Pelocoris magister Montandon 1898
Creators: name: Viana, Renata Santos
name: Franco, Cleilton L.
name: Ramos, Aiala Alana P.
name: Mariano, Rodolfo
name: Silva De Azevêdo, Carlos A.
name: Stefanello, Fabiano
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Naucoridae
Pelocoris
Pelocoris magister

description: Pelocoris magister Montandon, 1898
Pelocoris magister Montandon, 1898: 289–290 (original description)
(Figs. 3, 7C, 7I, 8C, 9C, 10C, 11C, 14)
Diagnosis: Body length 14–18 mm, large species; hemelytra shiny, without distinct markings throughout (Fig. 3) (Rodrigues et al., unpublished data); third abdominal sternum with a truncated median carina, not spiniform and posteriorly projected (Fig. 8C).
Material examined: All specimens macropterous. 1 female, BRAZIL, Bahia, Porto Seguro municipality, RPPN Veracel, 16°23'21.7''S 39°8'44.8''W, 06.IX.2018, Equipe LOA colls., LOA 0002, C. L. Franco, 2022 det. 1 male and 1 female, Maranhão, Caxias municipality, Areia Branca stream, 5°02'13.9"S 43°29'08.9"W, 13.X.2010, M. B. Aguiar-Neto coll., LEAq 00332, R. S. Viana, 2022 det.; 6 males and 2 females, Areia Branca stream, 5°02'13.9"S 43°29'08.9"W, 28.VIII.2012 and 28.V.2015, LEAq 00333, 00336, 00338, 00345, 00351, R. S. Viana, 2022 det.; 1 male, Buriti stream, 4°54'54"S 43°6'46.8"W, 14. VI.2017, LEAq 00243, R. S. Viana, 2022 det.; 3 males and 5 females, Inhamum stream, 4°53'52.8"S 43°25'58.8"W, 25.VI.2011, 27.III.2012, 29.V.2015, 04.VIII.2015, and 21. VI.2016, LEAq 00237, 00335, 00340, 00343, 00348–00350, R. S. Viana, 2022 det.; 2 males, Inhamum stream, 4°53'52.8"S 43°25'58.8"W, 05. V.2017, LEAq 00223, 00226, F. Stefanello, C. L. Franco, 2022 det.; 2 females, Jatobá stream, 4°54'35.0"S 43°06'60.0"W, 05.X.2017, B. L. S. Carvalho coll., LEAq 00211−00212, C. L. Franco, 2022 det.; 1 male and 1 female, Jatobá stream, 4°54'35.0"S, 43°06'60.0"W, 26.VII.2021, C. L. Franco et al. colls., LEAq 00210, C. L. Franco, 2022 det.; 1 male, Jatobá stream, 4°54'35.0"S 43°06'60.0"W, 26.VII.2021, LEAq 00225, F. Stefanello, 2022 det.; 1 female, Ouro stream, 4°48'05.56"S 43°20'17.68"W, 15.X.2011, LEAq 00238, R. S. Viana, 2022 det.; 1 male, Primavera stream, 4°50'56.4"S 43° 29'42''W, 03.XII.2020, Franco et al. colls., LEAq 00042, C. L. Franco, 2022 det.; 5 males and 9 females, Sumidouro stream, 4°53'24"S 43°25'55.2"W, 29.X.2010, 20.X.2011, 26.III.2012, 03.X.2013, LEAq 00334, 00339, 00337, 00342, 00346, R. S. Viana, 2022 det.; 3 females, Sumidouro stream, 4°53'24"S 43°25'55.2"W, 29.I.2014, 28.VIII.2014, 29.X.2014, LEAq 00222, 00341, 00347, F. Stefanello and R. S. Viana, 2022 det.; 1 male and 2 females, Sumidouro stream, 4°53'24"S 43°25'55.2"W, 04.VIII.2015 and 11.V.2017, LEAq 00240, 00250, 00344, R. S. Viana, 2022 det. 1 male, Codó municipality, Baixa Grande II stream, 4°43'56.0"S 43°42'23.0"W, 05.X.19, C. L. Franco et al. colls., LEAq 00182, C. L. Franco, 2022 det.; 1 female, Buriti Corrente stream, 4°45'11.8"S 43°39'38.3"W, 12. VI.2018, Franco et al. colls., LEAq 00213, C. L. Franco, 2022 det.
Distribution: ARGENTINA (López-Ruf et al. 2006). BRAZIL (Montandon 1898): Bahia *, Espírito Santo (Montandon 1898), Maranhão *, Minas Gerais (Nieser & Melo 1997; Pelli & Barbosa 1998; Souza et al. 2006), Rio de Janeiro (Ribeiro et al. 2010) (Fig. 14).
Comments: This species shares some morphological characteristics with P. poeyi and P. b. nigriculus, including the scutellum mostly black without a vermiculate pattern and valvulae 1 entirely dentate along the dorsal and lateral margins (Figs. 11A, C, D). They differ in that the lateral margins of male abdominal tergum VII of P. magister are rounded (Fig. 7C), whereas in P. b. nigriculus and P. poeyi they are curved (Figs. 7A, D). In P. magister, the phallosoma is robust and presents a slight curvature apically (Fig. 7I), and female abdominal tergum VIII is trapezoidal with the distal portion with a shallow median concavity (Fig.10C). Pelocoris magister can be easily distinguished by its body size; it is the largest species occurring in Brazil.
description: 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 198, DOI: 10.11646/zootaxa.5375.2.2, http://zenodo.org/record/10184063