Heteragrion itacolomii Ávila-Jr., Lencioni & Carneiro, 2020

(Figs. 43a–e)

[Key locator: Key to Group A species, couplet 25 (24)]

Heteragrion itacolomii: Ávila-Jr. et al. 2020: 121–130 (description and diagnosis of ♁ and ♀; comparison with H. freddiemercuryi; figs. 1–7, 9–10);— Stefani-Santos et al. 2021: 188 (comparison with the ♀ of H. mantiqueirae).

Material examined. 1♁, 1♀ (HOLOTYPE and ALLOTYPE) BRAZIL, Minas Gerais, Ouro Preto, Parque Estadual do Itacolomi, Trilha da Lagoa, 23.xii.2018 (female collected on 20.iii.2019), (-20.4325, -43.5075, 1350 m asl), W.F. Ávila-Jr. leg., ABMM .

Known distribution. Brazil (Southern Minas Gerais state).

Diagnosis and remarks. The following character combination distinguishes this species from the remainder of Group A species (morphologically close to H. freddiemercuryi and H. brianmayi): BP forming a greatly expanded concavity (Fig. 43c); upper plate narrow, longer than wide (Fig. 43c–e); ML ridge not centered (Figs. 43d–e).