Trachyserphus masneri Kolyada

Kolyada, Victor & Mostovski, Mike B., 2017, Revision of the genus Hormoserphus Townes, 1981 (Hymenoptera: Proctotrupidae), with description of Trachyserphus gen. n. and a new species, Zootaxa 4254 (5), pp. 575-583 : 581

Trachyserphus masneri Kolyada , sp. n.

( Figs 4 A–O)

LSID: urn:lsid:zoobank.org:act:78102765-7CDE-4C31-AAF2-0B5F8F1D78DE

Etymology. The species is named in honour of a world renowned hymenopterist Lubomir Masner.

Description. Female: Fore wing length 3.8 mm. Frons sparsely pilose, entire face except for frons finely punctate. Area between antennal sockets flat. Distance between antennal sockets equal to their diameter. Occipital carina developed as transverse bolster with faint wrinkles laterally and disappears far from oral carina. Clypeus flat and narrowed, with broadly truncate apex. Distance from lower edge of clypeus to centre of tentorial pit 0.9 of distance to lower edge of antennal socket. Labrum gently rounded apically. Mandible shortened and thickened basally, with a single point. Gena high, 0.5 eye height, with developed malar sulcus. Antenna long, filiform; 3rd antennomere 4 times as long as broad. Eye bare. Notauli narrow, with faint wrinkles basally, reaching mid mesoscutum as shallow depressions. Mesoscutum posteriorly with noticeable depressions. Humeral tubercle well developed, broadly rounded, with neither keels nor wrinkles. Pronotal scrobe with coarse vertical wrinkles. Epomia weak. Speculum anteriorly with fan of developed keels. Horizontal mesopleural groove deep and wide, reticulated inside. Vertical mesopleural suture entirely foveate, large, below with group of diverging coarse wrinkles. Longer spur of hind tibia reaching 0.5 basitarsus length. Propodeum with coarse reticulation and long sparse setae, dorsally with two large lateral areas separated by coarsely reticulated keel. Metapleuron laterally with shiny bare area occupying about two thirds of its surface; the area with deep reticulated suture in its upper part. Stigma shallow, trapezoid. Fore wing basally with indistinct medio-cubital crossvein. Syntergite base with no longitudinal groove. First pair of tyridia elongate, 6 times as long as wide. Ovipositor sheath narrow, with moderately tapered and curved apex, 0.5 times as long as hind tibia; sheath surface punctate with no longitudinal wrinkles.

Colour: Entire body including legs black, shining. Stigma dark brown.

Male: Similar to female, except for having flagellomeres with no noticeable tyloids and 3rd antennomere 3.6 times as long as broad.

Type material. Holotype ♀: Chile: Cautin, N.P. Conquillio [38°40'S 71°39'W], 1150 m, 4.ii.1988, yellow pan trap, Araucaria – Nothofagus forest, L. Masner ( CNCI) . Paratypes: 31♀ 4♂ same data as holotype; Chile : 2♀ Osorno, N.P. Puyehue [40°38'S 72°00'W], 1250 m, Argent[inian]. border, 13.ii.1988, L. Masner (CNCI).

Distribution. Central Chile.

Figures

FIGURE 4. Trachyserphus masneri sp. n. A, pronotum laterally; B, mesopleuron laterally; C, propodeum laterally; D, mesonotum dorsally; E, propodeum dorsally; F, base of syntergite dorsally; G – I, female head frontal, dorsal and occipital views; J, general habitus of female in lateral view; K, female antenna; L, ovipositor sheath; M, hind leg; N, wing venation; O, male antenna. Scale bars 0.1 mm in all figures except for 1 mm in Fig. 4 J.