Minagrion in Santos 1965
Creators: name: Vilela, Diogo Silva
name: Anjos-Santos, Danielle
name: Koroiva, Ricardo
name: Cordero-Rivera, Adolfo
name: Guillermo-Ferreira, Rhainer
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Coenagrionidae
Minagrion

description: Minagrion Santos, 1965   
 Type species: Telagrion mecistogastrum Santos, 1965 by original designation.   
 Santos (1965b): 9 (genus proposed with M. mecistrogastrum as the type species and including Agrion waltheri, Telagrion ribeiroi and M. caldense sp. nov.);— Santos (1967): 7−9 (original description of M. canaanense ♂ and ♀);— Garrison (1991): 13 (synonymic list);— Carvalho & Nessimian (1998): 13 (habit and habitats of larvae occurring in Rio de Janeiro State);— Costa & Mascarenhas (1998): 11 (Catalogue of types housed in the MNRJ, comments);— Costa et al. (2000): 12 (species list, records, distribution, references);— Lencioni (2004): 91−92 (relationships of Minagrion with Telagrion);— Costa et al. (2001): 437, 440, 446 (species list, mention of M. ribeiroi);— Lencioni (2006): 17, 43, 169−173 (diagnosis, illustrations, distribution);— Heckman (2008): 299, 335−337 (key, illustrations, distribution);— Garrison et al. (2010): 134, 287−289 (generic key, diagnosis, illustrations, distribution, habitat, comments);— Côrtes et al. (2011): 136 (distribution of M. waltheri in Tocantins State);— Hämäläinen (2013): 30 (mention of M. waltheri named after Walthère de Selys Longchamps);— Machado & Bedê (2015): 290−291, 294 (occurrence of M. waltheri; description of M. franciscoi, additional distribution of M. caldense in Minas Gerais State as “ Minagrion caldensis ” in p. 294, illustration of genital ligula, comparison with Minagrion franciscoi).— Vilela et al. (2016): 489 (distribution of M. waltheri in Minas Gerais State, ecological data);— Lencioni (2017): 247, 383−396 (diagnosis, illustrations, distribution);— Renner et al. (2017): 3−6 (distribution of M. waltheri in Rio Grande do Sul State);— Rodrigues & Roque (2017): 2 (distribution of M. waltheri in Mato Grosso do Sul State);— Dalzochio et al. (2018): 6 (distribution of M. waltheri in Rio Grande do Sul State).   
 Other species included. Minagrion waltheri, Minagrion ribeiroi, Minagrion caldense, Minagrion canaanense, Minagrion franciscoi new syn.   
 Diagnosis. Medium to large coenagrionids (28–61 mm, Figs. 1 a–f, 5a–j); male anal appendages forcipate with a medial longitudinal ridge on medial surface of cercus: apically armed with a rounded sclerotized lobe (dorsal plate); the ventral portion of which forms a ventrobasal expansion varying in size (see Figs. 3 a–x, 8a–h); paraprocts vestigial with an acute tip, shorter or subequal to 1/2 cercus; genital ligula with an inner fold next to flexure, sclerotized lateral process at the flexure, apex entire (e.g. Fig. 4 a–b) or bifid (Fig. 4c), surpassing level of or almost at the same level of inner fold (Fig. 4e); female posterior lobe of prothorax slightly convex, uni- (Fig. 6 a–c) or trilobate (Fig. 6 d–f) in dorsal view; in lateral view, posterior margin of prothorax entire (Fig. 7c) or divided (Fig. 7 a–b, d–e) in the posterior lobe region, notopleural suture a sinuous (Fig. 7c) or smoothly curved line (Fig. 7b); S8 with no vulvar spine (Fig. 9c, f, i, l); vulvar laminae always surpassing posterior margin of S10, reaching or not the level of cercus; presence of a longitudinal process (here called tubercle) on both sexes, which consists in a thin projection on the venter of S1, larger on males (e.g. Figs. 2 a–l).   
 Distribution. Endemic to Brazil predominantly in the Southeastern region.
description: Published as part of Vilela, Diogo Silva, Anjos-Santos, Danielle, Koroiva, Ricardo, Cordero-Rivera, Adolfo & Guillermo-Ferreira, Rhainer, 2020, Revision of the genus Minagrion Santos, 1965 (Odonata: Coenagrionidae), pp. 176-198 in Zootaxa 4786 (2) on page 179, DOI: 10.11646/zootaxa.4786.2.2, http://zenodo.org/record/3875351