First record of the Darwin wasp Hymenoepimecis Viereck, 1912 (Hymenoptera: Ichneumonidae: Pimplinae) from Argentina and Bolivia, with description of a new species Pádua, Diego G. Zootaxa 2022 2022-07-27 5169 1 49 60 Pádua, 2022 Pádua 2022 [151,471,474,501] Insecta Ichneumonidae Hymenoepimecis Animalia Hymenoptera 1 50 Arthropoda species atlantica sp. nov.  ( Figs 1A–H)  Zoobank: urn:lsid:zoobank.org:pub: 376CD25A-240A-43BB-8227-48DF2ABC699C   Diagnosis.This species can be distinguished from other  Hymenoepimecisspeciesby the combination of the following characteristics: 1) body orange, except head black, hind leg black, and metasoma with black marks on posterior margins of tergites II–V, tergites VI+ black; 2) fore wings hyaline yellowish, with apex blackish and with a blackish preapical band; 3) head in dorsal view with genae slightly convex behind eyes; 4) face smooth and without a carina; 5) occipital carina projected, curved upwards in the mediodorsal part; 6) pronotum with the pocket-like structure not reduced longitudinally; 7) epicnemial carina absent; 8) sternite I with a rounded swelling posteriorly; 9) female with tarsal claw with more or less square lobe, and with apex overtaking the lobe (tarsal claw single in males); 10) submetapleural carina absent; 11) female with ovipositor about 1.3 × as long as the hind tibia.   Description.Female ( Figs 1A, B, C, F, G, H). Body [14.3] 14.3–14.85 mm; Head.Face [0.55] 0.50–0.55 × as broad as high, smooth, slightly convex, with few spaced bristles; head in dorsal view with genae slightly convex behind eyes; ocelli inserted at an elevation, posterior ocelli separated from eyes by [1.0] × its own maximum diameter; occipital carina projected, curved upwards in the mediodorsal part. Mesosoma.Pronotum long, smooth and polished, with distance from tegula to head greater than [0.62] × distance from tegula to hind margin of propodeum with an anteriorly, and opening pocket-like structure not reduced longitudinally; mesoscutum smooth and polished; scutellum, in profile, convex; mesopleuron smooth and polished, with anterodorsal part bearing sparse, fine setiferous punctures; epicnemial carina absent; metapleuron smooth and polished, with a few sparse, fine setiferous punctures; submetapleural carina absent. Fore wing length [10.9] 10.9–11.2 mm; 1 cu-ainterstitial to the base of M&RS; 2 rs-m[0.40] 0.40–0.47 × as long as abscissa of Mbetween 2 rs-mand 2 m-cu, the abscissa of CUmeeting 1 m-cu&M[1.3] 1.3–1.4 × as long as CUand 2 cu-a; hind wing with abscissa of CUmeeting cu-aequidistant between M+CUand AA. Hind leg with tibia + tarsus [0.63] × the fore wing length; tarsal claw overtaking the lobe more or less quadrangular, with apex slightly overtaking the lobe. Metasoma.Slender; tergite I [1.35] 1.25–1.45 × as long as posteriorly broad, centrally quite strongly convex with lateral carinae only present at extreme anterior end flaking the anterior concavity; sternite I with a low, rounded swelling posteriorly; tergite II [1.15] 1.15–1.20 × as long as posteriorly broad; tergite III [1.0] × as long as posteriorly broad. Ovipositor shelf [1.3] 1.2–1.3 × as long as the hind tibia.  Coloration.Head black with an apical margin of clypeus and mouthparts (except apex mandible black) whitish; antenna brownish. Mesosoma orange. Anterior and median legs orange, the hind leg blackish. Fore wings hyaline yellowish, with apex blackish and with a blackish preapical band; pterostigma with basal half black and apical half yellow; hind wings with a blackish band in median part. Metasoma orange with black marks on posterior margins of tergites II–V, tergites VI+ black; ovipositor brownish with base and apex whitish brown, sheath blackish brown.  