Heteragrion petiense Machado, 1988

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

Heteragrion petiense Machado, 1988

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

Heteragrion petiense Machado 1988: 268–273 , Figs. 1–3 (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 , H. muryense , H. flavovittatum and H. ovatum ); 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 , 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.

Figures

FIGURE 1–6. Appendage structure (1,2,3,5 lateral view, 4 distal apical view, 6 mediodorsal view): (A) basal portion of cercus,