Pristaulacus dilleri Turrisi & Smith, 2011

Turrisi, Giuseppe Fabrizio & Smith, David R., 2011, Systematic revision and phylogeny of the endemic southeastern Asian Pristaulacus comptipennis species group (Hymenoptera: Aulacidae) 2959, Zootaxa 2959 (1), pp. 1-72 : 19-22

Pristaulacus dilleri Turrisi & Smith , sp. nov.

( Figs 37–45 )

Type material. LAOS: holotype ♀, “Laos C, 7–16.V.04, Bolikhamsai pr., Ban Nape env, 350 m, 18°20'N, 105°08'E, Jendek & Šauša lg./ Pristaulacus dilleri Turrisi & Smith sp. n. ♀, 2009, Holotypus ” ( OLML) . Paratypes. 1♀, “ Laos south, Bay Houaykong, 18–30.IV.1999, O. Šauša lgt./ Pristaulacus dilleri Turrisi & Smith sp. n. ♀, 2009, Paratypus ” ( OLML) ; 1♂ same data of the previous paratype ( OLML) ; 1♂, “Laos CE, 1–18.v.2001, Boli Kham Xai , 18°21'N, 105°08'E, Ban Nape (8 km NE), 600 m, Vit Kuban leg./ Pristaulacus dilleri Turrisi & Smith sp. n. ♂, 2009, Paratypus ” ( OLML) .

Etymology. Named after Erich Diller (Zoologische Staatssammlung Munich, Germany), specialist in Ichneumonidae .

Description. FEMALE (holotype). Length: 12.8 mm; fore wing length: 9.0 mm; ovipositor length: about 9.0 mm (apex missing).

Colour black, except: clypeus with apical margin dark reddish; basal half of mandible reddish orange; maxillolabial complex dark brown; antenna dark brown; fore and mid tibiae reddish orange, hind tibia dark brown and tarsi white yellowish; fore wing hyaline, with two small and irregular brown spots on cell B and between cells SB and SD1, one large dark brown spot below stigma (slightly narrower than stigma extended posteriorly to Cu1a) and apex infuscate; hind wing hyaline; metasoma dark brown; valvula 3 of ovipositor dark brown. Setae: whitish.

Head, from above, 1.2 × wider than long, shiny; occipital margin strongly concave, with a narrow and weak medial groove; temple, from above, well developed, straight, about as eye length; occipital carina moderately wide, 0.4–0.5 × diameter of an ocellus, narrower along medial occipital groove; POL:OOL= 1.1; ocellar area 1.9 × wider than long; vertex and temple with fine, deep and scattered punctures (distance between punctures 3.0–5.0 × puncture diameters); frons with fine, deep and dense punctures (distance between punctures 2.0 × puncture diameters); clypeus with fine to coarse, deep and dense punctures; malar area finely and densely punctate; occipital area with fine, superficial and dense punctures; antenna 0.7 × as long as fore wing length; A3 4.8 × longer than wide; A4 8.2 × longer than wide, and 1.7 × longer than A3; A5 7.8 × longer than wide, and 1.5 × longer than A3. Setae: erect, short and scattered on vertex; semi erect to erect, short and scattered to dense on temple (length of setae 0.5–0.6 × diameter of an ocellus); erect, short and dense on upper frons; recumbent, short and dense on lower frons; recumbent, long and dense on clypeus; recumbent, short and dense on malar area.

