Zikanita plumbea, Machado, Vanessa S. & Monné, Marcela L., 2011

Machado, Vanessa S. & Monné, Marcela L., 2011, Synopsis of Zikanita Lane (Coleoptera: Cerambycidae: Lamiinae), Zootaxa 2795, pp. 65-68 : 67

Zikanita plumbea sp. nov.

Fig. 1

Description. Female holotype. Integument dark brown. Body mostly lead-gray and covered with shiny silver metallic pubescence under light and sparse erect white hairs.

Antennomeres IV–XI decreasing in length; antennomere XI about half length of antennomere III.

Prothorax about 2/3 broader than long. Pronotum with a spot of black pubescence at outer side of each tubercle. Intercoxal process of mesosternum with rhomboid tubercle. Sulcus of metasternum almost reaching anterior margin.

Elytra about 4x as long as prothorax, slightly elevated at base, without cristae. Elytral apices sinuous, with outer angles feebly projected. General pubescence concolor with body, except two oblique black bands, one medial and one on apical one-third; a narrow longitudinal carinae follows the elytral suture from the basal third nearly to the apex. Male. Very similar to female, differing in the antennae exceeding elytral apices at antennomere VIII.

Measurements, in mm, male/female. Total length (from head to elytral apices), 18.0/17.0–19.6; prothorax length, 3.5/ 2.6–3.6; prothorax width, 6.0/5.0–6.0; elytral length, 13.0/12.0–14.0; humeral width, 7.2/6.9–8.4.

Etymology. The specific epithet refers to the color of the pubescence of this species.

Type material. Female holotype, BRAZIL, Mato Grosso: Rondonópolis, 300 m (no date and collector) ( MNRJ). Paratypes, Goiás: Jataí, female, 1847, M. de Castelnau col. ( MNHN); male, female, XII.1897 – I.1898, Pujol col. ( MNHN).

Remarks. Zikanita plumbea sp. nov. ( Fig. 1 ) differs from all other species of the genus in the color of the pubescence and the integument and the elytral apices not spinose.

Zikanita plumbea sp. nov. may be confounded with Psapharochrus nigricans (Lameere, 1885) . Psapharochrus nigricans ( Fig. 5 ) can be distinguished by the elytral apex with a prominent spine, the planar intercoxal process of the mesosternum, the elytra lacking black setae and white hairs on the entire the body, the posterior median region of the pronotum with a band of whitish pubescence and the apical margins of the scutellum not elevated. In Z. plumbea ( Fig. 1 ) the elytral apex is only slightly projected and lacks a spine, the intercoxal process of mesosternum is tubercled, the elytra has black setae and the body white hairs, the posterior median region of the pronotum lacks a band of whitish pubescence and the apical margins of the scutellum are slightly elevated.

Figures

FIGURES 1 – 5. 1, Zikanita plumbea, female holotype; 2, Zikanita perpulchra, male; 3, Zikanita biocellata, female; 4, Zikanita argenteofasciata, female; 5, Psapharochrus nigricans, female.