Description of fifteen new species of the Hypoxys balteatus species group (Hemiptera: Heteroptera: Pentatomidae) Author Mendonca, Maria Thayane S. 66075 - 110, Belém, Pará, Brazil; Author Nunes, Benedito M. e-mail: beneditomn @ gmail. com Author Fernandes, Jose Antonio M. text Acta Entomologica Musei Nationalis Pragae 2021 Acta. Ent. Mus. Natl. Pragae 2021-08-07 61 1 289 318 http://zoobank.org/dd0f4cb0-2288-4285-9fe2-6843f4952967 journal article 10.37520/aemnp.2021.017 1804-6487 5177527 DD0F4CB0-2288-4285-9FE2-6843F4952967 Hypoxys balteatus ( Walker, 1868 ) Edessa balteata Walker, 1868: 436 (original description). Edessa balteata : KංඋΚൺඅൽඒ (1909): 154 (catalog); Nඎඇൾඌ et al. (2020): 438 (diagnosis, distribution). Diagnosis. See Nඎඇൾඌ et al. (2020). Differential diagnosis. Hypoxys balteatus resembles H. breddini sp. nov. and H. santarensis sp. nov. with all three presenting posterior margin of valvifers 8 slightly projected posteriorly, with the tangent line at distal margins of valvifers 8 not reaching middle of valvifers 9. The species H. balteatus and H. santarensis sp. nov. can be separated from H . breddini sp. nov. by distal margin of valvifers 8 without small tooth-like projections (toothed in H. breddini sp. nov. ). Hypoxys balteatus differs from H. santarensis Figs 8A–B. Hypoxys belenensis sp.nov. A – genital plates;B – metasternal process. Scale bars = 1 mm. Figs 9A–B. Hypoxys bergrothi sp. nov. A – genital plates; B – metasternal process. Scale bars = 1 mm. sp. nov. in rounded distal margins of valvifers 8 (straighter in H. santarensis sp. nov. ); as a consequence, valvulae 8 are almost completely covered in H. balteatus and widely exposed in H. santarensis sp. nov. Excavation of valvifers 8 is much bigger in H. santarensis sp. nov. than in H. balteatus . Also, a closer look at the genital plates shows that in H. balteatus laterotergites 8 are almost level with apices of the abdominal segment VII (clearly surpassing them in H. santarensis sp. nov. ); also apices of laterotergites 9 just surpass the band connecting laterotergites 8 in H. balteatus (clearly surpassing the band in H. santarensis sp. nov. ). Other difference can be found in the humeral angles of the three species; H. balteatus has the angle developed and curved backwards, H. breddini sp. nov. has the angle developed and straight, and H. balteatus shows less developed straight angle. Distribution. Brazil : Pará (WൺඅΚൾඋ 1868, Nඎඇൾඌ et al. 2020).