Ischnopelta impunctata Rosso & Campos, sp. n. (Figs. 5F, 29–30) Etymology. The epithet refers to the absence of punctures in large areas of the median region of the abdomen. Latin: im- = not, without + punctum = small point, punctures. Type Locality. BRAZIL, Piauí, Piripiri [-4.0989, - 41.0981]. Holotype. Male. BRAZIL, Piauí, Piripiri (Parque Nacional Sete Cidades), 31.I.2007, I.S. Carvalho. Deposited at the collection of Universidade Federal of Pará (UFPA), Belém (PA), Brazil. Paratypes. 9 males and 9 females. BRAZIL, Maranhão, SãoLuiz, 1female, 13. III.1984,A.BrisolaCol., [-2.5325. -44.2963], (UNIFESP); 1 female, 22. V.1984, A. Brisola Col., [-2.5325. -44.2963], (UNIFESP); 1 male and 2 females, 08.VII.1987, A. Brisola Col., [-2.5325. - 44.2963], (UNIFESP); Piauí, Piripiri (Parque Nacional Sete Cidades), 1 male, 12.XII.2006, I.S. Carvalho, [- 4.1256, -41.7093], (UFPA); 5 males and 2 females, 31.I.2007, I.S. Carvalho, [-4.0989, -41.0981], (UFPA); 1 female, 23. VI.2007, I.S. Carvalho, [-4.0989, -41.0981], (UFPA); Maranhão, Mirador (Parque Estadual Mirador, Posto Avançado do Mel), 1 female, 18–25. III.2012, F. Limeira de Oliveira & D. W. A. Marques, [-6.730556, -44.983056], (CZMA / UEMA); Paraíba, Juazeirinho, 1 male and 1 female, 26. VI.1956, A. G. A. Silva, [- 6.730556, -44.983056], (MCNZ, Coleção Campos Seabra); Piauí, Uruçuí (Estrada Estadual de Uruçuí), 1 male, 2–26. V.1984, R. Gonçalves, [-7.2316, -44.5564], (DZUP). Description. The overall somatic morphology is as described for I. scutellata, except for the following features. Head. Labrum inserted anteriorly to half the distance between the anterior margin of the eyes and the apex of mandibular plates. Antennae dark yellowish, slightly brown ventrally; segments ratio: I=II

Published as part of Rosso, Pedro & Campos, Luiz Alexandre, 2021, Revision of Ischnopelta Stål, 1868 with the description of twenty new species (Hemiptera: Pentatomidae: Discocephalinae), pp. 96-184 in Megataxa 6 (2) on pages 145-148, DOI: 10.11646/megataxa.6.2.3, http://zenodo.org/record/5752808