Malaise traps ”, 16.I–27.II.2012, coll. K. Takasuka. Paratypes. Same data as holotype, 3 ♀♀ (2 in EUM, 1 in ZISP) .

COMPARISON. The new species differs from its Oriental and Oceanic congeners by the combination of the clavate antennal flagellum with transverse subapical flagellomeres ( Fig. 18 ), propodeum with long basal keel and broad apical area ( Fig. 16 ), and a long ovipositor with sheath 4.0 times longer than the first tergite ( Fig. 12 ). Diaparsis lompobattanga sp.n. also possesses subapical finger-shaped structures on the outer surface of flagellomeres 1–5 ( Fig. 18 ), while in most other Diaparsis species the two proximal flagellomeres lack finger-shaped structures.

DESCRIPTION. Female. Body length 4.0 mm. Fore wing length 3.1 mm.

Head, in dorsal view, roundly constricted posterior to eyes ( Fig. 14 ); gena 0.7 times as long as eye width. Eyes glabrous. Clypeus 2.3 times as broad as long, in front view lenticular ( Fig. 13 ), very weakly convex, separated from face by weak impression, polished and impunctate in lower 0.2– 0.3, finely and sparsely punctate on slightly scabrous, nearly smooth background in upper 0.7–0.8. Mandible moderately robust, tapered in basal half; upper tooth almost twice as long as lower. Malar space as long as basal mandibular width. Antennal flagellum clavate apically, with 17 flagellomeres; subbasal flagellomeres 1.2–1.3 times as long as broad, subapical flagellomeres distinctly transverse ( Fig. 18 ); flagellomeres 1–5 with distinct subapical finger-shaped structures on outer surface ( Fig. 18 ). Face with weak, slightly elongate median prominence, and with a small smooth tubercle in upper part of this prominence ( Fig. 13 ). Face, frons and vertex distinctly granulate, dull, densely punctate (punctures mostly indistinct because of granulation). Gena finely punctate on nearly smooth background. Occipital carina complete. Hypostomal carina absent; lower part of postgena with strong longitudinal striae.

Mesoscutum punctate on distinctly granulate background, dull; punctures on propodeum and periphery of mesopleuron mostly indistinct because of granulation. Notaulus with moderately strong wrinkle on anterolateral side of mesoscutum. Scutellum with lateral longitudinal carinae present at its anterior 0.3. Epicnemial carina with upper end abruptly curved to reach front margin of mesopleuron at level of lower 0.25 of pronotum. Foveate groove very broad, moderately deep, oblique, extending over anterior 0.7 of mesopleuron, with long transverse wrinkles ( Fig. 15 ). Propodeal spiracle separated from pleural carina by 2.0–2.5 times diameter of spiracle ( Fig. 15 ). Propodeum with basal keel present in posterior 0.2–0.3 and missing anteriorly ( Fig. 16 ); basal part of propodeum about 0.9 times as long as apical area; apical area flat, broad, anteriorly widely rounded; apical longitudinal carinae complete, reaching transverse carina anteriorly ( Fig. 16 ).

Fore wing with second recurrent vein (2 m-cu) interstitial or weakly postfurcal, with unpigmented bulla anteriorly. Intercubitus (2 rs-m) short, moderately thick. First abscissa of radius (Rs +2 r) straight, much longer than width of pterostigma. First and second abscissae of radius (Rs +2 r and Rs) meeting at slightly acute angle. Metacarpus (R 1) almost reaching apex of fore wing. Hind wing with nervellus (cu 1& cu- a) weakly reclivous, slanted about 75° from horizontal. Legs slender. Tarsal claws slender, not pectinate.

First tergite 3.8 times as long as posteriorly broad, entirely smooth, in cross-section centrally more or less trapeziform, petiole slightly flattened dorsally. Glymma isolated, distinct, elongated, situated in anterior 0.45 of tergite ( Fig. 20 ). Second tergite 1.75 times as long as anteriorly broad ( Fig. 19 ). Thyridial depression distinct, about 3.0 times as long as broad, with posterior end rounded ( Fig. 19 ). Ovipositor very long, at apex strongly bent upwards and with a weak dorsal subapical depression ( Fig. 17 ); sheath 4.0 times as long as first tergite ( Fig. 12 ).

Head and mesosoma black; lower 0.2 of clypeus reddish brown; propleuron sometimes dark reddish brown. Mouthparts yellow. Mandible brownish yellow, teeth dark red. Antenna brown to dark brown, somewhat paler basally; scape and pedicel brownish yellow to yellow-brown. Tegula brownish yellow. Wings slightly infumate with brown. Pterostigma brown. Legs brownish yellow, hind tibia and tarsus (sometimes also fore and mid tarsi) infuscate. First tergite of metasoma brownish black. Metasoma posterior to first tergite predominantly brown, ventrally and on posterior margins of tergites yellowish ( Fig. 12 ).

Male. Unknown.

ETYMOLOGY. Named after the type locality, Mt. Lompobattang .

DISTRIBUTION. Indonesia (Sulawesi).

Figures

Figs 12–17. Diaparsis lompobattanga sp.n., ♀, holotype (12–13, 17) and paratype (14–16): 12 — habitus, lateral view; 13 — head, front view; 14 — head, dorsal view; 15 — mesosoma, lateral view; 16 — propodeum, dorsal view; 17 — apex of ovipositor, lateral view. Рис. 12–17. Diaparsis lompobattanga sp.n., ♀, голотип (12–13, 17) и паратип (14–16): 12 — габитус, сбоку; 13 — голова, спереди; 14 — голова, сверху; 15 — меЗосома, сбоку; 16 — проподеум, сверху; 17 — верШина Яйцеклада, сбоку.

Figs 18–20. Diaparsis lompobattanga sp.n., ♀, holotype (18–19) and paratype (20): 18 — antenna, lateral view; 19 — propodeum and base of metasoma, dorsal view; 20 — first mesosomal segment, lateral view. Рис. 18–20. Diaparsis lompobattanga sp.n., ♀, голотип (18–19) и паратип (20): 18 — антенна, сбоку; 19 — проподеум и основание метасомы, сверху; 20 — первый сегмент метасомы, сбоку.