Dacnusa (Pachysema) rutila, Papp, 2009

Papp, J., 2009, Braconidae (Hymenoptera) From Mongolia, Xvii. Eleven Subfamilies, Acta Zoologica Academiae Scientiarum Hungaricae 55 (2), pp. 139-173 : 151-153

Dacnusa (Pachysema) rutila sp. n. f

( Figs 21–27 )

Material examined (1 f). – Female holotype: Mongolia, Archangaj aimak, Changaj Gebirge , Zezerleg , 1650 m, 19 June 1966, leg. KASZAB (loc. no. 542). – Holotype is glued on a pointed card by the mesosternum; it is in fairly good condition: (1) tarsomeres 2–5 of left middle leg missing, (2) left fore wing medially somewhat creased. Holotype is deposited in the Hungarian Natural History Museum ( Department of Zoology ), Budapest, Hym. Typ. No. 11319 .

Etymology – The species name “rutila ” refers to the reddish yellow colour of the first (and second) tergites.

Description of the female holotype. – Body 1.6 mm long. Antenna as long as body and with 22 antennomeres. First flagellomeres 4.2 times and penultimate flagellomeres 2.2 times as long as broad. – Head in dorsal view ( Fig. 21 ) transverse, almost twice (1.9 times) as broad as long, temple slightly swollen (i.e. head between temples a bit broader than between eyes) and just shorter than eye. Occiput excavated. Ocelli small and far from each other, OOL 2.3 times longer than POL ( Fig. 21 ). Eye in lateral view almost 1.4 times as high as wide and slightly wider than temple, temple evenly broad ( Fig. 22 , see arrows). Mandible distally somewhat broadening, 1.4 times as long as broad between upper and lower teeth, lower tooth rounded ( Fig. 23 ). Head polished.

Mesosoma in lateral view 1.25 times as long as high. Pronope distinct. Mesoscutum shiny and with disperse and fine hairpunctures, its dimple linear-form. Scutellum and mesopleuron polished, precoxal furrow smooth, shallow. Propodeum rugulose, hairy. – Hind femur 4.5 times as long as broad ( Fig. 24 ). Hind tibia and tarsus equal in length.

Fore wing somewhat longer than body. Pterostigma ( Fig. 25 ) keelform, eight times as long as wide and distally narrowing, r just longer than width of pterostigma; 2–SR somewhat longer than r, SR1 slightly incurved and ending before tip of wing, i.e. 1–R1 half as long as pterostigma ( Fig. 25 , see arrows). 1–2CU(1) somewhat longer than m–cu, subdiscal cell wide and closed distally ( Fig. 26 , see arrows).

First tergite ( Fig. 27 ) 1.5 times as long as broad behind and evenly broadening posteriorly; pair of spiracles at middle of tergite, pair of keels extending on fore half of tergite, rugulose with rugae elements. Further tergites polished. Second tergite 1.6 times broader behind than long medially and a bit longer than third tergite. Ovipositor sheath short, somewhat shorter than hind basitarsus.

Head and metasoma blackish brown, mesosoma brown, first (and second) tergite(s) reddish yellow. Flagellum dark brown to brown, scape and pedicel dark rusty brown. Mandible reddish yellow. Tegula and parategula yellowish brown. Legs light brownish yellow. Wings subhyaline, pterostigma and veins brown.

Male and host unknown.

Distribution: Mongolia.

tal part of right fore wing, 29 = first tergite, 30 = head in dorsal view, 31 = mandible

The new species, Dacnusa (Pachysema) rutila , is nearest to D. (P.) basirufa TOBIAS considering their basally reddish yellow metasoma and hind femur 4.5 times as long as broad ( Fig. 24 ), the two species are distinguished as follows:

1 (2) Marginal cell (or vein SR1) of fore wing reaching tip of wing ( Fig. 28 ). First tergite 1.2 times as long as broad behind, beyond spiracles parallel-sided ( Fig. 29 ). Temple in dorsal view not swollen and somewhat more than half as long as eye ( Fig. 30 ). Mandible not broadening distally ( Fig. 31 ). Clypeus brownish yellow. fm: 1.4 mm. – Asiatic Russia (Primorski Krai) D. (P.) basirufa TOBIAS, 1998

2 (1) Marginal cell (or vein SR1) of fore wing ending far before tip of wing ( Fig. 25 ). First tergite 1.5 times as long as broad behind, evenly broadening posteriorly ( Fig. 27 ). Temple in dorsal view swollen and slightly (or 0.9 times) shorter than eye ( Fig. 21 ). Mandible broadening distally ( Fig. 23 ). Clypeus brown. f: 1.6 mm. – Mongolia D. (P.) rutila sp. n.

Figures

Figs 21–31. 21–27. Dacnusa (Pachysema) rutila sp. n.: 21 = head in dorsal view, 22 = head in lateral view, 23 = mandible, 24 = hind femur, 25 = distal part of right fore wing, 26 = first subdiscal cell and m–cu of right fore wing, 27 = first tergite.– 28–31.Dacnusa (Pachysema) basirufa TOBIAS: 28 =dis-