Revision of the New World Scentless Plant Bug Genus Niesthrea (Hemiptera: Heteroptera: Rhopalidae), with Descriptions of Six New Species and a Key to the Species Author Melo, María Cecilia División Entomología, Museo de La Plata, U. N. L. P., Paseo del Bosque s / n ° (B 1900 FWA), La Plata, Buenos Aires, Argentina, ceciliamelo@ Author Henry, Thomas J. Systematic Entomology Laboratory, Agricultural Research Service, Department of Agriculture, c / o National Museum of Natural History, Smithsonian Institution, P. O. Box 37012, Washington, DC 20013 - 7012, and text Insect Systematics and Diversity 2019 2019-10-31 3 5 9 1 36 http://dx.doi.org/10.1093/isd/ixz014 journal article 10.1093/isd/ixz014 2399-3421 5385086 Niesthrea pictipes ( Stål, 1859 ) (urn:lsid: Coreoidea .speciesfile.org:TaxonName:452487) ( Figs. 4D and 10A–B ) Rhopalus pictipes Stål, 1859: 239 (original description); Walker, 1872: 23 (catalog). Corizus proximus Signoret, 1859: 96 (original description from Bahia , Brazil ). Synonymized by Stål, 1870: 223 . Corizus nebulosus Signoret, 1859: 98 (original description from Rio de Janeiro , Brazil ). Synonymized by Stål, 1870: 223 . Corizus anticus Signoret, 1859: 99 (original description from Buenos Aires , Argentina ). Synonymized by Distant, 1882: 171. Corizus pictipes : Stål, 1862: 307 (distribution); Mayr, 1866: 122 (catalog); Stål, 1870: 223 (synonymy, distribution); Distant, 1882: 171, 378 (distribution); Lethierry and Severin, 1894: 119 (catalog); Montandon, 1895: 7 (distribution); Torre-Bueno and Thomas, 1915: 160 (distribution); Rufinelli and Pirán, 1959: 21 (catalog); Quintanilla et al.1967 /1968: 31 (distribution); Quintanilla et al., 1975 /1976: 119 (distribution); Rizzo,1976: 42 (list of species with agricultural importance); Quintanilla et al., 1981: 149 (distribution); Di Iorio, 2004: 245 (host plants). Corizus ( Niesthrea ) pictipes : Stål, 1870: 223 (synonymy, distribution); Berg, 1878: 186 (distribution, note); Berg, 1879: 284 (distribution); Pennington, 1920: 16 (distribution); Pennington, 1922: 168 (distribution); Bosq, 1937: 114 (checklist, distribution); Bosq, 1940: 402 (checklist); Dellapé and Carpintero, 2012: 133 (checklist). Corizus ( Niesthrea ) anticus : Stål, 1870: 223 (list, distribution); Lethierry and Severin, 1894:115 (catalog). Niesthrea pictipes : Baker, 1908: 244 (in part, distribution); Harris, 1944: 106 (note): Sailer, 1961: 297 (note); Chopra, 1973: 449–450 (revision, lectotype designation); Froeschner, 1981: 91 (catalog); Göllner-Scheiding, 1983: 54 (catalog); Froeschner, 1989: 611 (list); Carpintero and De Biase, 2011: 42 (list, hosts); Pall and Coscarón, 2012: 1458 (catalog); Melo and Montemayor, 2014: 454 (checklist); Dellapé et al., 2015: 8 (list); Melo and Montemayor, 2015: 7–8 (distribution); Fowles et al., 2015: 621 (list, distribution); Melo et al., 2017: 495 (list); CoreoideaSF Team, 2018 (online catalog). Diagnosis This species is distinguished by the vertically quadrate paramere ( Fig. 10A ) with a large denticle at the base, the large broad, bilobed median lobe contricted at the base, and the relatively slender, pointed lateral lobes in lateral aspect. The labium extends to the base of abdominal segment III or slightly beyond. Niesthrea pictipes is most similar to N. casinii and N. truncata sp. nov. in the general shape of the parameres. It can be separated from N. casinii ( Fig. 7A ) by the more quadrate parameres with a large projection at the base of each (vs broader and more rounded on outer margin) and the broadly rounded, bilobed median lobe (vs distinctly conical); and from N. truncata sp. nov. ( Fig. 11A ), by the quadrate parameres (vs more broadly rounded) and the high, broad median lobe with large rounded lateral processes (vs short, narrow, and quadrate).