Belostoma dilatatum (Dufour, 1863)

(Figs. 1L, 6B)

Known distribution: ARGENTINA: Buenos Aires (De Carlo,1938), Córdoba (Lauck, 1963), Corrientes (De Carlo, 1938), Entre Ríos (De Carlo, 1938), La Granja, Mendoza (Lauck, 1963), Quilmes (Schnack, 1976), San Miguel de Tucumán, Santa Fe (Lauck, 1963), Santo Tomé (De Carlo, 1938), Tucumán (Lauck, 1963). BOLIVIA: Santa Cruz (Lauck, 1963). BRAZIL: Amazonas (Ribeiro et al., 2018), Mato Grosso (Ribeiro, 2005), Mato Grosso do Sul, Minas Gerais (Ribeiro, 2005), Pará (Ribeiro, 2005), Paraíba (Ribeiro, 2005), Rio de Janeiro (Ribeiro, 2005), Rio Grande do Sul (Lanzer, 1976), São Paulo (Ribeiro, 2005). PARAGUAY: Guairá (Lauck, 1963). URUGUAY: Artigas (Ruffinelli & Pirán, 1959), Montevideo (Ruffinelli & Pirán, 1959), Paysandú (Lauck, 1963), Treinta y Tres (Ruffinelli & Pirán, 1959).

Material examined: 1 male, pinned, BRAZIL, Paraíba, João Pessoa municipality, VII.1977, 0020868, V. Py-Daniel coll., T. M. Almeida, 2017 det. 1 male, pinned, Maranhão, Caxias municipality,in headwater, 04°39’32”S 43°03’51”W, light trap, 19.V.2007, J.A. Rafael, F.F. Xavier Fº & F.L. Oliveira colls., T. M. Almeida, 2017 det. 1 male, ethyl alcohol 70%, Mato Grosso, Vila Bela da Santíssima Trindade municipality, Guaporé river, 1810, 01.X.1984, team Rosé colls., T. M. Almeida, 2017 det. 1 female, ethyl alcohol 70%, Pará, Trombetas river, 11.III.1986, team Apoidea, T. M. Almeida, 2017 det .; 1 female, ethyl alcohol 70%, Boa Sorte stream, 22.IV.1989, U. Barbosa coll., T. M. Almeida, 2017 det .

Notes: This is the first record of B. dilatatum to Maranhão state (Brazil).