Heteragrion calafatiensis Mendoza-Penagos, Juen & Vilela, 2022

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 : 33

Heteragrion calafatiensis Mendoza-Penagos, Juen & Vilela, 2022

( Figs. 19a–d)

[Key locator: Key to Group B species, couplet 21 (20)]

Heteragrion calafatiensis: Mendoza-Penagos et al. 2022: 223–229 (description of ♁ from Pará state, Brazil; diagnosis and comparison with H. chlorotaeniatum ; figs. 1, 2a–d).

Material examined. 1♁ ( HOLOTYPE) BRAZIL, Pará , Magalhães Barata , way to Calafate village, near to the Marapanim River, 26.ix.2021, ( -0.8632, -47.6680, 20m asl), C.C. Mendoza-Penagos leg., UFPA .

Known distribution. Brazil (Northeastern Pará state).

Diagnosis and remarks. This newly described species, known only from the male holotype ( Mendoza-Penagos et al. 2022), can be separated from the remainder of Group B species by the following character combination: BP with a nearly straight margin ( Fig. 19c); MP the shortest portion of cercus in length ( Fig. 19c); Ridge above ML upcurved, not very long ( Fig. 19c); MP–AP junction forming a nearly straight line with AP ( Fig. 19c); in lateral view, ML bent downwards ( Fig. 19d); ML apex rounded ( Fig. 19c).