Roscius niger, Stehlík & Jindra, 2010

Stehlík, Jaroslav L. & Jindra, Zdeněk, 2010, Two new species of the genus Roscius (Hemiptera: Heteroptera: Pyrrhocoridae), Zootaxa 2651 (1), pp. 59-63 : 62

Roscius niger sp. nov.

( Figs. 2 , 5 )

Type material. Holotype: ♀, MOZAMBIQUE: Zambezi province : ‘ Portugese E. Africa, [Mt.] Namuli, 4,600 ft, 20.vii.1932, J. Vincent Coll. ’ ( BMNH).

Description. Colouration ( Fig. 2 ). Head both dorsally and ventrally, as well as all ventrites and outer female genitalia red. Pronotum (except lateral and posterior margin), scutellum, clavus, corium, membrane, pleura I–III, basisterna I–III, legs, antennae and labium black. Lateral (narrowly) and posterior margin (more widely) of pronotum, prosternal collar, pronotal epipleuron, posterior pleural flanges I–III and epicoxal lobes I–III yellow.

Structure. Head horizontally positioned, eye temple very small, antennifer large, protruding sideways, antennae long, jugum not gibbose, narrowed towards its apex, tightly adjoining clypeus. Labium surpassing half of the ventrite IV. Pronotum anteriorly conspicuously narrowed, sides of pronotal lobes remarkably divergent towards its base, pronotal lobe remarkably convex towards base.

Outer female genitalia ( Fig. 5 ).

Measurements (mm). Female (holotype). Body length 16.47; head: length 2.21, width (including eyes) 2.19, interocular width 1.08; lengths of antennomeres: 1—2.97, 2—3.29, 3—2.21, 4—2.65; pronotum: length 2.97, width 4.70; scutellum: length 2.27, width 2.70; corium: length 9.18, width 2.97.

Differential diagnosis. Roscius niger sp. nov. differs from all described Roscius species by its unicolorous black corium.

Etymology. The species epithet is composed from the Latin adjective niger , - a, - um, meaning black, in reference to its unique colouration of hemelytra.

Distribution. Mozambique (Zambezi province).

Figures

FIGURES 1–2. Habitus. 1—Roscius diversus sp. nov., ♂, holotype; 2—Roscius niger sp. nov., ♀, holotype.

FIGURES 3–5. 3–4—Roscius diversus sp. nov. 3–pygophore, dorsal view; 4—outer female genitalia. 5—Roscius niger sp. nov., outer female genitalia.