Minagrion Santos, 1965

Vilela, Diogo Silva, Anjos-Santos, Danielle, Koroiva, Ricardo, Cordero-Rivera, Adolfo & Guillermo-Ferreira, Rhainer, 2020, Revision of the genus Minagrion Santos, 1965 (Odonata: Coenagrionidae), Zootaxa 4786 (2), pp. 176-198 : 179

publication ID

https://doi.org/ 10.11646/zootaxa.4786.2.2

publication LSID

lsid:zoobank.org:pub:9EEAC300-4179-41B9-B51F-FDB4131CD991

DOI

https://doi.org/10.5281/zenodo.10563954

persistent identifier

https://treatment.plazi.org/id/03B61158-FFDD-FFC2-FF44-A6B6FBA7B926

treatment provided by

Plazi

scientific name

Minagrion Santos, 1965
status

 

Minagrion Santos, 1965 View in CoL

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 View FIGURE 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 View FIGURE 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 View FIGURE 4 a–b) or bifid ( Fig. 4c View FIGURE 4 ), surpassing level of or almost at the same level of inner fold ( Fig. 4e View FIGURE 4 ); female posterior lobe of prothorax slightly convex, uni- ( Fig. 6 View FIGURE 6 a–c) or trilobate ( Fig. 6 View FIGURE 6 d–f) in dorsal view; in lateral view, posterior margin of prothorax entire ( Fig. 7c View FIGURE 7 ) or divided ( Fig. 7 View FIGURE 7 a–b, d–e) in the posterior lobe region, notopleural suture a sinuous ( Fig. 7c View FIGURE 7 ) or smoothly curved line ( Fig. 7b View FIGURE 7 ); S8 with no vulvar spine ( Fig. 9c, f, i, l View FIGURE 9 ); 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 View FIGURE 2 a–l).

Distribution. Endemic to Brazil predominantly in the Southeastern region.

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Odonata

Family

Coenagrionidae

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