Darwin wasps of the subfamily Pimplinae (Hymenoptera: Ichneumonidae) of Mexico: Polysphincta genus-group Author Khalaim, Andrey I. Facultad de Ingeniería y Ciencias, Universidad Autónoma de Tamaulipas, Cd. Victoria, Tamaulipas, Mexico. & Zoological Institute of the Russian Academy of Sciences, St. Petersburg, Russia. Author Ruíz-Cancino, Enrique Facultad de Ingeniería y Ciencias, Universidad Autónoma de Tamaulipas, Cd. Victoria, Tamaulipas, Mexico. Author Coronado-Blanco, Juana María Facultad de Ingeniería y Ciencias, Universidad Autónoma de Tamaulipas, Cd. Victoria, Tamaulipas, Mexico. text Zootaxa 2024 2024-05-28 5458 2 151 196 http://dx.doi.org/10.11646/zootaxa.5360.3.8 journal article 10.11646/zootaxa.5458.2.1 1175-5326 11369805 3434A429-E512-4C57-B0C0-8B95E74DC31C Genus Schizopyga Gravenhorst, 1829 Schizopyga Gravenhorst 1829: 125 . Type species: Schizopyga podagrica Gravenhorst, 1829 , by monotypy. References. Cresson 1870: 159 [1 species (described as new) in Ameica north of Mexico ]. Townes & Townes 1960: 224 [description; review of 2 Nearctic species; key]. Townes 1969: 101 [diagnosis]. Carlson 1979: 335 [catalogue; 2 species in North America]. Gauld & Dubois 2006: 542 [remarks on taxonomy]. Sun & Sheng 2011 [1 new species from China ( Jiangxi )]. Varga & Reshchikov 2018 [1 new species from Kongo and Uganda ; remarks on taxonomy]. Gauld & Dubois (2006: 542) synonymized Dreisbachia under Schizopyga , but subsequently the Dreisbachia was resurrected ( Shaw 2006 ; Matsumoto 2016 ), and in this paper we consider Dreisbachia and Schizopyga as two separate genera. Recently, Matsumoto (2016) described a new genus Iania Matsumoto for the Western Palaearctic species Schizopyga pictifrons (Thomson) . Schizopyga anseli Fernández-Triana from Cuba and S. moreirai Loffredo & Penteado-Dias from Brazil are transferred here to Dreisbachia ( comb. nov. ). Schizopyga is a small predominantly Holarctic genus with nine species, including one species in the Afrotropical region ( Varga & Reshchikov 2018 ), one in tropical China ( Sun & Sheng 2011 ) and two in the Nearctic region (both are Holarctic, i.e. occur also in the Palaearctic region). One species is recorded here from Mexico . Species of the genus are koinobiont ectoparasitoids of adult spiders of the families Clubionidae , Gnaphosidae and Agelenidae . Key to species of Schizopyga occurring in Mexico 1. Hind tibia reddish brown with a single black mark on distal end ( Fig. 73 ). Metasomal tergites 1 to 5 reddish brown, distal tergites black ( Figs 68, 69 ). Propodeum dull....................................... 1. S. circulator pulchra Walley – Hind tibia whitish with subbasal and apical black marks ( Fig. 74 ). Metasomal tergites entirely black ( Fig. 72 ). Propodeum subpolished........................................................................... S. frigida Cresson