Bebaiotes dorsivittata Fennah, 1947

Viegas, Eduarda Fernanda Gomes & Ale-Rocha, Rosaly, 2024, A century of Achilixiidae Muir, 1923 (Hemiptera: Auchenorrhyncha: Fulgoromorpha): taxonomic study of the genus Bebaiotes Muir, 1924 and description of eight new species from Brazil, Zootaxa 5413 (1), pp. 1-65 : 24-28

Bebaiotes dorsivittata Fennah, 1947

( Figs 13A – E ; 14A – G ; 15A – E ; 37E ; 40A, B ; 43 )

Bebaiotes dorsivittata Fennah, 1947: 188 , Figs 3a–b ; Wilson 1989: 491 (mention).

Type material. Holotype male ( NHM): Ecuador, Feltons [sic. Felton], 12 kilometres from Napo near Tena , April 8, 1923, F. X. Williams (examined by photography).

Condition of the holotype: Blade-mounted abdomen; Right forewing torn after the clavus.

Additional material examined. BRASIL, Rondônia, Ouro Preto do Oeste, Reserva INPA, 06–12.vii.1995, Arm [adilha] Malaise, J. A. Rafael & J. F. Vidal cols. (1 ♂, 1 ♀, INPA) . Amapá, Serra do Navio , estrada lagoa azul, 0˚52’52”N–51˚58’49”W, 18.iv.2004, Varredura, T. Câmara, A. Plant, J. A. Rafael cols. (1 ♀, INPA) ; Amazonas, Maraã – R. Japurá, Ilha Jaraqui , 26 a 28.x.1988, Armadilha Suspensa 1, 6 m, J. Dias col. (1♀, MPEG) ; idem, 29.x a 2.xi.1988 (1 ♀, MPEG) ; Pará, Benevides, Faz [enda] Morelândia , 1 a 2.vii.1988, Armadilha Suspensa 1, 6 m, F. F. Ramos col. (1 ♀, MPEG) ; idem, 2 a 4.vii.1988 (1 ♂, MPEG) ; Idem , 4 a 6.xii.1988 (1 ♂, MPEG) ; Acará, Ilha do Combu, 01.x.1989, Armadilha de Luz , R. B. Neto col. (1 ♂, MPEG) ; idem, 10.viii.1989 (2 ♀, MPEG) ; Belém— Brasília , km 90, F Jaboti, 14.ii.1976, M. F. Torres col. (1 ♀, MPEG) ; PERU, M[adre] de Dios, Parque Manu, Pakitza 340 m, 11˚55’48”N–71˚15’18”W, 16.x.1991, M. Casagrande Leg. (1 ♀, DZUP) .

Diagnosis. Dorsal stripe above upper half of frons extending to the apex of the mesonotum pale yellow ( Fig. 13D ). Median carina of clypeus almost touching the epistomal suture ( Fig. 13C ). MP vein of the forewing with seven branches ( Fig. 40A ). Dorsal margin of periandrium straight and ventral margin with short indentation ( Fig. 14G ).

Redescription (male and female). Measurements. Body length: male 3.6 – 5.0 mm (6,1 – 8 mm including wings) (N=4); female: 3.3 – 4.4 mm (6.9 – 7.2 mm including wings) (N=3).

Coloration. General body color light brown ( Figs 13 A, B ). Dorsal stripe above upper half of frons extending to the apex of the mesonotum, semitriangular spot in the latero-anterior region of the mesonotum, posterior region of the gena pale yellow ( Figs 13 A, D ). Epimeron and episternum yellow brown. Forewing dark brown, semihyaline, with white regions and basal half of the veins brown and apical half das veins reddish; narrow white stripes covering c-sc, icua cross-veins; basal region of MP vein white; narrow white stripe extending from the r-m 1 cross-vein to m-cu cross-vein; narrow white stripe extending from the r-m2 cross-vein to the MP 7 vein base; x-shaped region white covering the m-cu 2 cross-vein, median region of the CuA 1 vein and the icua cross-vein; narrow white stripe and short near apex of CuA 2; apex of clavus white; postclaval margin white ( Fig. 40A ). Hind wing semihyaline, light brown with hyaline regions ( Fig. 40B ). Legs light brown, except metacoxae and metafemur yellow brown ( Fig. 13A ). Abdomen light brown, except for a reddish diffuse spot on the sternites III, IV + V and VI ( Fig. 13A ).

Head: frons wide, distance between the lateral carinae of frons, on median portion, approximately half the maximum width of vertex ( Fig. 13C ). Clypeus approximately twice longer than its maximum width; median carina of clypeus strongly marked, almost touching the epistomal suture ( Fig. 13C ). Pedicel globose, approximately 3 times longer than scape ( Fig. 37E ). Scape long with cuticular denticles ( Fig. 37E ).

