Heteragrion consors Hagen, 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 : 39-40

Heteragrion consors Hagen in Selys, 1862

( Figs. 25a–e )

[Key locator: Key to Group A species, couplet 21’]

Heteragrion consors: Selys 1862: 27 [25 reprint] (description of ♁ from Bahia state, based on at least two specimens, one in Hagen collection, the other in NHMV [“Mus. de Vienne”], comparing it with H. aurantiacum );— Selys 1886: 60 (diagnosis);— Williamson 1919: 29 (key to species, ♁ in couplet d2; discussion of species, designating MCZ specimen the lectotype [“This specimen is the type.”], illustration of ♁ head, appendages in mediodorsal and lateral view, prothorax; figs. 24, 80–81, 145);— Santos 1968: 13–14 (distribution in Rio de Janeiro state; comparison with the ♀ of H. aurantiacum );— Santos 1970: 149–151 (description of ♀; comparison with H. cinnamomeum similar in color but easily distinguished by appendages; illustration of ♀ head, prothorax and S8–10; figs. 1–3);—St. Quentin 1970: 259 (states that the specimen in NHMV is probably from the type series and must be considered a syntype);— De Marmels 1987: 233 (similarity with H. pemon );— Carvalho & Pujol-Luz 1992: 159 (list of species from coastal areas of Rio de Janeiro state);— Costa & Santos 1999: 1–7 (larval description, comparison with the larva of H. aurantiacum ; larva inhabits both lotic and lentic environments; illustration of larval habitus, gill, labium, labial palp, and mandibles; figs. 1–6);— Costa & Santos 2000: 4 (key to species of Heteragrion from Rio de Janeiro state, couplet 2’);— Lencioni 2005: 129 (data on description and distribution, illustration of male appendages in lateral view, female illustrations from Santos 1970; figs. 78a–d);— Garrison et al. 2010: 88–89 (list and comments on larval habitat);— Loiola & De Marco 2011: 373–380 (behavioral ecology);— Lencioni 2013: 8 (synonymic list, information on types, distribution, diagnosis, remarks; figs. 14, 30df, 42df, 47cd, 51ab, 62, 73);— Kittel & Engels 2014: 49–55 (list of species from Rio Grande do Sul; figs. 1, 2b);— Lencioni 2017: 137–138 (general taxonomic information; distribution; figs. 63–64);— Dalzochio et al. 2018: 7 (list of species from Rio Grande do Sul);— Storari et al. 2019: 488 (recorded to Espirito Santo state);— Santos & Rodrigues 2022: 672 (recorded to Bahia state; considered an indicator species).

Material examined. 1♁ BRAZIL, Bahia state, Igrapiúna, Reserva Ecológica Michelin, 14.x.2013, A. Nemésio leg., ABMM; 2♁♁ Una , Fazenda Baculere , 16.ix.2019, (-15.3095, -39.1838), M.E. Rodrigues leg., UESC; 2♁♁ Urucuca, Serra Grande, 3.ix.2020, (-14.3919, -39.1025), M.E. Rodrigues leg., UESC; 2♁♁ Una, Fazenda Ararauna, 13.ix.2019, (-15.3071, -39.1594), M.E. Rodrigues leg., UESC; 2♁♁ Ilhéus, Fazenda São Francisco, 14.x.2019, (- 14.8993, -39.1043), M.E. Rodrigues leg., UESC; 2♁♁ Una, Fazenda Vera Cruz, 15.ix.2019, (-15.3065, -39.1571), M.E. Rodrigues leg., UESC; 1♁ Una, Fazenda Santa Dulce, 2.xi.2019, (-14.3931, -39.0936), M.E. Rodrigues leg., UESC; 5♁♁ Porto Seguro, Reserva Particular de Patrimônio Natural ( RPPN) Veracel, 4.ii.2019, (-16.3566, -39.1502), M.E. Rodrigues leg., UESC; 1♁ Minas Gerais state, Brumadinho, Fazenda Luis Ofeu, xii.2008, Paulo & Mariana leg., ABMM (abdomen missing); 1♁ Santa Maria do Salto (trail in the forest), 3.ii.2011, A. Nemésio leg., ABMM .

Known distribution. Brazil (states of Bahia, Espírito Santo, Minas Gerais, São Paulo, Rio de Janeiro, and Rio Grande do Sul).

Diagnosis and remarks. Heteragrion consors is close morphologically to H. cauei , sharing the large upper plate on ML. It can be separated from the latter by the shape of upper and lower plates and secondarily by body coloration patterns. The following character combination distinguishes this species from the remainder of Group A species: upper plate roughly triangular ( Fig. 25c ), subequal in size and shape with lower plate ( Figs. 25c–e ), bearing a posterior row of teeth and an anterior depression ( Fig. 25e ). Here we report its first record from Minas Gerais state.

Figures

FIGURE 25. Heteragrion consors: (a) anterior view of head; (b) lateral view of pterothorax; (c–e) mediodorsal view of cercus.