Tuberculobasis arara, Machado, Angelo B. M., 2009

Machado, Angelo B. M., 2009, Denticulobasis and Tuberculobasis, new genera close to Leptobasis, with description of ten new species (Odonata: Coenagrionidae)., Zootaxa 2108, pp. 1-36 : 16

publication ID

https://doi.org/ 10.5281/zenodo.187806

DOI

https://doi.org/10.5281/zenodo.4391365

persistent identifier

https://treatment.plazi.org/id/1312774B-FFD6-FFE4-FF04-FBFBFA3BF874

treatment provided by

Plazi

scientific name

Tuberculobasis arara
status

sp.nov.

Tuberculobasis arara sp.nov.

Figures 25–26 View FIGURES 25 – 34 , 57– 59 View FIGURES 57 – 65

Etymology: The name refers to the Arara indian people who inhabit the municipality of Ji-Paraná.

Type specimen: Holotype (3), BRAZIL, Rondônia State, Ji-Paraná (8 º03´N, 62 º 52´W), 25 -I- 1961, Machado & Pereira leg. (inside forest, away from water) ( ABMM).

Description. Male holotype.

Head. Missing.

Thorax. Prothorax: Anterior lobe grey, median lobe brown with brown-yellowish lateral areas. Posterior lobe reddish brown. Pterothorax: mesopleuron and metepisternum ventrally brownish yellow, dorsally brown with a poorly defined antehumeral grey stripe and a well defined metepisternal stripe continuing on to mesinfrepisternum. Legs yellow, wings hyaline, venation brown, pterostigma reddish brown. Px in FW 11–12 in HW 10; R 3 in FW originating near Px 6, in HW near Px 4–5. Petiolation distal to Ac by a distance twice or 1.5 times the length of Ac in FW and 1.5 times in HW.

Abdomen. S 1–2 dorsally brown, laterally whitish blue. S 3–6 dorso-laterally dark brown with a pre-apical lateral yellow marking scarcely visible. S 7–10 and cercus yellowish orange. Paraproct brown.

Structural characters. Hind prothoracic lobe ( Figs 25, 26 View FIGURES 25 – 34 ) without lateral lobes, median lobe subrectangular, dorsal lip fused medially with ventral lip resulting a median depression ( Fig. 25 View FIGURES 25 – 34 ). Mesepisternal tubercles ( Figs 25, 26 View FIGURES 25 – 34 ) high (2.36 mm) and divergent in dorsal view ( Fig. 25 View FIGURES 25 – 34 ) with the apex subtruncated ( Fig. 25 View FIGURES 25 – 34 ). Cercus ( Figs. 57–59 View FIGURES 57 – 65 ) shorter than S 10, about 1 / 3 shorter than paraprocts, with short ventro-medial subtriangular process ( Figs 58–59 View FIGURES 57 – 65 ). Penis typical for Tuberculobasis (as in Fig. 89 View FIGURES 87 – 94 ).

Dimensions (mm). Abdomen 31.2; HW 19.2

Remarks. By having high metepisternal tubercles with their bases adjacent to mid-dorsal carina, paraproct much longer than cercus, and no lateral lobes in hind prothoracic lobe, T. arara belongs in the costalimai species group together with T. guarani , T. inversa , T. costalimai , and T. williamsoni . It is closer to