Ascra abdita (Distant, 1890) Distant, 1890

Santos, Bianca Tamires Silva Dos, Silva, Valeria Juliete Da & Fernandes, Jose Antonio Marin, 2015, Revision of Ascra with proposition of the bifida species group and description of two new species (Hemiptera: Pentatomidae: Edessinae), Zootaxa 4034 (3), pp. 445-470 : 459-462

Ascra abdita (Distant, 1890) n. comb.

( Figs. 31−38 , 56 , 63 , 66 )

Edessa abdita Distant, 1890: 350 ; Lethierry & Severin, 1893: 188; Kirkaldy, 1909: 154.

Lectotype: Male. Mexico, Tepic (Schumann), Omilteme, Guerrero, 8000ft, H. H. Smith (BMNH). Examined.

Paralectotypes: One female. Same date, July. One female. Tepic, Mexico, July. Schumann. (BMNH). Examined.

Material examined (n: 45). MEXICO. Nayarit: 2♂ 18 mi. nw. Ixtlan del Rio. VII −25−66. P. M. & P. K. Wagner ( TAMU); ♀ 13 mi. NW Ahuacatlán. VII −25−59. R. B. Selander & J. C. Schaffner ( TAMU). Jalisco: ♀ 11 mi. n. Autlan, July 6, 1984. Carroll, Schaffner, Friedlander ( TAMU); ♀ Union de Tula dal, VII −13−65 ( TAMU). Colima: ♀ 21 mi. sw., Comala. VII −20−66. P. M. & P. K. Wagner ( TAMU). Michoacán: ♂♀ 18.8 mi. NE Arteaga. July 31, 1988. 3100. Ferreira, Schaffner ( TAMU). Guerrero: ♀ 6 km W de Mezcotelpec. Estación Microondas. 14–06–2001. E. Barrera & H. Brailovsky ( UNAM); ♂ Coacoyula. 13–VI −2001. H. Brailovsky & E. Barrera ( UNAM); ♂ 11.2 mi. N. Iguala, elev. 4300 ft. July 5, 1987. Kovarik, Schaffner ( TAMU); 2♀♂ 32 miles southeast Petatlan. July 10, 1985. Jones, Schaffner ( TAMU); ♂ 32 mi. se. Petatlan. July 14, 1984. Carroll, Schaffner, Friedlander ( TAMU); 2♂ 3♀ 13 19 mi. S. Iguala, July 9, 1974. Clark, Murray, Ashe, Schaffner ( TAMU); ♂♀ ( UFRG); ♀ 8 mi. w Iguala. July 18, 1984. Carroll, Schaffner, Friedlander ( TAMU). Puebla: ♂ 13.7 miles southwest Izucar de Matamoros. July 21, 1981. Bogar, Schaffner, Friedlander ( TAMU). Oaxaca: ♂ 5 mi. N. La Ventosa. 4 July 1970. R. E. Beer & Party ( DRC); ♀ 3 mi. SE Rio Hondo. July 17, 1981. Bogar, Schaffner, Friedlander ( TAMU); ♀ ( UFRG); 2♀ 1 mile east of Jalapa del Marquez. August 4, 1980. Schaffner, Weaver, Friedlander ( TAMU); 2♀ 32.8 mi, northwest Jalapa del Marques. July 13, 1971. Clark, Murray, Hart, Schaffner ( TAMU); ♀ 1.5 mi e. Tapanatepec. July 7, 1971. Clark, Murray, Hart, Schaffner ( TAMU); ♀♂ 2.1 mi. nw. Totolapan. July 21, 1974. Clark, Murray, Asher, Schaffner ( TAMU); ♀♂ 2.6 mi, e. Tapanatepec. July 11, 1971. Clark, Murray, Ashe, Schaffner ( TAMU); ♀ 10.5 mi. w. Tehuantepec. July 22, 1974. Clark, Murray, Ashe, Schaffner ( TAMU); ♀ 2♂ 3.3 mi. e. Rio Hondo. August 5, 1980. Schaffner, Weaver, Friedlander ( TAMU); 2♂ ♀ ( UFRG). Chiapas: ♀♂ Tuxtla, G. Sumidero. 9–VI–1991. F. W. Skillman Jr. beaten from slash. (JEE).

Measurements: Head length (1.4–1.6); head width (2.3–2.4); pronotal length (3.0–3.7); pronotal width (6.7– 8.1); total length (11.0–14.0); abdominal width (6.5–8.2), length of antennal segments I − (0.5−0.6); II- (0.7−0.9); III − (1.0−1.1); IV − (1.7−1.8); V − (2.1−2.2).

Diagnosis. Body light green; hemelytron dark yellow with embolium and clavus yellow. Punctures large and black restricted to pronotum, scutellum and hemelytron ( Fig. 56 ). Hemelytron with corium remarkably translucent and membrane colorless. Legs with black macules at base of setae ( Fig. 63 ).

