Rosalba parva, Galileo, Maria Helena M. & Martins, Ubirajara R., 2013

Galileo, Maria Helena M. & Martins, Ubirajara R., 2013, Nine new species of the genus Rosalba (Coleptera, Cerambycidae, Lamiinae, Apomecynini) from South America, Zootaxa 3709 (3), pp. 285-295 : 289-290

Rosalba parva sp. nov.

( Fig. 5 )

Description. Resembles Rosalba malleri ( Melzer, 1934) , but is distinguished by the elytra with reddish-brown longitudinal bands: (1) on sides of scutellum, short, double the length of the scutellum; (2) at base, parallel to (1), a little longer; (3) beginning at the base, with a very narrow line up to the anterior third where it goes up to the middle and again narrows up to the apical third; (4) in the apical third, contiguous with suture, from the apical third to apical fourth; (5) after the middle, in the same alignment as (2), from close to middle to the apical fourth; (6) on the epipleura, from in the anterior third to apical fourth; (7) small dorsal spot, apical, bifurcate in the anterior margin. On the side of elytra, lateral spot, reddish brown, beginning before the middle on the outer side of band (3) and extending up to the apical fourth and with projection that extends on the dorsum in the apical third up to band (4).

Measurements, in mm. Total length, 4.5; prothorax length, 0.7; prothorax width, 0.9; elytron length, 3.3; humeral width, 1.3.

Etymology. Latin, parvus = little; alluding to the measurements.

Type-material. Holotype female, ECUADOR: Coca, V.1965, Peña col. (MZSP). There are at least two toponyms with the name Coca, one in Azuay and another in Francisco de Orellana.

Discussion. By the elytra with longitudinal reddish-brown lines, Rosalba parva can be compared with R. malleri ( Melzer, 1934) of southern Brazil and R. tanimbuca described above. It differs from R. malleri by the base of elytra with more than one reddish-brown longitudinal band. It is distinguished from R. tanimbuca by the pronotum brownish with lateral band of whitish-yellow pubescence.

Figures

FIGURES 1 – 6. 1, Rosalba mediovittata Galileo & Martins, sp. nov., holotype female, total length, 7.0 mm; 2, Rosalba cacapyra Galileo & Martins, sp. nov., holotype female, total length, 7.1 mm; 3, Rosalba tanimbuca Galileo & Martins, sp. nov., holotype male, total length, 4.9 mm; 4. Rosalba malleri (Melzer, 1934), holotype, total length, 5.4 mm; 5, Rosalba parva Galileo & Martins, sp. nov., holotype female, total length, 4.5 mm; 6, Rosalba maculosa Galileo & Martins, sp. nov., holotype female, total length, 8.8 mm.