Mischocyttarus (Kappa) santacruzi, a new species of social wasp (Hymenoptera, Vespidae) from Eastern Brazilian wet forest

Abstract

ABSTRACT. The holotype female, allotype male and nest are described of a new species of social wasp, Mischocy llorus (Koppa) Holotype female. Length 12.9 mm. Length of fore wing 9.7 mm. Insect largely black. Clypeus, frons up to height of two ocell ar diameters from anterior ocellus, antennal scape, lower corner of pro not urn, patch on dorsa l area ofmesepisternum and proximal half of fore tibia orange-brown. Mandibular teeth, extreme apical margin of clypeus, venation and legs (except coxae and fore femur) dark brown. Ye llow areas are gena l stripe along entire length of orbit inc luding malar space, pronotal carina, hind margin of pronotum, spot on posterior side of tegula, stripe along posterior side of axi lla, metanotum except large posterior diamond, triang le at posterior margin of propodeum outs ide insertion of propodeal valve, stripe on outer side of mid and hind coxae, all knees, subapical margins offirst and second metasomal tergites. Transparent parts are propodeal valve and extreme apex of first and second metasomal tergites. Subapical band of first tergite wider than that of second and very sl ightly interrupted centrally. Subapical band of second tergite extremely narrow. Last fore tarsomere with narrow white stripe . Larger hind tibial spur dark brown except pale brown tip, smaller spur pale brown.Clypeus wider than high (100:87), vety slightly convex and flattened centrally, angled below and slightly rounded at apex, its sides touching eye for 1.5 X the diameter of an antenna I socket. The apical margin slightly wavy. Punctures small and contiguous over the dorsal half of c1ypeus, slightly less dense and mixed with larger punctures towards apex. Apical part below forward mandibular insertion flattened and impunclate though minutely granular. Oce ll i forming right-angled triangle, the anterior ocellus separated from a lateral ocell us by one ocell ar diameter. Occiput weakly margined, stronger laterally. Width of gena at its mid point slightly less than half width of eye. Forward condy le almost touching eye. Frons densely but finely punctured. Mandible quadridentate, the inner tooth rounded and with a sharp upper corner; the others sharp.1) Work fi nanced by th e Projeto RestaUna,

Type specimens of Pompiloidea, Thynnoidea and Vespoidea (Hymenoptera) deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil

“…This paper is part of a series of lists being published to cover the Hymenoptera type specimens deposited in the entomological collection of MZSP. Until this moment, the following catalogues have been published: ants (Brandão, 1991;Klingenberg & Brandão, 2005;Brandão et al, 2010;Esteves et al, 2011;Prado & Brandão, 2013;Ulysséa & Brandão, 2013;Ulysséa et al, 2015), bees (Ramos et al, 2015), "Symphyta" & "Parasitica" wasps (Onody et al, 2014) and Chrysidoidea wasps (Santos et al, 2017). These initiatives agree with the 72F of the International Code of Zoological Nomenclature (ICZN, fourth edition, January 1999) recommendation making information about these types available to researches.…”

Phylogeny of wasps of the genus Mischocyttarus de Saussure (Hymenoptera, Vespidae, Polistinae)

“…Information on Mischocyttarus species not directly examined was obtained from the literature, especially Richards (1941, , Raw (1985Raw ( , 1996 and Cooper (1996aCooper ( , 1996bCooper ( , 1997aCooper ( , 1997bCooper ( , 1998aCooper ( , 1998b. In one case, occurrence of an expected condition (male antenna lacking hairs) was inferred in M. chanchamayoensis, in spite of being not explicitly mentioned by Cooper (1998a).…”

“…The genus is the largest among social vespids with 245 species distributed in nine subgenera, being essentially a Neotropical taxon with a few species occurring north of Mexico (Carpenter & Wenzel, 1988;Cooper, 1996aCooper, , 1996bCooper, , 1997aCooper, , 1997bCooper, , 1998aCooper, , 1998bRaw, 1985Raw, , 1996Richards, 1941Silveira, 1998;. It originally included only those species with a very long petiole between meso and metasoma, and whose nests typically have a circular comb suspended by a long thin central peduncle (de Saussure, 1853;.…”