Pelocoris subflavus Montandon, 1898 Pelocoris subflavus Montandon, 1898: 288–289 (original description) (Figs. 6, 7F, 7L, 8F, 9F, 10F, 11F, 12C, 15) Diagnosis: Body length 9.5–12.0 mm; posterolateral corners of abdominal segments III–VI with posterolateral corner rounded (Fig. 8F); male abdominal tergum VII with posterior margin concave medially, forming two small rounded lobes laterally (Fig. 7F) (Rodrigues et al., unpublished data); lateral margins of phallosoma straight, without grooves (Fig.7L) (Nieser & Melo 1997); third abdominal sternum with a robust, spiniform median carina produced posteriorly. Material examined: All specimens macropterous. 1 male, BRAZIL, Bahia, Maraú municipality, Maraú pool, 14°02'15.6"S 38°57'11.7"W, LOA 0003, C. L. Franco, 2022 det. 3 males and 3 females, Maranhão, Caxias municipality, Guarimã stream, 4°48'45.1"S 43°29'29.0"W, 11.VIII.2022, M.A. G.Almeida, R. S. Viana, F. Stefanello, C. C. Martins colls., LEAq 00256, R. S. Viana, 2022 det. 1 male and 1 female, Codó municipality, pool, 4°35'09.0"S 43°57'27.2"W, 03.X.2019, C. L. Franco et al. colls., LEAq 00161, C. L. Franco, 2022 det. Distribution: ARGENTINA (López-Ruf et al. 2006). BRAZIL (Montandon 1898): Bahia *, Maranhão *, Mato Grosso do Sul (Floriano et al. 2013), Minas Gerais (Nieser & Melo 1997; Pelli & Barbosa 1998; Melo & Nieser 2004; Souza et al. 2006), Rio de Janeiro (Ribeiro et al. 2010), Rio Grande do Sul (Montandon 1898) (Fig. 15). URUGUAY (Ruffinelli & Pirán 1959).

Published as part of Viana, Renata Santos, Franco, Cleilton L., Ramos, Aiala Alana P., Mariano, Rodolfo, Silva De Azevêdo, Carlos A. & Stefanello, Fabiano, 2023, Pelocoris Stål, 1876 of northeastern Brazil (Hemiptera: Heteroptera: Naucoridae) first records and a key to the species, pp. 193-213 in Zootaxa 5375 (2) on page 203, DOI: 10.11646/zootaxa.5375.2.2, http://zenodo.org/record/10184063