Pristaulacus matteinii Turrisi and, 2020

Turrisi, Giuseppe Fabrizio & Smith, David R., 2020, Three New Species Of Aulacidae (Hymenoptera: Evanioidea) With Additional Records From Thailand And Laos, Proceedings of the Entomological Society of Washington 122 (1), pp. 197-210 : 201-204

Pristaulacus matteinii Turrisi and

Smith, sp. nov.

( Figs. 8–14 ) http://zoobank.org/ 23E044AA-EB54- 4593-A245-8F63F3D292D2

Type material. — LAOS: Holotype ♀ “ LAOS (LAO), Prov. Hua Phan, Phou Pan (Mt), Ban Saleui (Village), 20 ° 13 ̍ 30 ̎ N 103 ° 59 ̍ 26 ̎ E, 1350-1900 m MSL, 10.06.2009, leg. C. Holzschuh, and many locals/ Pristaulacus matteinii Turrisi & Smith sp. nov. ♀, 2018, Holotypus ” (OLML). Paratypes, same data as holotype except: 1♀, 08.vi.2009; 1♀, 20.iv.2010; 1Ơ, 28. iv.2010; 1Ơ, 14-18. iv.2010; 1♀, 11.v.2010; 2♀, 11.v.2011; 1♀, 20.v.2011; 1♀, 30.v.2011; 1♀, 22.v.2011; 1♀, 24.v.2011; 1Ơ, 24.iv.2012; 1Ơ, 09.v.2012; 1♀, 10-14.v.2012; 1♀, 15- 16.v.2012; 1Ơ, 03-05.iv.2014; 1♀, 28- 30.iv.2014; 1♀, Laos, Bolikhamsai Prov., Ban Nape env., 18 ° 20 ̍ N 105 ° 08 ̍ E, 07- 16.v.2004, Jendek&Sausa leg. (OLML); 1♀, Laos, near Xiang Khoang, 1100 m, 19 ° 18 ̍ N, 103 ° 31 ̍ E, 29.iv.2011, T. Mita leg. (TGFC); 1Ơ, Laos, Xiang Khoang, 20 km from Ban Ban, 19 ° 45 ̍ N, 103 ° 37 ̍ E, 05.v.2011, T. Mita leg. (TGFC); 3Ơ, Thailand, Loei, Phu Ruea NP, nature trail, 17 ° 30.74 ̍ N, 101 ° 20.65 ̍ E, 1353 m, 12- 19.iii.2007, Patikhom Tumtip leg., T 2308 (QSBG); 2Ơ, same data as previous, except: 23.iii.2007, T 2314 (QSBG, USNM); 1♀, Bhutan, Timphu Province, Motitang, 2500-2600 m, 16-27.vii.1990, C. Holzschuh leg.

Etymology. — The species is named for Dr. Maurizio Matteini Palmerini ( Italy) specialist of Mutillidae (Hymenoptera) . Diagnosis.—Medium sized species, body length: 10.3 mm (excluding ovipositor); colour mostly black, fore and mid legs extensively reddish orange; hind tarsus dark reddish to blackish; wings hyaline; forewing only slightly infuscate at extreme apex, with a moderately wide subquadrate substigmal dark brown spot; metasoma with a small area between apex of T1+2 and base of T3 dark reddish orange. Setae: goldish on mandible, whitish otherwise. Head subquadrate, temple, from above, well developed, fairly convergent and very weakly rounded posteriorly, 0.9 X eye length; occipital margin straight; occipital carina moderately wide, about 0.6 X diameter of ocellus; mesosoma coarsely sculptured, transversecarinate to areolate-rugose; lateroventral margin of pronotum with one anterior moderately long, acute, forwarded toothlike process; anterior margin squared not overhanging pronotum; forewing with vein 2-rs+m moderately long; coxa III transverse-carinate dorsally, transversecarinulate to polished punctate ventrally; tarsal claw pectinate with four tooth-like processes metasoma pyriform (lateral view) slightly compressed; petiole elongate, slender, 2.8 X longer than wide; ovipositor 1.1 X fore wing length.

