Review of the genus Valdasus Stål, 1860 (Heteroptera, Miridae, Cylapinae), with descriptions of four new species from Brazil, Ecuador and French Guiana Author Wolski, Andrzej Institute of Biology, University of Opole, Oleska 22, 45 - 052 Opole, Poland. Author Chérot, Frédéric 0000-0001-7918-7012 Service Public de Wallonie, DGO 3, DEMNA, Av. Maréchal Juin, 23, BE- 5030 Gembloux, Belgium, U. E. frederic. cherot @ spw. wallonie. be; https: // orcid. org / 0000 - 0001 - 7918 - 7012 frederic.cherot@spw.wallonie.be Author Carpintero, Diego Leonardo División Entomología, Museo Argentino de Ciencias Naturales “ Bernardino Rivadavia ”. Av. Ángel Gallardo 470 (1405), Ciudad Autónoma de Buenos Aires, Argentina. text Zootaxa 2020 2020-11-02 4869 2 187 206 journal article 8846 10.11646/zootaxa.4869.2.2 f2cd2a2b-9ae1-41fe-9a0e-b625a8b07be4 1175-5326 4418535 DEF79389-5024-4064-9A71-837CBC28A89B Valdasus bolivianus Carvalho, 1989 Valdasus bolivianus Carvalho, 1989: 92-94 (as new species, DV), Carvalho & Froeschner, 1994: 506 (catalog), Schuh, 1995: 38 (catalog), Gorczyca, 2006: 19 (catalog), Carpintero et al ., 2006: 6 (new record for Argentina , probably a misidentifica-tion—see discussion under V. schoenherrei ). Examined specimens . Holotype ( ♀ ): Bolivia , Cobiza , Pando , xii.1956 , Prozin leg. ( MNRJ ) (the specimen was examined by the second author during his last stay in Rio in 2016 and destroyed by the fire ravaging the Museum in September 2018 ). Diagnosis. Recognized by the following set of features: pronotum devoid of yellow stripe, pronotal disk lighter than areas of callosities; body length always less than 6 mm ; antennal segment I dark brown; exocorium devoid of relatively large, yellow patch near medial part; embolium and cuneus paler than clavus, corium and membrane. Redescription . Female holotype . Measurements (mm) (according to Carvalho, 1989: 92 ). Total length in dorsal view: 5.6, total width in middle of hemelytra (wider area): 2.2. Head . Width of vertex in dorsal view: 0.4, width of head across eyes in dorsal view: 1.0, length: 0.4. Antenna . Length of segment I 0.6, II 1.6, III 1.5, IV missing. Pronotum . Length (including collar): 0.8, posterior width (between humeral angles): 1.7. Cuneus . Length; 0.5, width: 0.4. COLORATION . Head . Frons and vertex yellowish brown almost evenly colored, whereas clypeus, juga and lora, slightly paler locally. Antennal segment I yellowish brown apically tinged with red. Other segments missing in holotype when examined. Eyes reddish brown. Pronotum brown, slightly darker on callosities than on disk. Mesoscutum brown. Scutellum dark brown, its apex yellowish. Hemelytra, including membrane, dark brown, apex of clavus and embolium lighter, the clavus with a reddish line on its inner margin. Femora yellowish brown to red brown. Tibia yellowish. Tibial spines (or stiff setae) whitish. TEXTURE AND VESTITURE . Head . Frons almost glabrous. Lora with some long erect setae. First antennal segment with stiff erect setae. Pronotal collar narrow, its surface narrowly and shallowly punctate, with erect white setae. Pronotal disk and pronotal callosities widely but shallowly punctate, the disk bearing numerous long erect setae. Scutellum with sparse relatively wide but shallow punctation and elongate erect white setae. Hemelytra with some erect white setae. Clavus, endocorium and exocorium punctate, punctation almost black, relatively wide but shallow. STRUCTURE. Head elongate vertically. Vertex not carinate but sulcate. Juga and lora short. First antennal segment short, bulbous. Mesoscutum almost covered. Veins rising. Male unknown. Biology . Unknown. Distribution . Bolivia . Discussion . This species remains poorly known. Our redescription is based on notes taken by the second author during his last stay in Rio de Janeiro and on available photo of the type . The presence in Argentina remains to be established, as the only female specimen cited by Carpintero et al . from this country has been putatively identified in the present work as Valdasus schoenherri .