Darwin wasps of the subfamily Pimplinae (Hymenoptera: Ichneumonidae) of Mexico: Ephialtes 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 0000-0003-4305-6568 Facultad de Ingeniería y Ciencias, Universidad Autónoma de Tamaulipas, Cd. Victoria, Tamaulipas, Mexico. & https: // orcid. org / 0000 - 0003 - 4305 - 6568 text Zootaxa 2022 2022-07-29 5169 3 201 251 journal article 112030 10.11646/zootaxa.5169.3.1 2cbc0f84-2011-4e7c-868f-6c305d5f3308 1175-5326 6952172 BB6FBD07-6B8B-4615-BD66-C4AEB612145F 1. Endromopoda daschi Khalaim , sp. nov. ( Figs 27–28 ) Material examined. Holotype female ( AEIC ), Mexico , State of Mexico , 3 mi. E of Río Frío [ de Juárez ], 10.xi.1972 , coll. B. & C. Dasch. Description. Female . Body length (without ovipositor) about 7.5 mm . Fore wing length 6.5 mm . Head polished, with very fine sparse punctures. Mandible with upper tooth longer than the lower tooth. Clypeus apically bilobed. Malar space 0.3× as long as basal mandibular width. Flagellum with 22 flagellomeres. Mesosoma 1.8× as long as high. Mesoscutum with very fine and moderately dense punctures, with rather dense setae, dull. Notaulus deep anterolaterally, extending in basal 0.3 of mesoscutum. Epomia distinct, arcuate. Epicnemial carina fine but distinct, reaching well above the level of lower corner of pronotum. Mesopleuron with very fine and sparse punctures, smooth and shining. Metapleuron polished and impunctate centrally. Submetapleural carina complete. Propodeum dorsally polished, with fine punctures anteriorly, impunctate posteriorly; laterally with shallow but distinct punctures; lateromedian longitudinal carinae very weak, slightly divergent posteriorly, discernible in anterior 0.3 of propodeum.All apical tarsomeres swollen; tarsal claws large, with large basal lobe. Fore wing with 1cu-a (nervulus) opposite to M&RS (basal vein). Areolet present. Hind wing with nervellus intercepted in posterior 0.4. First metasomal tergite somewhat elongate, coarsely punctate, with lateromedian carinae distinct in anterior 0.4–0.5 of tergite. Ovipositor robust, very strongly compressed laterally, weakly upcurved ( Fig. 27 ), apically with about six vertical ventral teeth, with neither nodus nor swelling dorsally ( Fig. 28 ); sheath 1.1× as long as hind tibia. Head (including clypeus and manible), antenna, mesosoma and metasoma black; extreme hind corner of pronotum and tegula yellow; palpi fuscous. Fore and mid legs orange-brown, mid tarsus slightly infuscate. Hind coxa, trochanter, trochantellus and femur orange-brown; tibia brown with pale median stripe on outer side; tarsomeres pale basally and brown apically. Pterostigma pale brown. Wings slightly brownish. Male . Unknown. Etymology. This species is named in memory of the American entomologist Clement Eugene Dasch (1925– 2007), expert in the Ichneumonidae and collector of the type specimen. Distribution. Mexico ( Mexico ). First record of genus from Mexico . Comparison. The new species is very similar to the Nearctic E. producta (Walley) but may be distinguished from this species by the propodeum with lateromedian longitudinal carinae discernible only in its anterior 0.3 (in anterior 0.75 in E. producta ), first tergite with lateromedian carinae present in anterior 0.4–0.5 (in anterior 0.7 in E. producta ), ovipositor weakly but distinctly upcurved and sheath 1.1× as long as hind tibia ( Fig. 27 ), while in E. producta the ovipositor is straight and sheath 1.2–1.4× as long as hind tibia.