Thaumamannia urucuana, Guidoti & Montemayor & Campos & Guilbert, 2020

Thaumamannia urucuana

Guidoti et al., sp. nov. ( Fig. 35 View Figure 35 )

lsid: urn:lsid:zoobank.org:act:AE4DF1D4-69B9-48EC-9B79-02A64B87AC08

Diagnosis: This species resembles the most T. vanderdrifti , but can be recognized by the straight border of hemelytra on its anterior part at the scent gland level and by the tip of the anterior branch of the peritreme, which does not reach the hemelytra border like in T. vanderdrifti .

Description: Body: Dark brown, lighter on paranota and costal area; antennae, rostrum and legs yellowish ( Fig. 35A View Figure 35 ). Head: Strongly declined, pubescent; antenniferous process about one-third of the scape length; pedicel almost three times the scape length, basi- and distiflagellomeres missing; eyes reduced with few ommatidia; bucculae round, smooth and pubescent on its border, widest in the middle, with only few punctures in the middle of the bucculae, posterior border rounded ( Fig. 35F View Figure 3 View Figure 4 View Figure 5 ); rostrum reaching at least the third abdominal segment ( Fig. 35B, C View Figure 35 ). Thorax: Pubescent; coarsely punctate except for the callus region; anterior and posterior border straight; paranota explanate, not punctate, bearing scale-like projections on its border, projected frontwards surpassing most of the eyes; scutellum large, less than one-eighth of pronotum maximum width ( Fig. 35E View Figure 35 ); sternal laminae narrow, punctate. Hemelytra: Coriaceous, coleopteroid, ovate, densely pubescent and remarkably convex; carina-like vein extending from the anterior border to the posterior third of the hemelytra; deeply and evenly punctate; costal area with scale-like projections on its border, with one row of inner punctures, anterior border straight, revealing scent gland dorsally. Scent gland: Anterior branch gradually projected laterally, tip tilted horizontally, large, same size as the rest of the anterior branch, much more projected than base of anterior branch ( Fig. 35D View Figure 35 ), edges thicker on the tip; posterior branch curved, with considerably enlarged tip with a cracked texture; sulcus prominent on both branches, fading only distally on the anterior branch tip; evaporatorium straighter than curved anteriorly, projected up to half of mesopleuron ( Figs 17C View Figure 17 – 35C View Figure 35 ).

Measurements: BL, 1.77 (1.79; 1.79 xM; 1.75 xF); BW, 1.23 (1.24; 1.24 xM; 1.22 xF); HL, 0.12 (0.10; 0.10 xM; 0.15 xF); HW, 0.34 (0.32; 0.32 xM; 0.36 xF); ID, 0.23 (0.23; 0.23 xM; 0.23 xF); PL, 0.37 (0.40; 0.40 xM; 0.34 xF); PW, 1.03 (1.06; 1.06 xM; 0.99 xF); AS, 0.12 (0.13; 0.13 xM; 0.11 xF) and AP, 0.32 (0.32; 0.32 xM).

Etymology: This species was named based on Urucu, its type locality.

Distribution: Described from Brazil; holotype locality is in the State of Amazonas, along the [Urucu-Coari-Manaus gas pipeline]; paratype locality was reported as missing (J. A. M. Fernandes, pers. comm. to the lead author).

M a t e r i a l e x a m i n e d: H o l o t y p e x M: B R A Z I L: Amazonas : Petrobras-Urucu, 25 October 2006, S. Dias col. [clareira 3, método de Winkler] [ SID 103 ] ( MPEG) . Paratype: BRAZIL: Pará state. [ Hemiptera 7º P10 (E)] [ GCLBN26 ] [ Guidoti PhD – FR057] [Guidoti PhD – Vianaidinae 056] (GC).