Chnoodes machadoi sp. nov.

(Figure 7)

Material examined. BRAZIL: Mato Grosso: “Cáceres, MT./ 13.XI.1984 /Buzzi, Mielke, Elias/Casagrande leg./ Proj. Polonoroeste”, “Dptº Zool./UF - Paraná”, “ DZUP 188269”, “ HOLOTYPE / Chnoodes machadoi Krüger, Castro-Guedes & Almeida, 2015 ” [red label]; “Cáceres, MT./ 11.XI.1984 /Buzzi, Mielke, Elias/Casagrande leg./ Proj. Polonoroeste”, “Dptº Zool./UF - Paraná”, [DZUP 188250, 188272], “ PARATYPE / Chnoodes machadoi Krüger, Castro-Guedes & Almeida, 2015 ” [yellow label]; “Cáceres, MT./ 13.XI.1984 /Buzzi, Mielke, Elias/ Casagrande leg./Proj. Polonoroeste”, “Dptº Zool./UF - Paraná”, [DZUP 188249, 188270], “ PARATYPE / Chnoodes machadoi Krüger, Castro-Guedes & Almeida, 2015 ” [yellow label]; “Cáceres, MT/ 19.XI.1984 /Buzzi, Mielke, Elias/Casagrande leg./Proj. Polonoroeste”, “Dptº Zool./UF - Paraná”, [DZUP 188266, 188267], “ PARATYPE / Chnoodes machadoi Krüger, Castro-Guedes & Almeida, 2015 ” [yellow label]; “Cáceres, MT./ 10.XI.1984 /Buzzi, Mielke, Elias/Casagrande leg./Proj. Polonoroeste”, “Dptº Zool./UF - Paraná”, [DZUP 188271], “ PARATYPE / Chnoodes machadoi Krüger, Castro-Guedes & Almeida, 2015 ” [yellow label]. Goiás: “Dianópolis/GO, Brasil / 16–22.I.1962 /J. Bechyné col.”, [DZUP 188237] “ PARATYPE / Chnoodes machadoi Krüger, Castro-Guedes & Almeida, 2015 ” [yellow label].

Male. Length 2.84–2.88 mm, width 2.08–2.16 mm. Body oval, with sparse white pubescence. Pronotum black with yellowish border and two small lateral spots. Elytra black with yellowish border and two yellowish areas below callus and near apex (Figs 7 A–D). Head, antennae and mouthparts orange. Meso- and metasternum dark brown or black; legs yellowish; epipleuron yellowish; first ventrites black or brownish (Fig. 7 B). Genitalia with basal lobe symmetrical, stout, shorter than parameres, apex bluntly pointed (Fig. 7 E). Parameres short and narrow (Fig. 7 F). Sipho rounded at apex, siphonal capsule rounded and short (Fig. 7 G).

Female. Length 3.04–3.16 mm, width 2.20–2.24 mm. Genitalia with genital plates triangular, elongated, styli with setae (Fig. 7 H). Spermatheca C-shaped, short, apex narrow (Fig. 7 I).

Etymology. This species is named in honor of the dedicated entomologist Doctor Angelo Barbosa Monteiro Machado, an expert in the taxonomy of dragonflies (Odonata) and endangered species, on the occasion of his 80th birthday.

Geographical Distribution. Brazil (MT, GO).

Remarks. Chnoodes machadoi sp. nov. (Fig. 7) is similar to C. discomaculata (Fig. 3) and C. tarsalis (Fig. 6) in the color pattern, but is distinguished by the yellowish border of elytra. The male and female genitalia are also distinct.