Cataulax, Spinola, 1837

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 : 477-478

Key to the species of Cataulax

1.Scutellum uniformly finely and densely punctured .......... subtiliterconspersus n. sp.

Scutellum withpunctures not uniform in size, distributed in lines or patches ................... 2

2.Posterior marginof metasternum almosttwice largerthananterior margin; median mesosternal plate almost flat ...................... eximius (Stål) Posterior margin of metasternum almost as wide as anterior margin; median mesosternal plate conspicuously convex anteriorly ...... 3

3. Parameres with lobes and spines ( Figs. 3B , 4B , 5B ) ........................... froeschneri n. sp.

Parameres simple .................................... 4

4. Internal border of postero-lateral angles of pygophore with a lobe in a percurrent flange ( Fig. 3C ) .......................... pudens (Distant)

Internal border of postero-lateral angles of pygophore with an obsolete denticle ....... ........................................... radians n. sp.

Figures

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).