Heteragrion petiense Machado, 1988

LENCIONI, F. A. A., 2013, Diagnoses and discussion of the group 1 and 2 Brazilian species of Heteragrion , with descriptions of four new species (Odonata: Megapodagrionidae) , Zootaxa 3685 (1), pp. 1-80 : 12

publication ID	https://doi.org/10.11646/zootaxa.3685.1.1
publication LSID	lsid:zoobank.org:pub:5807B81B-3FDE-41C9-808F-005192A5E089
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treatment provided by	Felipe (2021-08-25 05:08:30, last updated 2023-11-10 04:43:52)
scientific name	Heteragrion petiense Machado, 1988
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Heteragrion petiense Machado, 1988 View in CoL

Figs. 22 (♂ app), 37D–F (♂ thx), 50C (♂ habitus), 71 (map)

Heteragrion petiense Machado 1988: 268–273 View in CoL , Figs. 1–3 View FIGURE 1–6 (description of male and female, photo in life and illustration of male appendages lateral and dorsal view); Lencioni 2005: 140, Figs. 87A–B (data on description and distribution, illustration from Machado, 1988); Machado & Bedê 2006: 50–52 (differences from H. tiradentense View in CoL , H. muryense View in CoL , H. flavovittatum View in CoL and H. ovatum View in CoL ); Garrison et al 2010: 88 (list). Machado in Machado et al 2008: 459–460 (distribution and threatened status); Blanke 2008: 13–14 (distribution record).

Types. Holotype and allotype in AMPC (Holotype and two male paratypes examined) .

Additional material examined. 2♂. Brazil: Minas Gerais State: Santa Barbara, Reserva de Peti , 19º54'S, 43º23'W, 19-X-1986 and 25-X-1987 GoogleMaps , 2 ♂ (paratypes) leg. A. Machado.

Illustration made from following specimens. 1 ♂ (Fig. 22A, 22B, 37D, 37E, 37F, 50C)— Brazil: Minas Gerais State: Santa Barbara, Reserva de Peti , 25-X-1987, leg. A. Machado (paratype —NC 3938) .

Distribution. Brazil (States of Minas Gerais, Espirito Santo).

Diagnosis. Male: Two large ellipsoid-like white marks on largely black mesepisternum (Figs. 37E–F) diagnostic. Cercus in lateral view: small dorsobasal expansion present. Ventrobasal expansion triangular, occupying more than 1/2 length, angled downward at approximately 45º to reach most ventral point at mid length of expansion, then upward at equal angle to reach horizontal branch of cercus (Fig. 22B), slightly curved downward. Cercus in mediodorsal view: apical portion longest, basal portion slightly longer than medial one. Ventral expansion present and sparsely hairy on ventral border. Ventral branch of medial process fingerlike, ridge reaching tip through internal side. Dorsal branch of medial process small and roughly triangular, with two sides shorter than base, internal side sclerotized and toothed (Fig. 22A). Female not examined.

References

Blanke, A. F. R. (2008) Four new Odonata records for the state of Espirito Santo, Brazil: Heteragrion petiense Machado, Lestes forficula Rambur, Orthemis ambinigra Calvert and Erythrodiplax clitella Borror (Zygoptera: Megapodagrionidae, Lestidae; Anisoptera: Libellulidae. Notulae odonatologicae, 7 (2), 13 - 15.

Garrison, R. W., von Ellenrieder, N. & Louton, J. A. (2010) Damselfly Genera of the New World: An Illustrated and Annotated Key to the Zygoptera. The Johns Hopkins University Press, 490 pp.

Lencioni, F. A. A. (2005) Damselflies of Brazil. An illustrated identification guide. 1 - Non - Coenagrionidae families. All Print Editora, Sao Paulo, iv + 324 pp.

Machado, A. B. M. (1988) Heteragrion petiense spec. nov., from the state of Minas Gerais, Brazil (Zygoptera: Megapodagrionidae). Odonatologica, 17 (3), 267 - 274.

Machado, A. B. M. & Bede, L. C. (2006) Heteragrion tiradentense spec. nov. from the state of Minas Gerais, Brazil (Zygoptera: Megapodagrionidae). Odonatologica, 35 (1), 47 - 54.

Machado, A. B. M., Drummond, G. M. & Paglia, A. P. (2008) Livro Vermelho da Fauna Brasileira Ameacada de Extincao. Brasilia, DF. MMA; Belo Horizonte - Fundacao Biodiversitas 2 v., 1420 pp.