Head. Mandibular plates rugose and densely punctate, punctures concolorous, rarely dark brown. Cephalic disc and clypeus rugulose and impunctate. Bucculae with concolorous punctures; ventral margin curved; completely enclosing first rostral segment. Antennae with black macules on first three segments.

Thorax. Pronotum with black punctures sparse and irregularly distributed, anterior margin with small dark brown or concolorous punctures; anterolateral margin pale green or yellow. Scutellum with large sparse punctures on anterior and central parts, and small concentrated punctures on lateral and distal end parts; apex acute. Corium with punctuation dark brown, small and dense, becoming black and larger on embolium and clavus ( Fig. 56 ). Ventral surface with some parts densely punctate, punctures concolorous but brown on pro and metapleuron. Evaporatorium rugose, impunctate and concolorous or whitish. Peritreme green, almost straight and long, reaching ¾ of the distance between ostiole and lateral margin of metapleuron. Metasternal process green and flattened; arms of anterior bifurcation wide, divergent ( Figs. 31−32 ), receiving part of fourth rostral segment, apex of arms rounded or acuminated. Legs yellow with small black macules, meso and metafemora with punctures only on distal part. Black spots coinciding with insertion of setae on tibia.

Abdomen. Dorsal surface green with small concolorous punctures uniformly distributed. Connexival segments with punctures concolorous or brown, thin and densely distributed, except on medial impunctate spot ( Fig. 56 ); posterolateral angles with small black spine. Ventral surface with punctures concolorous, sparse and irregularly distributed; pseudosutures and intersegmental areas concolorous ( Fig. 63 ).

Female genitalia. Gonocoxites 8 setose, slightly convex and densely punctate, some punctures black and large; lateral part with a yellow ridge; distal margin strongly acuminate and rugulose. Laterotergites 8 barely convex, with a few punctures close to distal margin; distal margin dark and slightly projected with small black apical tooth just surpassing laterotergites 9. Gonocoxites 9 subrectangular, setose and not punctate. Laterotergites 9 setose, broad and rugulose, ventral half strongly excavated and distal part tumid ( Fig. 34 ); apex with a tiny black tooth. Thickening of vaginal intima rounded ( Fig. 33 ).

Male genitalia. Pygophore. Dorsal rim rough and dark yellow with few punctures and conspicuously raised. Posterolateral angles slightly developed posteriorly ( Figs. 35−36 ); punctate on outer side. Superior processes of genital cup clavate, distal part flat or slightly concave ( Fig. 37 ). Parameres yellow with black margin, subtriangular, medially concave; anteriorly directed process triangular, posterior smaller and laterally directed ( Fig. 37 ); base not tumid. Proctiger with posterior face oval and emarginate ( Fig. 37 ); lateral excavations narrow ( Fig. 35, 37 ). Ventral rim rugose medially, setose and punctate; medial excavation widely open, bottom of excavation thin with texture and color different from the rest of the ventral rim; expansions rounded, slightly tumid and barely developed, not reaching level of posterolateral angles in ventral view ( Fig. 36 ). Phallus with distal acuminate process almost inconspicuous; vesica with ventral process developed ( Fig. 38 ).

Comments. Distant (1890) described Edessa abdita based on one male and two females from Mexico, but did not designate a holotype, thus we are designating the male syntype as the lectotype of the species. Distant first described this species comparing with Edessa conspersa and provided readily identifiable diagnostic characteristics for A. abdita , which include: pronotal margin more convex and without rows of punctures; sternum without green spots; scutellum less thickly punctate. In addition to Distant’s characters A. abdita can be readily separated from A. conspersa by the pronotum more sparsely and irregularly punctate; corium translucent; membrane of the wing colorless, and ventral abdominal surface without black punctures.

Distribution ( Fig. 66 ): MEXICO: Nayarit, Jalisco, Colima, Michoacán, Guerrero, Puebla, Oaxaca, Chiapas.

Figures

FIGURE 66. Distribution of the species of the bifida group of Ascra.

FIGURES 31 – 38. Ascra abdita Distant, 1890. 31 – 32 Metasternal process; 31 — ventral view; 32 — lateral view. 33 — Female, genital internal. 34 — Female, genital plates. 35 – 37 Male, pygophore; 35 — dorsal view; 36 — ventral view; 37 — posterior view. 38 — Phallus. (Scale = 1 mm).

FIGURES 52 – 58. Dorsal view of the species of Ascra. 52 — A. bifida; 53 — A. cordifera; 54 — A. championi; 55 — A. petersii; 56 — A. abdita; 57 — A. flavoscutellata; 58 — A. vluteum. (Scale = 5 mm).

FIGURES 59 – 65. Ventral view of the species of Ascra. 59 — A. bifida; 60 — A. cordifera; 61 — A. championi; 62 — A. petersii; 63 — A. abdita; 64 — A. flavoscutellata; 65 — A. vluteum. (Scale = 5 mm).