Heteragrion tiradentense Machado & Bedê, 2006

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 : 13

Heteragrion tiradentense Machado & Bedê, 2006

Figs. 24 (♂ app), 36D–F (♂ thx), 45D–F (♀ thx), 48C–D (♀ S8–10, basal plate), 54 (♂, ♀ habitus), 64 (♂ live photo), 73 (map)

Heteragrion tiradentense Machado & Bedê 2006: 48–50 , Figs. 1–5 (description of male and female, differences from H. petiense , H. muryense , H. flavovittatum and H. ovatum , photo in life and illustration of male and female head, prothorax and thorax in dorsal view, male appendages in dorsal and lateral views); Garrison et al 2010: 88 (list).

Types. Holotype and allotype in AMPC (examined) .

Specimens examined. 2♂. Brazil: São Paulo State: Salesópolis , 23°35'46.65"S, 45°43'31.59"W, 1074 m, 29-I- 2011 , 2♂, leg. FAAL .

Illustration made from following specimens. 1♂ (Fig. 24A, 24B, 36D, 36E, 36F, 56A)— Brazil: São Paulo State: Salesópolis, leg. FAAL , 29-I-2011 ( NC 4450 ) ; 1♀ (Fig. 45D, 45E, 45F, 48C, 48D, 56B) (allotype)— Brazil: Minas Gerais State: Tiradentes, Libélulas da Serra de São José State Wildlife refuge ( Chafariz creek at the Mãe D´água forest), 11-XI-1996, leg. L.C. Bedê & W. Piper (Allotype — ABMM) .

Distribution. Brazil (states of Minas Gerais, São Paulo)

Diagnosis. Male: Color similar to H. muryense (Figs. 36A–B, 37A–B) but lacking sub-basal spine. Cercus in lateral view: small dorsobasal expansion present. Ventrobasal expansion occupying more than 1/2 length. Curved downward (Fig. 24B). cercus in mediodorsal view: Apical portion shorter, basal and medial portions subequal. Ventral expansion present and sparsely hairy on ventral border. Ventral branch of medial process wide plate, quite triangular but with curved step on external side; high sclerotized ridge reaching external side at base of curved step and reaching also base of dorsal branch. Dorsal branch of medial process very small, triangular, with two sides smaller than base, internal side sparsely toothed (Fig. 24A). Female: Posterior lobe of prothorax very narrow and roughly semicircular with small notch in middle, pale brown with large ovoid black spot in middle. Tips covered with short hairs (Fig.45D); Valves of ovipositor surpassing distal S10 and ventral margin with small spines ( Fig. 48C ); Cercus longer than S10, without bristles at tip ( Fig. 48C ); Basal plate: dorsal edge concave, longer than the convex outer edge. Ventral side 1/3 length of outer edge ( Fig. 48D ).

Figures

FIGURE 48. Female: Heteragrion muryense (A) S8–S10, (B) basal plate; Heteragrion tiradentense (allotype) (C) S8–S10, (D) basal plate; Heteragrion flavovittatum (E) S8–S10, (F) basal plate; Heteragrion ictericum (G) S8–S10, (H) basal plate.

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