Description — Female (holotype): Length: 10.3 mm; antenna length: 5.5 mm; forewing length: 8.3 mm; ovipositor length: 8.9 mm. Colour: Black except: mandible dark reddish medially; fore and mid distal half of femurs, tibiae, and tarsi dark reddish orange (tarsi darkened toward apex); hind tarsus dark reddish to blackish; wings hyaline; forewing only slightly infuscate at extreme apex, with a moderately wide subquadrate substigmal dark brown spot; metasoma with a small area between apex of T1+2 and base of T3 dark reddish orange. Setae: goldish on mandible, whitish otherwise. Head: From above, 1.10 X wider than long, shiny; occipital margin straight; temple, from above, well developed, fairly convergent and very weakly rounded posteriorly, 0.9 X eye length; occipital carina moderately wide, about 0.6 X diameter of ocellus; POL:OOL: 1.0; ocellar area 2.2 X wider than long; vertex with fine, deep and moderately dense punctures (distance between punctures 2.0–3.0 X puncture diameters); frons with moderately coarse, deep and dense punctures (distance between punctures 1.0–2.0 X puncture diameters); clypeus with moderately coarse, deep and very dense punctures (distance between punctures 0.5–1.0 X puncture diameters); temple with fine to moderately coarse, deep and moderately dense to dense punctures (distance between punctures 1.0–3.0 X puncture diameters); malar area with moderately coarse, deep and very dense punctures (distance between punctures 0.5–1.0 X puncture diameters); antenna 0.7 X fore wing length; A3 4.8 X longer than wide; A4 8.3 X longer than wide and 1.7 X than A3; A5 7.8 X longer than wide and 1.3 X than A4. Setae: erect, long and scattered on vertex and upper frons; recumbent, long and dense on lower frons and clypeus; erect, long and moderately dense on temple (length of setae 1.0 X diameter of ocellus); recumbent, short and dense on malar area. Mesosoma: Coarsely sculptured; pronotum areolate-rugose with one anterior moderately long, acute, forwarded tooth-like process on lateroventral margin; propleuron polished and shiny with coarse, moderately deep and dense to very dense punctures (distance between punctures 0.5.1.0 X puncture diameters); prescutum triangular, narrow, long, slightly incavate, transverse-carinate; mesoscutum trans- verse-carinate anterior to notauli (bearing 9 carinae), slightly distinct dorsally, anterior margin squared not overhanging pronotum, otherwise areolate-rugose notauli wide and moderately deep; scutellum almost areolate rugose (two only raised carinae in middle); mesopleuron areolate-rugose except anterior third of mesepimeron foveolate-rugose; metanotum areolate-rugose; propodeum areolate-rugose; ventral parts of mesosoma mostly rugulose; fore wing with vein 2-rs+m moderately long; coxa I polished punctate; coxa II transversecarinate dorsally, polished punctate ventrally; coxa III transverse-carinate dorsally, transverse-carinulate to polished punctate ventrally, punctures coarse, deep and dense (distance between punctures 1.0–2.0 X puncture diameters); spurs of mid tibia subequal; inner spur of hind tibiae fairly longer than outer spur; hind basitarsus 8.7 X longer than wide, and 1.0 X as tarsomeres 2–5; tarsal claw pectinate with four tooth-like processes. Setae: erect, moderately long and scattered on dorsal surface; semierect to recumbent, moderately long to long and moderately dense on lateral and ventral parts, slightly longer and denser on anterior margin of pronotum; erect, long and moderately dense on hind surface of propodeum; erect, long and dense on propleuron (length of setae 1.0 X pretarsus length). Metasoma: Pyriform (lateral view) slightly compressed; petiole elongate, slender, 2.8 X longer than wide; metasomal segments 1-2 almost shiny and impunctate; remaining segments dull with fine, deep and very dense punctures; ovipositor 1.1 X fore wing length. Setae: metasomal segments 1-2 glabrous; otherwise recumbent, very short and dense.

Male (paratype): Length: 11.3 mm; antenna length: 6.5 mm; fore wing length: 7.3 mm. Colour, structure, and setae like ♀, except: substigmal spot brown, quite smaller (about half) and less defined; A3 2.3 X longer than wide; A4 4.2 X longer than wide and 1.8 X than A3; A5 4.4 X longer than wide and subequal to A4; metasoma very elongate, subcylindrical; petiole, 3.5 X longer than wide.

Variation.—Examined 16 ♀ and 11 Ơ. Length: 7.5–11.3 mm (♀); 9.1–11.3 mm (Ơ); forewing length: 6.0– 8.4 mm (♀); 6.7–7.3 mm (Ơ). The apex of T1+2 and base of T3 is lighter, more reddish orange, in some specimens; the substigmal spot is very weak in some males.

Distribution — Bhutan (Timphu Province), Laos (Houaphan, Bolikhamsai, Xieng Khouang provinces), Thailand (Loei Province).

Biology — Unknown.

Remarks.—This new species superficially resembles Pristaulacus rufobalteatus Cameron, 1907 , but it is distinguished mainly by the following: clypeus black, mandible dark reddish to blackish in middle ( P. rufobalteatus : clypeus and basal half of mandible yellowish); hind tarsus dark brown ( P. rufobalteatus : reddish orange); metasoma mostly blackish, at most with T2 reddish ( P. rufobalteatus : metasoma extensively reddish); shape of the head with temple, from above, fairly convergent and very weakly rounded posteriorly, 0.9 X eye length ( P. rufobalteatus : temple, from above, gradually convergent and fairly rounded posteriorly, 0.8 X eye length); occipital margin straight ( P. rufobalteatus : weakly but distinctly concave); antenna 0.7 X fore wing length ( P. rufobalteatus : antenna 0.9 X fore wing length); hind coxa moderately elongate, about 2.2 X longer than wide in lateral view ( P. rufobalteatus : hind coxa elongate, about 2.6 X longer than wide in lateral view); ovipositor 1.1 X fore wing length ( P. rufobalteatus : ovipositor 1.3 X fore wing length).

Figures

Figs. 8–14. Pristaulacus matteinii. 8, Head, front. 9, Head, lateral. 10, Head, dorsal. 11, Mesosoma, lateral. 12, Mesosoma, dorsal. 13, Wing. 14, Metasoma.