Pristaulacus exuberans Turrisi and Smith 2020, sp. nov.
Creators: name: Turrisi, Giuseppe Fabrizio
name: Smith, David R.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Aulacidae
Pristaulacus
Pristaulacus exuberans

description: <i>Pristaulacus exuberans</i> Turrisi and Smith, sp. nov. (Figs. 1–7) http://zoobank.org/ E58198CE- 8699-40BA-8CED-12BD91D696B8 Type material. <i>—</i> THAILAND: Holotype &amp;female; “ Thailand, Loei, Phu Kradueng NP, Dry evergreen, Pong Neep forest unit, 16 <i>°</i> 56.59 <i>̍</i> N 101 <i>°</i> 42.07 <i>̍</i> E, 273 m, Malaise trap, 12-19.iv.2008, Thonghuay Phatai leg., T5110 / <i>Pristaulacus exuberans</i> Turrisi &amp; Smith, sp. nov. &amp;female;, 2018, Holotypus ” (QSBG). Paratypes: 2&amp;female; ” Thailand, Sakon Nakhon, Phu Phan, Car Park at Nam Hom Waterfall, 17 <i>°</i> 7.411 <i>̍</i> N104 <i>°</i> 1.016 <i>̍</i> E, 347 m, Malaise trap, 25-31.iii.2007, SailomTongboonchai leg., T2376 (QSBG, USNM); 1&amp;female; “ Thailand, Loei, Phu Kradueng NP, Mixed deciduous/office, 16 <i>°</i> 56.51 <i>̍</i> N101 <i>°</i> 41.66 <i>̍</i> E, 274 m, Malaise trap, 26.iv-3.v.2008, Thonghuay Phatai leg., T5125 (QSBG); 1&amp;female; “ Thailand, Loei, Phu Kradueng NP, Nampong / Pong Neep forest unit, 16 <i>°</i> 56.59 <i>̍</i> N 101 <i>°</i> 41.61 <i>̍</i> E, 273 m, Malaise trap, 12- 19.iv.2008, Thonghuay Phatai leg., T5128 (QSBG); 1&amp;female; “ Thailand, Mae Hong Son, Namtok MaeSurin, NP Haad, Saen, 19 <i>°</i> 20.857 <i>̍</i> N97 <i>°</i> 59.123 <i>̍</i> E, 274 m, 1-8.vi. 2008, KaewmaneeJ. leg., T3527 (QSBG). Etymology <i>—</i> The name is derived from the Latin adjective <i>exuberans</i> (exuberant, plenty), referring to the striking colour pattern. Diagnosis.—Large-sized species, body length: 13.3 mm (excluding ovipositor). Colour mostly light orange, except most of antenna, lower part of mesopleuron, coxae and hind leg, and metasoma black. Setae: goldish. Head subquadrate, temple, from above, well developed, subparallel and rounded posteriorly, 0.8 <i>X</i> eye length; occipital margin straight; occipital carina very narrow, about 0.1 <i>X</i> diameter of ocellus, very weak medially; mesosoma coarsely sculptured, mostly areolaterugose; pronotum with one anterior stout, squared, forwarded tooth-like process on lateroventral margin; anterior margin squared not overhanging pronotum; fore wing with vein 2-rs+m moderately long; coxa III transverse-carinate dorsally, polished punctate ventrally; tarsal claw pectinate with five tooth-like processes (basal one very weak) metasoma ovoidal (lateral view) fairly compressed; petiole short, stout, about as long as wide; ovipositor 1.0 <i>X</i> fore wing length. Description <i>—</i> Female (holotype): Length: 13.3 mm; antenna length: 7.9 mm; forewing length: 10.8 mm; ovipositor length: 11.3 mm. <i>Colour:</i> Light orange except: most of antenna, lower part of mesopleuron, coxae and hind leg, and metasoma black; wings yellowish with irregular dark mark on cells B and SB, an irregular long substigmal light brown band extending to cell D2, and extreme distal margin infuscate. <i>Head</i>: From above, 1.06 <i>X</i> wider than long, dull; occipital margin straight; temple, from above, well developed, subparallel and rounded posteriorly, 0.82 <i>X</i> eye length; occipital carina very narrow, about 0.1 <i>X</i> diameter of ocellus, very weak medially; POL:OOL: 1.3; ocellar area 2.0 <i>X</i> wider than long; vertex and most frons with moderately coarse, deep and dense to very dense punctures (distance between punctures 0.5–1.0 <i>X</i> puncture diameters); lower frons with fine, superficial and scattered punctures (distance between punctures 3.0–5.0 <i>X</i> puncture diameters); clypeus with very coarse, superficial and dense punctures (distance between punctures 1.0–1.5 <i>X</i> puncture