Dacnusa (Pachysema) patuna, Papp, 2004

Papp, J., 2004, Braconidae (Hymenoptera) From Mongolia Xv. Subfamily Alysiinae: Dacnusini, Acta Zoologica Academiae Scientiarum Hungaricae 50 (3), pp. 245-269 : 258-260

Dacnusa (Pachysema) patuna sp. n. m

( Figs 51–58 )

Material examined (1 m). – Male holotype: Mongolia, Central aimak, Bugujn až achuj im Gebirge Bogdo ul, 36 km SW von Ulan Baator, 1650 m, 10 VI 1968, leg. Z. KASZAB (loc. no. 941). – Holotype is deposited in the Hungarian Natural History Museum (Department of Zoology), Budapest, Hym. Typ. No. 10669.

Holotype is in good condition: glued on a pointed card by its left side, left antenna damaged (i.e. with 20 antennomeres), right fore wing partly (subdiscal cells!) creased.

Etymology. – The species name “patuna ” is a phantasy name.

Description of the male holotype. – Body 1.6 mm long. Antenna somewhat longer than body and with 22 antennomeres. First flagellomere three times as long as broad apically and 1.3 times longer than second flagellomere, flagellomeres gradually shortening so that penultimate flagellomere 1.8 times as long as broad. – Head in dorsal view ( Fig. 51 ) transverse, twice as broad as long, eye twice length of temple, temple strongly rounded. OOL 1.6 times as long as POL, ocelli middle sized. Eye in lateral view 1.7 times as high as wide and 1.2 times wider than temple. Mandible 1.8 times as long as broad between teeth 1 and 3, second tooth relatively less spiky ( Fig. 52 ). Head polished, face with disperse and fine hair-punctures.

Mesosoma in lateral view 1.2 times as long as high. Notaulix restricted to fore declivous part of mesoscutum, middle lobe of mesoscutum with rather disperse hairs, polished, hind fovea linear and deep. Propodeum with a median areola, anteriorly from areola rugulo-subrugulose, otherwise propodeum uneven and shiny ( Fig. 53 ) with disperse hairs. – Hind femur 4.5 times as long as broad distally ( Fig. 54 ). Hind tibia one-sixth longer than hind tarsus.

Fore wing somewhat longer than body. Pterostigma ( Fig. 55 ) long, narrow and parallel-sided, 13 times as long as broad, r almost twice as long as width of pterostigma, 3–SR + SR1 ending before tip of wing; 1–R1 half as long as pterostigma; m-cu postfurcal (left fore wing) and just postfurcal or almost interstitial (right fore wing) ( Figs 56–57 , see arrows).

First tergite ( Fig. 58 ) 1.5 times as long as broad behind, pair of spiracles just beyond middle of tergite, tergite up to spiracles moderatly broadening, beyond spiracles parallel-sided, scutum (or hind half of tergite) rather longitudinally rugo-rugulose. Further tergites polished, tergites 2–3 fused.

Body brown, first tergite dark brown. Scape, pedicel and first flagellomere yellow, latter with faint brownish tint; flagellum brown. Face light brown, clypeus yellowish brown, mandible yellow, labrum and palpi straw yellow. Tegula light brown, parategula yellowish brown. Legs yellow, telotarsi darkening. Wings subhyaline, pterostigma and veins yellowish.

dorsal view, 49 = distal part of female right fore wing, 50 = mandible

The new species, Dacnusa (Pachysema) patuna , is nearest to D. (P.) evadne NIXON, 1937 (Palaearctic Region) considering their interstitial m–cu and short 1–R1, however, they are separated by the features keyed:

1 (2) First tergite twice as long as broad behind ( Fig. 59 ). Propodeum rugose with a weak longitudinal carina anteriorly ( Fig. 60 ). Head in dorsal view 1.8 times as broad as long, eye 1.2–1.3 times as long as temple ( Fig. 61 ). Middle tooth of mandible somewhat more spiky ( Fig. 62 ). Tegula yellow. m: 2–2.3 mm

D. (P.) evadne NIXON

2 (1) First tergite 1.5 times as long as broad behind ( Fig. 58 ). Propodeum medially with an areola, anteriorly rugulose otherwise uneven ( Fig. 53 ). Head in dorsal view twice as broad as long, eye twice as long as temple ( Fig. 51 ). Middle tooth of mandible somewhat less spiky ( Fig. 52 ). Tegula brown. m: 1.9 mm

D. (P.) patuna sp. n.

Figures

Figs 51–62. 51–58. Dacnusa (Pachysema) patuna sp. n.: 51 = head in dorsal view, 52 = mandible, 53 = propodeum, 54 = hind femur, 55 = distal part of left fore wing, 56 = postfurcal m–cu (↓), 57 = just postfurcal or almost interstitial m–cu (↓), 58 = first tergite. – 59–62. Dacnusa (Pachysema) evadne