Pelocoris politus Montandon, 1895

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, Zootaxa 5375 (2), pp. 193-213 : 201-203

Pelocoris politus Montandon, 1895

Pelocoris politus Montandon, 1895: 8–9 (original description)

( Figs. 5 , 7E, 7K , 8D , 9E , 10E , 11E , 12C , 15 )

Diagnosis: Body length 8.0– 8.7 mm; abdominal tergum IV with posterolateral corner spinose and produced posteriorly ( Fig. 5 ); male abdominal tergum VII with posterior margin straight ( Fig. 7E ); lateral margins of phallosoma with two distinct grooves ( Fig. 7K ) ( Nieser & Melo 1997); female subgenital plate with posterior margin sharply incised at midline, forming two rounded lobes ( Fig. 9E ) ( Nieser 1975; Rodrigues et al., unpublished data); female abdominal tergum VIII narrowly rounded apically ( Fig. 10E ); valvulae 2 dentate along lateral margins ( Fig. 11E ); distal portion of metapleura narrowly rounded and produced posteriorly ( Fig. 12C ).

Material examined: All specimens macropterous. 1 male and 2 females, BRAZIL, Maranhão, Aldeias Altas municipality, Faz. São Raimundo, 4°37'48.1"S 43°28'11.4"W, 13.II.2019, C. A. S. Azevêdo coll., LEAq 00232, F. Stefanello, 2022 det. 1 male and 1 female, Caxias municipality, Sumidouro stream, 4°53'24"S 43°25'55.2"W, 07.XII.2018, LEAq 00228, C. L. Franco, 2022 det. 1 female, Parnarama municipality, Bueiro , 5°41'53"S 43°12'0"W, 14.VII.2022, C. L. Franco, R. S. Viana, F. Stefanello colls., LEAq 00229, C. L. Franco, 2022 det. 2 males and 2 females, Presidente Dutra municipality, Sítio Pezão, pool, 5°17'4"S 44°28'6"W, 15.VII.2022, C. L. Franco, R. S. Viana, F. Stefanello colls., LEAq 00239, C. L. Franco, 2022 det .

Distribution: ARGENTINA ( López-Ruf et al. 2006, Mazzucconi et al. 2022). BRAZIL ( Nieser 1975): Amazonas ( Nieser 1975), Maranhão *, Mato Grosso ( Heckman 1998), Pará ( Nieser 1975) ( Fig. 15 ). COLOMBIA ( Roback & Nieser 1974). PARAGUAY ( Montandon 1895).

Comments: This species shares some morphological characteristics with P. bipunctulus and P. subflavus , including the third abdominal sternum with a robust, spiniform median carina produced posteriorly ( Figs. 8B, D ).

Figures

FIGURE 5. Dorsal and ventral habitus of Pelocoris politus. (A–B): male; (C–D) female. Scale bar: 2 mm.

FIGURE 7. (A–F): Male abdominal terga VI and VII.A, Pelocoris binotulatus nigriculus; B, P. bipunctulus; C, P. magister; D, P. poeyi; E, P. politus; F, P. subflavus. (G–L): Male genital capsule and phallosoma. G, Pelocoris binotulatus nigriculus; H, P. bipunctulus; I, P. magister; J, P. poeyi; K, P. politus; L, P. subflavus.

FIGURE 8. (A–D): Lateral view of abdominal sterna. A, Pelocoris binotulatus nigriculus; B, P. bipunctulus; C, P. magister; D, P. politus. Arrows indicate condition of median carina at sternum III. (E–F): Dorsal view of abdomen showing the lateral margins. E, P. bipunctulus; F, P. subflavus. Arrows indicate posterolateral corner of tergum III.

FIGURE 9. Female subgenital plate, ventral view. A, Pelocoris binotulatus nigriculus; B, P. bipunctulus; C, P. magister; D, P. poeyi; E, P. politus; F, P. subflavus. Arrows indicate the median concavity of the posterior margin.

FIGURE 10. Female abdominal tergum VIII, dorsal view.A, Pelocoris binotulatus nigriculus; B, P. bipunctulus; C, P. magister; D, P. poeyi; E, P. politus; F, P. subflavus. Arrows indicate different conditions of the posterior margin.

FIGURE 11. Female valvulae 1 and valvulae 2, dorsal view. A, Pelocoris binotulatus nigriculus; B, P. bipunctulus; C, P. magister; D, P. poeyi; E, P. politus; F, P. subflavus. Arrows indicate different conditions in the valvulae.

FIGURE 12. Right side of symmetric pterothorax, ventral view. A, P. bipunctulus; B, P. poeyi; C, P. politus. Arrows indicate the posterior margins of the metapleura.

FIGURE 15. Distribution of Pelocoris politus and P. subflavus in Brazil.