Revision of Plumarius Philippi 1873 (Hymenoptera: Chrysidoidea, Plumariidae) from Argentina north of Patagonia, with description of eighteen new species Author Diez, Patricia A. Author Roig-Alsina, Arturo text Zootaxa 2016 4098 3 442 470 journal article 10.11646/zootaxa.4098.3.2 6e142c63-b99b-4b7f-9fc5-df22f03cad21 1175-5326 257577 67A12790-C853-4543-B60B-55F4D437B363 Plumarius malaris Diez & Roig-Alsina , sp. nov. ( Figs 8 A–F) Diagnosis. This species is related to P. divergens sp. nov. and P. no a sp. nov. by the long, apically tapering marginal cell of the fore wing, and the anterior ocellus crossed by the supra-torular line. It is distinguished from these two species by the straight, long malar areas, longer than the apical width of F1, and the swollen propodeum behind the spiracle. Description . Holotype , ♂. Body length 11.5 mm ( paratypes 9.8–12.7 mm ). Color. Dark brown, with head and mesosoma darker. FIGURE 8 . Plumarius malaris , sp. nov. , ♂. A, Head, frontal view; B, Head, ventral view; C, Head, lateral view; D, Genital capsule, lateral view; E–F; Genital capsule, ventral view. Scale bars = 0.5 mm. Head . 1.2 × wider than high in frontal view; wider in dorsal view than width of scutum between tegulae (5.9:5.4). OOD 1.0 × diameter of lateral ocellus; POD 1.4 × OOD. Antennocular distance 0.6 × diameter of torulus; interantennal distance 3.7 × antennocular distance. Vertex reticulated, without striae and moderately punctate between lateral ocelli (punctures separated by 1.5 × puncture diameter). Torulus closer to lateral ocellus than to clypeus (8.0:16). Lateral ocelli in frontal view below upper margin of head. Median ocellus crossed by supratorular line ( Fig. 8 A). Genal carina present, distinct. Length of area between preoccipital carina and suboral swelling subequal to length of suboral swelling (0.9:1.0); this area with a median longitudinal carina; lower area of genal bridge close to mandibular articulation with weak carinae and without punctures ( Fig. 8 B). Malar area longer than apical width of F1 (0.6:0.4), striate anteriorly. Supraclypeal area punctate on frontal area; with lateral striae; weakly rounded in lateral view ( Fig. 8 C). Epistomal suture evident. Clypeus 1.4 × wider than high, middle basal region punctate, with lateral striae joining medially; apex pointed, not truncate. Proportion of lengths of segments of maxillary palp, from base to apex: 7:7:9:11:8:10. Scape without swelling or projection. F1 5.5 × as long as its apical width, subequal to scape and pedicel combined (2.6:2.5). Mesosoma . Area anterior to pronotal lobe with striae; pronotal lateral carina distinct, forming a weak lower pocket. Notaulus weakly marked, as long as admedian line. Anterior surface of scutum densely punctate. Propleuron scarcely punctate; mesopleuron densely punctate. Metapostnotum with weak longitudinal striae, reaching to posterior margin. Propodeum transverse, swollen behind spiracle; with carina anterior to spiracle. Fore wing: marginal cell with anterior margin 2.8 × as long as posterior margin; vein Rs3 shorter than length of Rs4 (3.5:3.9); vein M separated from vein cu-a by 0.3 × length of cu-a ; discal cell rectangular. Hind wing: veins M and cu-a interstitial. Protarsomere 1 with four outer lateral spines, approximately. Length of mesotarsomere 1 longer than metatarsomere 1 (4.2:3.9); inner metatibial spur 1.5 × as long as outer spur. Metasoma. T7 triangular, densely punctate, with apex rounded. Genitalia as in Figs 8 D–F, with paramere truncated apically. Examined material. Holotype , ♂: ARGENTINA , Catamarca, Campo El Arenal, 14.I.1981 , col Roig-Alsina ( MACN ). Paratypes : 13 ♂ , same data of holotype ( MACN ); 1 ♂ , Los Nacimientos de Abajo, 1–15.X.1968 , col Willink, Terán, Stange (Malaise) ( IFML ); 1 ♂ , Los Nacimientos de Abajo, 16–31.X.1968 , col Willink, Terán, Stange (Malaise) ( IFML ); 1 ♂ , ca. Saujil (Fiambalá), 23.XI.2005 , col Porter, Fidalgo P., Diez ( MACN ). La Rioja, 1 ♂ , Patquia, col Breyer ( MACN ); 1 ♂ , Guayapa, Patquia, 14.X.1954 , col Haywará ( IFML ); 1 ♂ , Guayapa, Patquia, 18.X.1954 , col Haywará ( IFML ); 1 ♂ , 2 km S Pinchas, 10.X.2005 , Fidalgo P., Fidalgo G. ( MACN ). Mendoza, 9 ♂ , Ñacuñán, XII.1979 , col Roig ( MACN ); 4 ♂ , Sta. Rosa Ñacuñán, 10.X.1996 , col Debandi (IADIZA); 8 ♂ , Ñacuñán, 7.X.1996 , col Roig S. (IADIZA); 3 ♂ , Ñacuñán, I–II.1997 , col Debandi (IADIZA); 2 ♂ , San Rafael, 6 km N Punta del Agua, 14.XII.1998 , col Flores , Roig ( MACN ); 1 ♂ , 8 km S Malargue, 17.I.2006 , Col Fidalgo P. ( MLP ). Tucumán, 4 ♂ , entre Amaicha y Sta. María, 28.XI.2005 , col Torréns, Fidalgo P. ( MACN ). Distribution . Argentina (Tucumán, Catamarca, La Rioja, Mendoza). Variation . Specimens from Ñacuñán ( XII.1979 ) have the clypeus with lateral striae not joining on the middle basal region, which is weakly punctated; these specimens have the coloration lighter. Etymology . The specific epithet, malaris is Latin, refers to the large malar area of this species.