Heteragrion gracile: Ribeiro et al. 2021: 176, 2006

Vilela, Diogo Silva, Lencioni, Frederico A. A., Bota-Sierra, Cornelio A., Ware, Jessica L. & Bispo, Pitágoras C., 2023, Taxonomic revision of the Neotropical genus Heteragrion Selys, 1862 (Zygoptera: Heteragrionidae): male morphology, new species and illustrated key, Zootaxa 5356 (1), pp. 1-96 : 80

Heteragrion gracile: Ribeiro et al. 2021: 176 (misidentification, list of odonates from Bahia state).

Heteragrion roquei: Vilela et al. 2022: 493–500 (description and diagnosis of ♁; figs. 1a–b, 2, 3a–b, 4a–b, 5d).

Material examined. 1♁ (HOLOTYPE) BRAZIL, Bahia state, Municipality of Una, Fazenda Araruna , 19.ix.2019, (-15.3146, -39.1621, 40m asl), M.E. Rodrigues leg., UESC; 1♁ (PARATYPE) same data as holotype, but (-15.3101, -39.1621), FAAL .

Known distribution. Brazil (Southern Bahia state).

Diagnosis and remarks. The following character combination distinguishes this species from the remainder of Group A species: posterior margin of upper plate long, bearing a row of strong teeth, anterior margin short ( Fig. 58c ); in lateral view, ML bent downwards ( Fig. 58d ); ML apex roughly squared ( Fig. 58c ).

Figures

FIGURE 58. Heteragrion roquei: (a) anterior view of head; (b) lateral view of pterothorax; (c) mediodorsal view of cercus; (d) lateral view of cercus. ML: medial lobe.