Heteragrion flavovittatum Selys, 1862

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 : 50-51

Heteragrion flavovittatum Selys, 1862

( Figs. 34a–e )

[Key locator: Key to Group A species, couplet 27 (26)]

Heteragrion flavovittatum: Selys 1862: 18–19 (description of ♁ and ♀ from Minas Gerais state, Brazil; final remark: “distinct from the others [ Heteragrion species] by its robust structure, its shorter abdomen, the front of the thorax blackish with a wide yellow humeral stripe”);— Selys 1886: 56 (species diagnosis);— Williamson 1919: 15 (key to species, ♁ in couplet b1, ♀ in couplet a1; discussion of MCZ specimens illustration of head of ♁ and ♀; ♁ appendages in dorsal and lateral views, ♁ prothorax in dorsal view; figs. 12–13, 119–120, 133);— Machado 1988: 273 (comparison with H. petiense );— Lencioni 2005: 131 (description and distribution, illustration of ♁ syntype appendages in dorsal and lateral view, habitus and thorax in lateral view; figs. 80a–c);— Machado & Bedê 2006: 50–52 (differences from H. muryense , H. petiense , H. ovatum and H. tiradentense );— von Ellenrieder & Garrison 2007: 6 (mention and illustration of ♁ appendages; fig. 2e);— Garrison et al. 2010: 88, 91 (list, illustration of wings and appendages in mediodorsal view; figs. 374, 394);— Lencioni 2013: 9 (information on types, synonymic list, distribution, remarks; figs. 15, 34a–c, 46a–c, 48e–f, 54a–b, 71);— Lencioni 2017: 143–144 (general taxonomic information; distribution; figs. 67–68).

Material examined. 1♁ BRAZIL, Minas Gerais state, Jaboticatubas, Serra do Cipó (km. 128), 31.x.1966, N. Santos, J. Machado & J. Martins leg., FAAL .

Known distribution. Brazil (Southern-Central Minas Gerais state).

Diagnosis and remarks. This is the type species of the genus, designated by Selys (1862). It is not a common species, known by few individuals and assessed as Vulnerable by the IUCN Red List, as its known localities are threatened by the loss of Atlantic Forest ( von Ellenrieder 2020). The following character combination distinguishes this species from the remainder of Group A species: extensive dark areas on head and pterothorax ( Figs. 34a–b ); upper plate small, slightly concave at its middle, bearing a posterior row of small teeth, not centered ( Figs. 34c–e ); ML apex rounded ( Figs. 34c–e ).

Figures

FIGURE 34. Heteragrion flavovittatum: (a) anterior view of head; (b) lateral view of pterothorax; (c–e) mediodorsal view of cercus. Figure e provided by Rosser Garrison and Natalia von Ellenrieder.