Taxonomic revision of the flavopalliata species group of Signiphora (Hymenoptera: Signiphoridae) Woolley, J. B. Dal Molin, A. Zootaxa 2017 2017-08-31 4315 1 1 150 Woolley & Dal Molin Molin 2017 [151,700,151,178] Insecta Signiphoridae Signiphora Animalia Hymenoptera 86 87 Arthropoda species plaumanni sp. nov.   Diagnosis.Fore wing with discal seta; wing venation distinctive, with marginal vein straight, barely curved, and with relatively short setae; ovipositor and ovipositor sheaths short; Mt1 weakly bilobed or almost transverse, with medial portion slightly rounded; Mt8 a thin, transverse strip without a medial incision; antennal clava wide, infuscate in distal ¼, and with a single, finger-like sensillum at apex; scutellum with medial pair of setae closer together than either are to lateral-most setae.   Signiphora plaumanniis most similar to  S. perpauca, but can be distinguished from it by the mostly dark mesoscutum (brown in anterior 1/3–½ in  S. perpauca) and metanotum (yellow or mostly yellow in  S. perpauca) and other features given in the key.   Description. Female.Length, anterior margin of pronotum to epiproct apex, 0.44–0.58 mm(n=7). Head yellow with brown band around occiput; antenna pale tan except distal 1/5–1/4 of clava distinctly darker. Medial third of pronotum brown, remainder yellow, mesoscutum mostly brown except posterolateral corners yellow, scutellum, metanotum and medial sclerite propodeum yellow or dusky yellow, contrasting with brown lateral sclerites of propodeum and all of metanotum. Fore wing infuscated from base to apex of venation, with lighter areas at wing base.  Head.Vertex and frons finely and transversely striate. Mandible bidentate, mandibular ducts enlarged apically. Pedicel length:scape length 0.39–0.53; 3 anelli, second anellus 1/3–2.5× length of first, third anellus 2.7–4.5× length of first, clava length:scape length 1.2–1.6.   FIGURES 317–320.  Signiphora plaumanni  n. sp.: 317, head (BMNH(E) 990304); 318, female antenna (BMNH(E) 990304); 319, mandibles (BMNH(E) 990304); 320, middle leg, female (BMNH(E) 990304).   FIGURES 321–324.  Signiphora plaumanni  n. sp.: 321, fore wing, female (TAMU-ENTO X0609369); 322, venation of fore wing (BMNH(E) 990269); 323, hind wing, female (BMNH(E) 990304); 324, venation of hind wing (BMNH(E) 990304).  Mesosoma.Mesoscutum and medial sclerite of propodeum transversely imbricate. Scutellum with 4 setae and 2 campaniform sensilla, the medial pair of setae closer together than either is to the lateralmost setae; medial propodeal sclerite rounded, process on medial sclerite narrowly rounded. Fore wing with discal seta, length:width 3.1–3.7; fore wing LMS:fore wing width 1.1–1.3; marginal vein:stigmal vein 2.3–2.8; marginal vein with 6 dorsal and 2 ventral setae; seta M3 length:marginal vein length 0.46–0.57; apical end of costal cell between seta M1 and M2. Hind wing with margins subparallel, hind wing length:width 6.2–6.7; hind wing width:fore wing width 0.47– 0.56; hind wing LMS:hind wing width 2.0–2.2. Mesofemur with one long and one short spine on posteroapical margin, mesotibial spur with 4 or 5 teeth, mesotibial spur:basitarsus 0.78–0.96; basitarsus:mesotibia 0.59–0.65.  Metasoma.Mt1 weakly bilobed or almost transverse, with medial portion rounded; Length Mt1:length Mt2 1.0–2.0; anterior-most portion of ovipositor lying under Mt3–Mt5; ovipositor length:metasoma length 0.82–0.96; ovipositor sheath length:ovipositor length 0.18–0.23; Ms3–Ms6 with anterior projections very long; Ms6 between midpoint and posterior 3/4 of metasoma and with 6 setae; Mt8 a thin, transverse strip, without a medial incision.  Male.Unknown.     Typematerial. HOLOTYPE ♀: slide-mounted in Canadabalsam,  Brazil, Sta. Catarina, Nova Teutonia,  14.xii.1949, F. Plaumanncoll., B.M.1957-341, BMNH(E) 990296. Holotype deposited in BMNH. PARATYPES:5 ♀ slide-mounted in balsam and 7 ♀ slide-mounted in Hoyers, data as holotype (BMNH(E) 990291–990294, 990297–990298, 990300–990304) except one ♀ collected 25.xi.1949(BMNH(E) 990304).  Paratypesdeposited in BMNH, USNM, TAMU, and Museu Entomológico Fritz Plaumann, Seara,  Brazil, with permission of BMNH(E).    Othermaterial examined. ECUADOR: Galápagos: 2 ♀, TAMU-ENTO X0609369, X0609371 ( TAMU).   Biology.Unknown.   Etymology. The species is named after Fritz Plaumann, the collector of the typespecimens, and a famous and extraordinary collector of micro-Hymenoptera and other insects, who devoted most of his 92 years to exploring and documenting the insect fauna of his region of Brazil. 1587279942 1949-12-14 BMNH Brazil & Sta. & Nova Teutonia & F. Plaumann & J.B. Munro Canada Canada 87 88 1 1 holotype 1587279922 BMNH, USNM, TAMU Museu Entomologico Fritz Plaumann & Brazil Brazil Seara 87 88 1 Seara paratype 1587279914 [199,1405,1907,1932] TAMU Ecuador Other 87 88 2 2 Galapagos