Heteragrion rogertaylori Lencioni, 2013

(Figs. 57a–g)

[Key locator: Key to Group A species, couplet 30’]

Heteragrion rogertaylori: Lencioni 2013: 16–17 (description and diagnosis of ♁ and ♀ from São Paulo state; figs. 28, 39a–c, 44a–c, 49c–d, 59a–b, 76);— Lencioni 2017: 155–156 (general taxonomic information; distribution; figs. 79–80);— Stefani-Santos et al. 2021: 185, 190 (list of species from Minas Gerais state);—Ávila-Jr. et al. 2021: 3 (list of species for Rio das Velhas, Minas Gerais state).

Material examined. 1♁ (HOLOTYPE) BRASIL, São Paulo state, Pindamonhangaba, Fazenda Trabiju, 26.iii.1999, F.A.A. Lencioni leg. , FAAL; 1♁ (PARATYPE) same data, but 21.xi.1998, FAAL; 1♁ (PARATYPE) same data, but 29.xi.1998, ABMM .

Known distribution. Brazil (states of Minas Gerais and São Paulo).

Diagnosis and remarks. This species is assessed as Data Deficient in the IUCN Red List, due to its restricted range and rarity, having been collected only three times, in 1998, 1999 and 2018, the latter in a Malaise trap (Vilela & Guillermo-Ferreira 2021j). The following character combination distinguishes this species from the remainder of Group A species: posterior margin of upper plate sinuous, bearing small teeth, anterior margin nearly curved, upper plate concave at its middle (Fig. 57e); ridge centered (Fig. 57f); in lateral view, cercus tapering towards its apex (Fig. 57g); ML apex ‘W’ shaped, bilobate (Fig. 57e).