title: Neotropical genera of Naucoridae (Hemiptera: Heteroptera: Nepomorpha): new species of Placomerus and Procryphocricos from Guyana and Venezuela.
abstract: The Neotropical fauna of saucer bugs (Naucoridae) currently includes four monotypic genera. Recent extensive collecting in Venezuela has produced three new species in two of these genera. In addition, undetermined Guyanan specimens of one of the new species were found in the United States National Museum of Natural History. Thus, described here are Placomerus obscuratus n. sp. from Guyana and Venezuela with brachypterous and macropterous hindwing forms, and two species of Procryphocricos from Venezuela. Procryphocricos quiu n. sp. is described from the brachypterous forewing form and Procryphocricos macoita n. sp. from both brachypterous and macropterous forms. Previously described species also are discussed.
authors.affiliation: Enns Entomology Museum, Division of Plant Sciences, University of Missouri, Columbia, Missouri 65211, U.S.A.; Email: sitesr@missouri.edu.
authors.forename: Robert W
authors.initials: RW
authors.lastname: Sites
authors.affiliation: Museo del Arthropodos, Facultad de Agronomía, La Universidad del Zulia, Maracaibo 4001, Zulia, VENEZUELA.; Email: jcamacho@fa.luz.edu.ve.
authors.forename: Jesús
authors.initials: J
authors.lastname: Camacho
mesh_terms: D000818:Animals; D017753:Ecosystem; D005260:Female; D006172:Guyana; D020062:Heteroptera / Q000033:anatomy & histology* / Q000145:classification* / Q000502:physiology; D008297:Male; D014687:Venezuela