Male( Fig. 1B, E). Similar to the female in coloration and structure, but with tarsal claw simple; body 9.7–14.2 mm; fore wing 7.7–10.45 mm; antenna entirely brown.  Variation.Some male specimens presented metasoma orange with black marks on posterior margins of tergites II–IV, tergites V+ black, and a single male specimen from Santa Leopoldina municipality, state of Espírito Santopresented hind legs black, except coxae and trochanteres and trochantellus orange.   Distribution. Brazil( Espírito Santo state) ( Fig. 7A).  Biological notes.Host unknown.   Etymology.The specific name refers to the Atlantic Forest, the main biome in the state of Espírito Santo, where the typematerial was collected.   Type material.   Holotype, ♀: BRAZIL, ES [= Espírito Santo], Vila Valério, Sítio Benincá, 18°58’S, 40°27’W,  14– 28.IX.2011, Malaise[trap] ( C.O. Azevedoand team leg.), #119359, UFES.   Paratypes: idem holotypelabel, 10♂♂, #119341, #119317, #119342, #119363, #119364, #119316, #119360, #119318, #119356, #119361, UFES; idem, but Dom.[= Domingos] Martins, Mata Pico do Eldorado, 20°22’17’’S, 40°39’29’’W,  03–10.XII.2004, Malaise[trap] B4 (M. T. Tavaresand team leg.) 3♂♂, #104671, #104654, #104686, UFES; idem, but  26.XI-03.XII.2004, Malaise T7,  1♂, #63713, UFES; idem, but Sta.[= Santa] Leopoldina, Meia Légua, Malaise[trap],  31.III-06.IV.2007, Pt.[= Ponto] T01(F. Rampinelliand team leg.),  2♂♂, #48055, #48057, UFES; idem, but Guarapari, P. [= Parque] E. [= Estadual] Paulo César Vinha, Restinga(mata 4), 20°36’S, 40°25’W,   4 m.,  09-16.XI.2006, Malaise[trap] ( B. Araujo& M. Santosleg.), 1♂, #89235, UFES; idem, but Timbui, Hotel Fazenda Monte Sião,  05-24.IX.2014, Malaise[trap] ( P. Barcelos-Silvaleg.), 1♀, INPA.   Comments.  Hymenoepimecis atlantica  sp. n.closely resembles  H. duckensis Pádua & Onody, 2015,  H. ecuatoriana Pádua & Sääksjärvi, 2020,  H. longilobus Pádua & Sääksjärvi, 2020, and  H. neotropica( Brues & Richardson, 1913)mainly by having fore wings yellowish with two black bands and hind legs entirely black. It differs from  H. neotropicaand  H. longilobusby having all tarsal claws with more or less quadrangular lobe (tarsal claw with a preapical tooth in  H. neotropica, and tarsal claw with a longitudinally elongated lobe in  H. longilobus). It differs from  H. duckensisand  H. ecuatorianaby having pronotum entirely orange and metasoma with black marks on posterior margins of tergites II–V, tergites VI+ black (pronotum predominantly black and metasoma orange with tergites VI+ black in  H. duckensis, and pronotum orange and metasoma orange with tergites VI+ black in  H. ecuatoriana). 3866521309 2011-09-14 2011-09-28 2011-09-14 UFES Malaise & C. O. Azevedo Brazil -18.966667 Sitio Beninca 1273 -40.45 Vila Valerio 2 51 1 1 Espirito Santo holotype 3866521317 2011-09-14 2011-09-28 2011-09-14 UFES Malaise & C. O. Azevedo Brazil -18.966667 Sitio Beninca 1273 -40.45 Vila Valerio 2 51 10 10 Espirito Santo paratype 3866521316 2004-12-03 2004-12-10 2004-12-03 T, UFES Malaise & Tavares Brazil Mata Pico do Eldorado -20.37139 Dom. 21 -40.65806 Martins 2 51 3 3 Espirito Santo paratype 3866521311 2004-11-26 2004-12-03 2004-11-26 T Malaise Brazil Mata Pico do Eldorado -20.37139 Dom. 21 -40.65806 Martins 2 51 T7 1 Espirito Santo paratype 3866521304 2007-03-31 2007-04-06 2007-03-31 UFES F. Rampinelli Brazil Sta. 2 51 T01 1 1 Espirito Santo paratype 3866521303 [631,971,366,393] UFES Brazil 2 51 2 2 Espirito Santo paratype 3866521308 2006-11-09 2006-11-16 2006-11-09 UFES B. Araujo & M. Santos Brazil Restinga 4 -20.6 Guarapari 1267 -40.416668 Paulo Cesar Vinha 2 51 5 1 Espirito Santo paratype 3866521312 2014-09-05 2014-09-24 2014-09-05 INPA Malaise & P. Barcelos-Silva Brazil Restinga 4 -20.6 Timbui 1267 -40.416668 Hotel Fazenda Monte Siao 2 51 1 1 Espirito Santo paratype