Mesosoma coarsely sculptured; pronotum densely and coarsely areolate-rugose with one long and acute anterior tooth-like process on each lateroventral margin; propleuron polished and shiny with fine, deep and dense punctures on dorsal surface, fine, deep and scattered to dense on ventral surface (distance between punctures 2.0–3.0 × puncture diameters); prescutum triangular, wide, long, not concave to weakly concave toward apex, transverse carinate; mesoscutum mostly transverse-carinate, partly areolate-rugose posterior to notauli; anterior margin very slightly prominent and angulate (lateral view); notauli deep and wide; scutellum areolate-rugose on base, transverse-carinate medially, longitudinally carinate laterally; mesopleuron areolate-rugose, foveolate-rugulose on subalar area; metanotum longitudinally carinate; propodeum areolate-rugose, except anterior margin longitudinally carinate; venter of mesosoma transverse-carinate; fore wing with vein 2-rs+m short; coxa I polished and shiny, with very fine to fine, superficial to deep and dense punctures, deeper and denser basally; coxa II transverse-carinulate, with fine, deep and dense punctures medially on ventral surface; coxa III transverse-carinate on dorsal surface, transverse-carinulate-punctate on ventral surface (punctures coarse, deep and dense, distance between punctures about 2.0–3.0 × puncture diameters); inner spur of mid and hind tibia longer than outer spur; hind basitarsus 9.5 × longer than wide, and 1.2 × as tarsomeres 2–5; tarsal claw with four tooth-like processes. Setae: erect to semi erect, very short and dense on dorsal surface; mostly recumbent to semi erect, long and dense on sides and venter of mesosoma; erect to semi erect, long and dense on hind surface of propodeum; erect, long and dense on propleuron (setae length at most 0.6 × pretarsus length).

Metasoma pyriform (lateral view), strongly compressed laterally; petiole very elongate, slender, 7.0 × longer than wide; segments 1 and 2 polished and shiny, impunctate; remaining tergites with fine, superficial and dense punctures; remaining sternites shiny, impunctate, with only a very fine microsculpture; S7 polished and punctate to longitudinally carinulate (distal half) with coarse, deep and very dense punctures; T8 very finely microreticulate, with fine, deep and scattered (on basal third) to dense punctures; ovipositor length equal to fore wing length. Setae: segments 1–2 and S3 glabrous, except a few very short and scattered setae on distal margin of T2; recumbent, short and dense on remaining tergites, especially on last two; semi erect, very short and scattered on medial part of S4– S6; erect, short and dense on S7.

MALE (paratype). Length: 11.2 mm; fore wing length: 7.9 mm. Colour, structure, and setae like ♀, except: S1, metasomal segment 2 extensively reddish orange; wings without brown markings on cell B and obsolescent markings between cells SB and SD1; antenna length 0.7 × fore wing length; A3 3.5 × longer than wide; A4 6.0 × longer than wide, and 1.7 × longer than A3; A5 as long and wide as A4; A13 subcylindrical, with apex slightly acute, 4.7 × longer than wide; hind basitarsus 10.4 × longer than wide.

Variation. Examined 2♀, 2♂. Length: 9.2–12.8 mm (♀); 9.7–11.2 (♂); fore wing length: 7.6–9.0 mm (♀); 7.4– 7.9 mm (♂); ovipositor 1.0–1.1 × fore wing length. The irregular brown spots on cells B, SB, SD1 are obsolescent to absent in the males paratypes; the metasoma is lighter in the female paratype and especially in the two males paratypes, with irregular reddish-orange markings on S1, and partly on segments 2–4.

Distribution. Laos (Bolikhamsai and Attapeu provinces) ( Fig. 186 ).

Biology. Unknown.

Figures

FIGURE 186. Distribution map of Pristaulacus comptipennis species group. The number of species is indicated for each subregions, north: Japanese islands, middle: China and surroundings, south: Laos, Thailand, Vietnam. Letters refer to species: a, P. asiaticus; b, P. boninensis; c, P. comptipennis; d, P. corellianus; e, P. dilleri; f, P. emarginaticeps; g, P. excisus; h, P. gusenleitneri; i, P. insularis; j, P. jenningsi; k, P.konishii; l, P. lagrecai; m, P. nobilei; n, P. porcatus; o, P. sharkeyi; p, P. thailandensis; q, P. vietnamensis; r, P. vilhelmseni; s, P. vivaldianus; t, P. watanabei.

FIGURES 37–41. Pristaulacus dilleri sp. nov., holotype ♀. 37. Head, dorsal view. 38. Head, frontal view. 39. Head, lateral view. 40. Mesosoma, dorsal view. 41. Pronotum, lateral view.

FIGURES 42–45. Pristaulacus dilleri sp. nov., holotype ♀. 42. Wings. 43. Mesosoma, lateral view. 44. Mid and hind coxae, ventral view. 45. Metasoma, lateral view.