Cataulaxsubtiliterconspersus, 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 : 487

Cataulaxsubtiliterconspersus n. sp. ( Figs. 2E , 3E , 4E , 5E , 6G-I , 7C , 8C )

Obovate, glossy, finely and densely punctured dorsad; punctures fuscous, vaguely arranged in lines. Shorter than C. eximius .

Scutellum with apex subtriangular, punctures uniformly distributed, not arranged in patches or lines. Corium hardly exceeding scutellum; membrane clear amber, with a darker basal spot, veins a little darker. Connexivum with a vague submarginal line of punctures; antero-lateral angles with darker punctures. Rostrum apparently attaining posterior margin of fourth abdominal sternite. Median mesosternal plateconspicuously convex anteriorly. Posterior margin of metasternum almost as wide as anterior margin. Median abdominal furrow shallow.

Male. Apical margin of membrane subtruncate, very feebly sinuate, three or four external veins convergent to an inconspicuous submarginal peg ( Fig. 2E ).

Measurements (mm). Lengthofhead (1.80-2.13); anteocularlength 1.31; width of head (3.6-4.1); interocular width 2.29; interocelar width 1.14; length of antennal segments: I 0. 65, II 1. 31, III 1. 31, IV 1. 96, V missing; pronotallength (2.78-3.11); pronotal width (7.38-7.70); length of scutellum (6.23- 7.05); width of scutellum (4.75-5.41); abdominal width (6.88-7.21); total length (11.80-12.46).

Pygophore subrectangular. Denticle of internal border of postero-lateral angles large triangular. Three branchesof paramere flaplike, the distalone at right angles with the external and internal ones ( Figs. 3E , 4E , 5E ). Carina of proctiger inconspicuous. Phallus : articulatory apparatus robust, expanded dorsad, ponticulus transversalis large; processus capitati slender. Vesica with 1+1 dorsal process at base, processus vesicae wide, collar like; ductus seminis distalis included in vesica. ( Figs. 6G-I ).

Female. Measurements (mm). Lengthofhead (2.29-2.37); anteocularlength (1.14-1.39); width of head (3.77-4.10); interocular width (2.29-2.46); interocelar width (1.14-1.55); length of antennal segments: I 0.65, II (1.47- 1.64), III 1. 31, IV (2.13-2.29), V 2. 21; pronotallength (3.28-3.44); pronotalwidth (7.70-8.20); length of scutellum (6.23-6.88); width of scutellum (5.08-5.41); abdominal width 6.88; total length (12.78-13.28).

Gonocoxites 8 not much wider than long, sutural borders rectilinear, adjoining each other except at base; distal border almost rectilinear. Laterotergites 9 simple, not reaching transverse band connecting laterotergites 8 dorsally. Posterior borders of laterotergites 8 smoothlyrounded ( Fig. 7C ). Esclerotizedarea of gonocoxites 9 thin, almost inconspicuous, limits between gonocoxites 9 and gonapophyses 9 not clear. Orificium receptaculi surrounded by a conical, simple thickening of vaginal intima, chitinellipsenat each side of its base. Capsula seminalis simple, globose ( Fig. 8C ).

Type-material. Holotype male Brazil, Roraima, Rio Uraricoera, Ilha Maracá , XI/ 20-30/1987, J. A. Rafael, fogging ( INPA) . Paratypes: French Guyana: Cayenne male, E. P. Van Duzee Collection ( CAS) . Brazil: Pará: female, Tucuruí, Rio Trombetas , Ilha Tocantins, VII/31/1984, B. Mascarenhas ( MPEG) ; Amazonas: female, Manaus, III-IV/ 1976, Montouchet & Burheim ( DZRS) .

Comments. This species can bedistinguished from all others by the pattern of dorsal punctures.

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).

Figure 6. Phallus, dorsal, ventral, and lateral views respectively for each species. A-C)C. eximius Stål, 1860; D-F) C. pudens (Distant, 1889); G-I) C. subtiliterconspersus, n. sp. (bpl = basal plate, dc1 = dorsal connectives 1, dc2 = dorsal connectives 2, ds = ductus seminis distalis, me = membramblase, pc =processus capitati, ph =phallotheca, prph =processus phallothecae, prv1 = processus vesicae 1, prv2 = processus vesicae 2, pt = ponticulus transversalis, sg = second gonopore, v = vesica).

Figure 7. Female genital plates. A)C. eximius Stål, 1860; B)C. pudens (Distant, 1889); C)C. subtiliterconspersus, n. sp. (gc8 = gonocoxites 8, la8 = laterotergites 8, la9 = laterotergites 9, VII = 7th abdominal segment, X = 10th abdominal segment).

Figure 8. Female genital plates and ectodermal genital ducts. A)C. eximius Stål, 1860; B)C. pudens (Distant, 1889); C) C. subtiliterconspersus, n. sp. (aac = anterior anular crest, ch = chitinellipsen, cs = capsula seminalis, dr = ductus receptaculi, g9 = gonapophyses 9, gc9 = gonoxites 9, la9 = laterotergites 9, or = orificium receptaculi, pac = posterior anular crest, pi = pars intermedialis, tvi = thickening of vaginal intima, X = 10th abdominal segment