The genus Pristaulacus Kieffer, 1900 (Hymenoptera: Aulacidae) in Vietnam and Northeastern Laos with descriptions of ten new species Author Pham, Nhi Thi 0001-0002-9304-9863 Institute of Ecology & Biological Resources (IEBR), Vietnam Academy of Science & Technology (VAST), 18 Hoang Quoc Viet Road, Cau Giay, Ha Noi, Vietnam & Graduate University of Science & Technology, Vietnam Academy of Science & Technology (VAST), 18 Hoang Quoc Viet Road, Cau Giay, Ha Noi, Vietnam ptnhi2@yahoo.com Author Long, Khuat Dang Institute of Ecology & Biological Resources (IEBR), Vietnam Academy of Science & Technology (VAST), 18 Hoang Quoc Viet Road, Cau Giay, Ha Noi, Vietnam Author Dzuong, Nguyen Van 0000-0003-2363-0088 Tay Bac University, Son La, Vietnam duongdhtb@gmail.com Author Mai, Pham Quynh 0000-0002-9479-9604 Institute of Ecology & Biological Resources (IEBR), Vietnam Academy of Science & Technology (VAST), 18 Hoang Quoc Viet Road, Cau Giay, Ha Noi, Vietnam & Graduate University of Science & Technology, Vietnam Academy of Science & Technology (VAST), 18 Hoang Quoc Viet Road, Cau Giay, Ha Noi, Vietnam pqmai70@gmail.com Author Turrisi, Giuseppe Fabrizio 0000-0002-5258-367X Museum of Natural History “ La Specola ”, Entomology, University of Florence, via Romana, 17, 50125 Florence, Italy giuseppefabrizio.turrisi@unifi.it text Zootaxa 2024 2024-03-28 5432 2 213 249 http://dx.doi.org/10.11646/zootaxa.5432.2.4 journal article 10.11646/zootaxa.5432.2.4 1175-5326 10898639 86CDBFBF-A565-4C97-AE83-306369B48E5A Pristaulacus lagrecai Turrisi & Smith, 2011 ( Figures 18E–H , 23 ) Pristaulacus lagrecai Turrisi & Smith, 2011: 38 , Figs 100–108) Holotype ♀ , “ VIETNAM : Ha Tinh , Huong Son , 900 m , 18°22’N 105°13’E , 18–28.v.1998 , L. Herman , MT / USNM , 2046975/ Pristaulacus lagrecai Turrisi & Smith sp. n. , 2009, Holotypus ” ( USNM ). Examined material . VIETNAM : 1♀ , labelled “Aulac. 006 ” ( IEBR ), N Vietnam : Ninh Binh , Cuc Phuong NP , Bong, forest, 20°20’50’’N 105°35’47’’E , 200m , light trap , 8.vi.2022 , Pham Van Phu . Diagnostic characters . (based on specimen collected in Vietnam ), ♀ , body length: 13.5 mm ; antenna length: 6.5 mm ; fore wing length: 9.0 mm; ovipositor length: 9.6 mm ( Fig. 18E ). Occipital carina lamelliform, complete ( Fig. 18F ), 0.3 × diameter of an ocellus; median occipital groove Vshaped, rather deep ( Fig. 18H ) (shallow in P. excisus Turner ); pronotum, in lateral view, with one acute projecting tooth-like process; scutellum with six transverse striae; tarsal claws with four tooth-like process; head, from above, 1.2 × wider than long; temple almost obliquely narrowed posteriorly; scape 1.3 × length pedicel; first flagellomere 1.6 × as long as scape, and 0.6 × length of second flagellomere; vein 2-Rs +M short, 2-Rs +M: 2-Ma: 3-Ma: 3-Mb = 3: 27: 9: 8; subapical groove (ovipositor guide) on hind coxa smooth ( Fig. 18G ); apical hind trochanteral groove shallow; trochantellus distinct ( Fig. 18H ); tarsal claw with four tooth-like processes. Fore wing membrane largely infuscate basally; large dark brown spot of fore wing occupying basal half of marginal and apical half of the second submarginal cells; petiole elongate, weakly widened apically, 5.0 × its apical width; ovipositor shorter (0.9 ×) than fore wing. Male . Unknown. Biology . Unknown. Distribution . NC Vietnam ( Ha Tinh province Turrisi & Smith, 2011: 38 ); Northern Vietnam ( Ninh Binh province : labelled “Aulac. 006 ” in this paper) ( Fig. 23 ). Remarks . Type material examined by Turrisi G.F., see Turrisi & Smith (2011) for redescription.