diameters); temple with fine, deep and scattered punctures (distance between punctures 3.0–5.0 <i>X</i> puncture diameters); malar area with moderately coarse, deep and very dense punctures (distance between punctures 0.5–1.0 <i>X</i> puncture diameters); antenna 0.8 <i>X</i> forewing length; A3 4.6 <i>X</i> longer than wide; A4 5.5 longer than wide and 1.4 <i>X</i> than A3; A5 5.1 <i>X</i> longer than wide and 1.2 <i>X</i> than A4. Setae: erect, short and dense on vertex and upper frons; recumbent, moderately long and scattered to moderately dense on lower frons and clypeus; erect, short and scattered to moderately dense on temple (length of setae 0.5 <i>X</i> diameter of ocellus); recumbent, short and moderately dense on malar area. <i>Mesosoma:</i> Coarsely sculptured mesosoma mostly areolate-rugose except anterolateral margin of pronotum foveolate and upper part of mesopleuron polished and punctate; pronotum with one anterior stout, squared, forward protruding toothlike process on lateroventral margin; propleuron polished and shiny with moderately coarse, superficial and moderately dense punctures (distance between punctures 2.0–3.0 <i>X</i> punctures diameter; prescutum triangular, wide, almost not incavate; mesoscutum with anterior margin square (lateral view); notauli wide and very deep; fore wing with vein 2-rs+m very short; coxa I polished punctate; coxa II transverse-carinulate dorsally, polished punctate to striolate ventrally; coxa III transverse-carinate dorsally, polished punctate ventrally, punctures fine, deep and moderately dense (distance between punctures 2.0–3.0 <i>X</i> puncture diameters); inner spur of mid tibia fairly longer than outer spur; inner spur of hind tibia slightly longer than outer spur; hind basitarsus 9.2 <i>X</i> longer than wide, and 1.0 <i>X</i> as tarsomeres 2–5; tarsal claw pectinate with five tooth-like processes (basal one very weak). Setae: erect, short and moderately dense on dorsal surface; semierect to recumbent, short and moderately dense on lateral and ventral parts, longer and denser on anterior margin of pronotum; erect, moderately long and moderately dense on hind surface of propodeum; erect, moderately long and dense on propleuron (length of setae 0.5-0.6 <i>X</i> pretarsus length). <i>Metasoma:</i> Ovoidal (lateral view) fairly compressed petiole short, stout, about as long as wide; T1 medially punctate-foveolate, polished impunctate otherwise; remaining segments polished punctate, punctures fine, superficial and dense to very dense; ovipositor 1.0 <i>X</i> fore wing length. Setae: metasomal segment 1 and sides of sternites glabrous; otherwise recumbent, very short and moderately dense. Male: Unknown. Variation.—The colour is stable in the six females examined. The length slightly varies from 12.8–13.8 mm and the forewing length from 10.4–11.1 mm. Distribution. <i>—</i> Thailand (Loei, Mae Hong Son, and Sakon Nakhon provinces). Biology. <i>—</i> Unknown. Remarks. <i>—</i> This is a distinctive species resembling <i>Pristaulacus flavipennis</i> Cameron, 1887, but characterized especially by the colour pattern: wings pigmented with several irregular dark marks basally, under stigma and distally; propodeum black. The hind tarsus is slender and hind coxa transversecarinate. The colour of mesosoma resembles <i>Pristaulacus erythrocephalus</i> Cameron, 1905, but the latter is distinguished mainly by the non-infuscated wings.
description: Published as part of <i>Turrisi, Giuseppe Fabrizio &amp; Smith, David R., 2020, Three New Species Of Aulacidae (Hymenoptera: Evanioidea) With Additional Records From Thailand And Laos, pp. 197-210 in Proceedings of the Entomological Society of Washington 122 (1)</i> on pages 198-201, DOI: 10.4289/0013-8797.122.1.197, http://zenodo.org/record/3724799