Cataulaxpudens ( Distant, 1889 )

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 : 484-486

Cataulaxpudens ( Distant, 1889) ( Figs. 2C , 3C , 4C , 5C , 6D-F , 7B , 8B )

Architaspudens Distant, 1889: 323 ; Lethierry & Severin, 1893: 85; Kirkaldy, 1909: 216. NEW COMBINATION

Distinctly shorter, and less densely punctured than in C. eximius , but sometimes punctuation is arranged in longitudinal lines or in patches as in that species. Apex of scutellum subtriangular. Corium hardly longer than scutellum. Rostrum clearly surpassing the middle of the fourth abdominal sternite. Posterior margin of metasternumalmost as wide as anterior margin; median mesosternal plate conspicuously convex anteriorly.

Male. Apicalmargin ofhemelytral membrane slightly truncate and feebly sinuate, veins subparalell, ending well beforeapical margin ( Fig. 2C ).

Measurements (mm). Length of head1.84(1.80-1.96); anteocularlength 1.22(1.14-1.31); width of head 3.68(3.60- 3.77); interocular width 2.12(1.96-2.29); interocelar width 1.06(0.98-1.14); length of antennal segments: I 0.65, II 1.26(1.14-1.31), III 1.26(1.14-1.31), IV 1.88(1.80-1.96), V 1. 96; pronotallength 3.03(2.95-3.11); pronotal width 7.54(7.38-7.70); length of scutellum 6.59(6.39-6.88); width of scutellum 5.08; abdominal width 7.21(7.05-7.38); total length 11.43(11.15-12.13).

Pygophore sub-rectangular; lobe of internal border of postero-lateral angles in a percurrent flange. Parameres simple, depressed, elongate-oval in outline ( Figs. 3C , 4C , 5C ). Proctiger with 1+1 carina at mid length, converging posteriorly. Phallus : articulatory apparatus stout, wider than phallotheca; processus capitati slender. Vesica with 1+1 dorsal process at base, processus vesicae shallow, collar like; ductus seminis distalis totally included in vesica ( Figs. 6D-F ).

Female. Measurements (mm). Lengthofhead 2.18(1.96-2.29); anteocularlength 1.26(1.14- 1.31); width of head 3,83(3.60-4.10); interocular width 2.36(2.29-2.46); interocelar width 1.23(1.14-1.39); length of antennal segments: I 0.65, II 1. 44(1.31-1.47), III 1.27(1.14-1.31), IV 2.07(1.88-2.29), V 2.00(1.88-2.13); pronotallength 3.37(3.11- 3.60); pronotalwidth 7.79(7.38-8.20); length of scutellum 6.75(6.39-7.05); width of scutellum 5.05(4.92-5.24); abdominal width 7.38(6.72-8.03); total length 12.59(11.80- 13.61).

Gonocoxites 8 wider than long, sutural borders rectilinear, adjoining each other; distal border angulate. Laterotergites 9 simple, just surpassing transverse band connecting laterotergites 8 dorsally. Posterior borders of laterotergites 8 smoothlyrounded ( Fig. 7B ). Anterior border of gonocoxites 9 concave, posterior border almost rectilinear; gonapophyses 9 with 1+1 thickenings near anterior limits. Orificium receptaculi surrounded by a conical, simple thickening of vaginal intima, chitinellipsen at each side of its base. Capsula seminalis simple, globose ( Fig. 8B ).

Type. Holotype female deposited at BMNH examined. Type locality: Volcan de Chiriqui, 2-3000ft, Panamá.

Material Examined. Panama: Canal Zone: male, female, Barro Colorado Island , V/24/ 1957, F. Schrader ( AMNH); male, female, idem, IV/24/1962, H. Ruckes ( AMNH); female, idem, VII/18/1956, C. W. & M. E. Rettenmeyer ( SEM); female, idem, V/10-17/ 1964, WD & SS Duckworth ( USNM); San Jose: male, Pearl Island , V/25/1944, Morrison JPE, collected at light ( USNM); Porto Belo: female, IV/17/1912 ( AMNH); Gatum Lake: male, Tres Rios Plantation , IX/04/1931, TOZschokke, E. P. Van Duzee Collection ( AMNH); Venezuela: Zulia: female, Caimera, Sierra de Perija , IV/11/1960 ( MHNS).

Comments. Similar to C. radians by having simple parameres and membrane with subparalell veins ending well before apical margin. In C. pudens the apicalmargin of hemelytral membrane isslightly truncate and feebly sinuate but in C. radians it is straight.

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