Renda brasiliana ( Bernhauer, 1927 )

Márquez, Juan, 2010, Revision of the genus Renda Blackwelder, 1952 (Coleoptera: Staphylinidae: Xantholinini) 2686, Zootaxa 2686 (1), pp. 1-61 : 36-37

publication ID	https://doi.org/ 10.11646/zootaxa.2686.1.1
DOI	https://doi.org/10.5281/zenodo.10538831
persistent identifier	https://treatment.plazi.org/id/237A597D-FF8E-FFF1-7482-C2F3FB03AB4B
treatment provided by	Felipe
scientific name	Renda brasiliana ( Bernhauer, 1927 )
status

Treatment

Renda brasiliana ( Bernhauer, 1927) View in CoL

Plochionocerus brasiliana Bernhauer, 1927: 164 ; Herman, 2001: 3747 ( Renda View in CoL ).

Type material. Holotype, female: “ Rio de Janeiro, Brasilien, Standinger / brasilianus Bernh. Type unic.” ( FMNH).

Additional material (4 specimens). “ BRAZIL: Guanabara , Rio de Janeiro, X-1968, M. Alvarenga ” (1♀, AMNH) . “ Goias, Jataí , X-1972, F. M. Oliveira ” (1♂, AMNH) . “ Minas Gerais, Pampulha, UFMG Campus , 830 m, 19°52´0”S, 43°38´0”W, 28-V-1997, J. C. R. Fontenelle, BRA1F96 109, ex: malaise 3” (1♀, SEMC) GoogleMaps . “ PARAGUAY: N. Paraguay, Molinoscue (Seharz leg.) / Pl. (Leptotr.) brasilianus (?) Brh.” (1♀, FMNH) .

Redescription. Total length 12.5–14.3 mm. Head and pronotum black; antennomeres 2–11, mouthparts, legs, elytra and visible abdominal segments 1–5 (except posterior border of segment 5) reddish brown; posterior border of visible abdominal segment 5, entire segment 6 and genital segment yellow.

Head. Ovally elongate, with obtuse posterior angles (similar to Fig. 17 View FIGURES 11–19 ); 1.22x as long as wide; dorsally and ventrally convex; dorsal surface with dense umbilicate punctures evenly distributed; ventral surface with dense umbilicate punctures separated by 1–2x their width ( Fig. 24 View FIGURES 20–24 ); temple convex ( Fig. 27 View FIGURES 25–34 ); eyes 0.28x as long as head, interocular distance 0.67x cephalic width; first antennomere 1.79x as long as antennomeres 2–3 combined, apical antennomere 0.94x length of antennomeres 9–10 combined; labrum slightly bilobed ( Fig. 54 View FIGURES 53–61 ); mandibles with external channel; apical maxillary palpomere conical ( Fig. 40 View FIGURES 35–46 ), 1.24x as long as preapical palpomere; apical labial palpomere moderately wide and flattened toward apex ( Fig. 44 View FIGURES 35–46 ), nearly twice as long as preapical palpomere.

Thorax. Pronotum 1.41x as long as wide; with dense fine punctures, except for wide longitudinal impunctate area; with depressed area at each side of posterior third slightly visible ( Fig. 51 View FIGURES 47–52 ). Elytra 1.17x as long as pronotum; elytral disc with pale setae as dense as those on abdomen. Prosternum with setae less dense than those on mesosternum and metasternum.

Abdomen. Densely covered with long, pale setae.

Aedeagus. Elongate; total length 1.8 mm; with short parameres (0.28x length of median lobe); apical area of median lobe 0.21x total length of median lobe and internal sac without sclerotized structures ( Fig. 77 View FIGURES 62–77 ).

Variation. One specimen has black elytra and abdomen (not reddish brown). Three specimens have the dorsal surface of the head clearly convex. Two specimens have the head slightly widened posteriorly.

Comparison. The black coloration of the body, posterior border of fifth visible abdominal segment and pregenital and genital segments yellow, head with temple convex and conical apical maxillary palpomere may confuse R. brasiliana with R. debilis . Renda brasiliana can be distinguished by the ovally elongate head, convex ventral surface of the head, large pronotum, elongate aedeagus, symmetrical parameres and the internal sac with weakly sclerotized structures. On the contrary, R. debilis has subquadrate head, slightly convex ventral surface of the head, short pronotum, ovally elongate aedeagus with the base of median lobe widened, asymmetrical parameres and internal sac with sclerotized structures.

Geographic distribution. Brazil ( Herman, 2001) and Paraguay (first national record).