Cataulax radians, Grazia & Campos & Becker, 2000

Grazia, Jocélia, Campos, Luiz A. & Becker, Miriam, 2000, Revision of Cataulax Spinola, with Architas Distant as a New Synonymy (Heteroptera: Pentatomidae: Discocephalini), Anais da Sociedade Entomológica do Brasil 29 (3), pp. 475-488 : 486

Cataulax radians , n. sp.

( Figs. 2D , 3D , 4D , 5D )

Obovate, glossy above, semiglossy to matter beneath; reddish fulvous; punctures fuscous to ferruginous, coarser above.

Distribution of the punctures on head, pronotum and hemelytra as in C. froeschneri . Antennae missing. Apex of scutellum narrowly rounded (not subtriangular); punctures fuscous and arranged in four vague, subparalell, longitudinal bands, which are evanescent posteriorly; central basal portion of disc obsolescently punctured. Corium hardly exceeding scutellum; membrane clear amber, with a large darker basal spot, veins brownish. Connexivum orange-ochraceous, punctures arranged in two longitudinal rows, a marginal one and a submarginal one with a narrow laevigate band between them; basal angles of segments narrowly and vaguely infuscated. Rostrum reaching middle offourth abdominal sternite. Median mesosternal plate quite broad, conspicuously convex anteriorly. Posterior margin of metasternum almost as wide as anterior margin, obtusely sinuate, abdominal tubercle stout, obtuse. Median abdominal furrow very shallow.

Male. Apicalmargin ofhemelytral membrane straight, veins subparalell ending well before apical margin. Apical margin of the seventh sternite shallowly and evenly arcuate across the width, less esclorotized there ( Fig. 2D ).

Measurements (mm). Lengthofhead 1.64; anteocular length 1.14; width of head 3.28; interocular width 1.96; interocelar width 0,98; length of antennalsegments: I 0.65, II-V missing; pronotallength 2.62; pronotalwidth 6.72; length of scutellum 5.74; width of scutellum 4.59; abdominal width 6.39; total length 10.66.

Cup-like part of pygophore wider than long. Postero-lateral angles directed outwards, concave along its inner surface, denticle of internal border obsolete. Proctiger with 1+1 carina at mid length, converging posteriorly. Parameres spatulate, simple, external apex notched ( Figs. 3D , 4D , 5D ).

Female: unknown.

Type-material. Holotype male, PERU, Rio Santiago, XI/23/1924, H. Bassler ( AMNH). Comments. Similar to C. eximius , C. pudens and C. froeschneri by the pattern of dorsal punctures forming bands and patches; it can be distinguished from them by the size, being thesmallest one .

Figures

Figure 2. Male’s hemelytral membrane.A) C. eximius Stål, 1860; B)C. froeschneri, n. sp.; C) C. pudens (Distant, 1889); D) C. radians, n. sp.; E) C. subtiliterconspersus, n. sp.

Figure 3. Pygophore, dorsal view. A) C. eximius Stål, 1860; B) C. froeschneri, n. sp.; C)C. pudens (Distant, 1889); D) C. radians, n. sp.; E) C. subtiliterconspersus, n. sp. (db = dorsal border, pla = postero-lateral angles, par = parameres, prpro = process of proctiger, vm= ventral margin, IX= 9th abdominal segment, X= 10th abdominal segment).

Figure 4. Pygophore, ventral view. A) C. eximius Stål, 1860; B) C. froeschneri, n. sp.; C) C. pudens (Distant, 1889); D) C. radians, n. sp.; E)C. subtiliterconspersus, n. sp. (pla = posterolateral angles, par = parameres, vb= ventral border, IX= 9th abdominal segment, X= 10th adominal segment).

Figure 5. Pygophore, posterior view. A) C. eximius Stål, 1860; B)C. froeschneri, n. sp.; C)C. pudens (Distant, 1889); D) C. radians, n. sp.; E) C. subtiliterconspersus, n. sp. (db = dorsal border, pla = postero-lateral angles, par = parameres, prpro = process of proctiger, vb = ventral border, X = 10th abdominal segment).