Heteragrion itacolomii, Avila, Lencioni & Carneiro, 2020

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 : 62

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 ).

Figures

FIGURE 43. Heteragrion itacolomii: (a) anterior view of head; (b) lateral view of pterothorax; (c–d) mediodorsal view of cercus; (e) close up of MP, showing the ML plates. MP: medial portion; ML: medial lobe.