Pristaulacus vilhelmseni 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 : 54-57

Pristaulacus vilhelmseni Turrisi & Smith , sp. nov.

( Figs 154–162 )

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 vilhelmseni Turrisi & Smith sp. n. ♀, 2009, Holotypus ” ( OLML) .

Etymology. Named after Dr Lars Vilhelmsen (Zoological Museum of Copenhagen, Denmark), for his contributions to the systematics and phylogeny of Hymenoptera , especially Orussidae .

Description. FEMALE (holotype). Length: 14.3 mm; fore wing length: 9.9 mm; ovipositor length: 11.2 mm.

Colour black, except: maxillo-labial complex dark brown; antenna with A1 slightly dark reddish orange on ventral surface; legs with fore and mid tibiae and tarsi dark reddish brown; fore wing hyaline, with cells C, B, SB and SD1 brown, a very large subrectangular dark brown spot below stigma (slightly wider than stigma extended posteriorly to vein 1Cua) and apex slightly infuscate; hind wing hyaline, with apical third slightly infuscate; valvula 3 of ovipositor dark brown. Setae: whitish.

Head, from above 1.4 × wider than long, shiny; occipital margin with a wide and deep medial groove; temple, from above, well-developed, parallel, rounded posteriorly, as long as eye; occipital carina moderately wide, 0.5–0.6 × diameter of an ocellus, narrower along occipital medial groove; POL:OOL= 1.2; ocellar area 2.1 × wider than long; vertex with fine, superficial and scattered punctures (distance between punctures 3.0–4.0 × puncture diameters); temple with fine, superficial and scattered punctures (distance between punctures 5.0 × puncture diameters), dense behind eye; frons with fine, superficial to deep and dense punctures (distance between punctures 2.0–3.0 × puncture diameters); clypeus with coarse, deep and dense punctures; malar area with fine to coarse, deep and dense punctures; occipital area with fine, deep and dense punctures; antenna 0.7 × fore wing length; A3 5.0 × longer than wide; A4 9.2 × longer than wide, and 1.8 × longer than A3; A5 8.4 × longer than wide, and 1.4 × longer than A3. Setae: erect, short and scattered on vertex; semi erect, long and dense on temple (length of setae 0.8–0.9 × diameter of an ocellus); erect, long and dense on upper frons; recumbent, long and dense on lower frons and clypeus; recumbent, short and dense on malar area.

Mesosoma coarsely sculptured; pronotum mostly areolate-rugose, foveolate above lateroventral margin, with one well-developed and wide anterior tooth-like process on each lateroventral margin and posterior part angulate, slightly tooth shaped; propleuron polished and shiny with coarse, deep and dense punctures on dorsal surface, fine, deep and dense on ventral surface (distance between punctures 2.0 × puncture diameters); prescutum triangular, wide, long, not concave to very weakly concave toward apex, transverse carinate; mesoscutum transverse-carinate to areolate rugose on part of anterior lobe and posterior to notauli; dorsally convex and slightly prominent; anterior margin not prominent, rounded (lateral view); notauli superficial and very wide; scutellum transverse-carinate, areolate-rugose on posterolateral corners; mesopleuron areolate-rugose, except subalar area, polished with coarse, deep and dense punctures; metanotum longitudinally carinate, except middle, areolate-rugulose; propodeum areolate-rugose, except anterior margin longitudinally carinate; venter of mesosoma areolate-rugose-punctate (laterally) to transverse-carinate medially with a narrow polished submedial “stripe” on each side; fore wing with vein 2- rs+m short; coxa I polished with fine to coarse, deep and dense punctures; coxa II mostly transverse-carinate, except base, transverse-striolate-punctate and inner half with a few transverse carinulae and fine to coarse, deep and dense punctures; coxa III transverse carinate on dorsal surface, mostly polished and punctate on ventral surface, with fine to coarse, superficial to deep and dense punctures (distance between punctures 1.5–2.0 × puncture diameters); inner spur of mid and hind tibia longer than outer spur; hind basitarsus 10.4 × longer than wide, and 1.1 × as tarsomeres 2–5; tarsal claw with four tooth-like processes. Setae: erect, short and scattered to dense on dorsal surface; recumbent to erect, long and dense on sides (especially on pronotum) and venter of mesosoma; erect, long and dense on hind surface of propodeum; erect, long and dense on propleuron (setae length at most 0.8–0.9 × pretarsus length).

Metasoma pyriform (lateral view), strongly compressed laterally; petiole elongate, slender, 3.6 × longer than wide; segments 1 and 2 mostly polished and shiny, with a few scattered very fine and superficial punctures medially on T1, T2; remaining tergites with a very weak and fine microsculpture and very fine, superficial and dense to dense punctures, except laterally on T3; sternites with fine, superficial and dense punctures; S7 polished with coarse, deep, and dense punctures; T8 microreticulate, with coarse, deep and dense punctures; ovipositor 1.1 × wing length. Setae: segments 1–2 glabrous, except a few erect, short and scattered setae on distal part of T2; recumbent, short and dense on remaining tergites, except sides of T3; recumbent, short and scattered medially on remaining sternites; recumbent to semi erect, short and dense on S7.

MALE unknown.

Distribution. Laos (Bolikhamsai Province), known only from the type locality ( 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 154–158. Pristaulacus vilhelmseni sp. nov., holotype ♀. 154. Head, dorsal view. 155. Head, frontal view. 156. Head, lateral view. 157. Mesosoma, dorsal view. 158. Pronotum, lateral view.

FIGURES 159–162. Pristaulacus vilhelmseni sp. nov., holotype ♀. 159. Wings. 160. Mesosoma, lateral view. 161. Mid and hind coxae ventral view. 162. Metasoma, lateral view.