Thorax: anterior margin of pronotum slightly tapered, lateral longitudinal carinae of pronotum converging at an angle on anterior margin and subparallel to each other towards posterior margin; median longitudinal carina of pronotum present but weakly marked; posterior margin of pronotum shallowly concave in the middle; pronotum without pustules on posterior margin; median and lateral longitudinal carinae of mesonotum present but weakly marked ( Fig. 13D ).

Forewing: RA and RP veins with the apex strongly curved anteriorly; r-m cross-vein present; ir cross-vein distant from r-m2 cross-vein, not aligned; MP vein with seven branches with apex gently curved anteriorly; first bifurcation of MP vein arising after r-m cross-vein; m-cu cross-vein present; CuP vein approximately 3 times longer than Pcu + A1 vein; apex of clavus with straight angle ( Fig. 40 A ).

Hind wing: first bifurcation of MP vein arising before m-cu cross-vein ( Fig. 40B ).

Legs: metatibia with 7 apical spines; metatarsus with 6+5 apical spines.

Abdomen: posterior half of sternites IV + V and VI with four long, thin, whitish setae; posterior margin of sternites VII semi-rounded. Female ( Fig. 13B ). Similar to male, except coloration of gena, epimer and episternum yellowish and reddish stripe on posterior margin of the sternites III, IV + V and VI.

Male terminalia ( Figs 14A–G ): pygofer with posterior margin without projections, with sparse setae in posterior view ( Fig. 14A, B ). Gonostyli with truncated apex in lateral view, outer margin with short projection and with a pointed apex near apex and inner margin with some setae ( Figs 14D, E ). Phallic complex ( Figs 14F, G ): periandrium semitrapezoidal in dorsal view; dorsal margin of periandrium straight at the apex and ventral margin with short indentation apically ( Figs 14F, G ). Inner sclerotised plates narrowing towards the apex, with serrated margin and surface with small spiniform projections ( Figs 14 F, G ). Aal tube (segment X), short, apex smoothly reentrant in dorsal view, with sparse setae dorsally ( Fig. 14C ).

Female terminalia ( Figs 15A–E ): Pygofer with numerous setae in posterior view ( Fig. 15B ). Gonapophysis VIII (first valvula) robust, with sparse setae in the basal region and median region with small spiniform projections on apical half in lateral view; three lateroapical projection of unequal sizes with irregular teeth on dorsal margin in lateral view ( Fig. 15E ). Bursa copulatrix densely filamentous apically, straight apex, covered by setae laterally on apical half ( Fig. 15E ). Gonapophysis IX (second valvula) robust, forked on apical half, lobes with a pointed apex, strongly curved latero-ventrally in dorsal view ( Fig. 15D ). Gonoplac (third valvula) subtrapezoidal, apex rounded with several apical setae and sparse setae laterally ( Fig. 15C ). Anal tube (segment X), short, apex rounded, with sparse setae in dorsal view ( Fig. 15A ).

Variations. Variations in the coloration of the veins of the forewing, on basal half, have been observed in some specimens, from light brown to dark brown, and the median longitudinal carina of the mesonotum was absent in some specimens.

Distribution. Brazil (Amapá, Amazonas, Pará, Rondônia), Ecuador (Felton) and Peru (Madre de Dios) ( Fig. 43 ).

Comments. B. dorsivittata Fennah, 1947 differs from the other species of Bebaiotes by MP vein of the forewing with seven branches, dorsal margin of periandrium without indentation at the apex and ventral margin of periandrium with short indentation apically.

Figures

FIGURE 3. Bebaiotes amazonica sp. nov., female: A. Anal tube, dorsal view; B. Pygofer, posterior view; C. Gonoplac (third valvula), lateral view; D. Gonapophysis IX (second valvula), dorsal view; E. Gonapophysis VIII (first valvula), lateral view. Abbreviations: at, anal tube; dmp, dorsal margin projections; bc, bursa copulatrix; gnp, gonoplac; gnpf IX, gonapophysis IX; gnpf VIII, gonapophysis VIII; lb, lobes; lmp, lateroapical margin projections; py, pygofer. Scale bars: A–E = 0.1 mm.

FIGURE 13. Bebaiotes dorsivittata Fennah, 1947: A. Male habitus, lateral view; B. Female, habitus, lateral view; C. Male head, anterior view; D. Male head and thorax, dorsal view; E. Male abdominal process, lateral view. Scale bars: A, B= 1 mm; C, D = 0.5 mm; E = 0.3 mm.

FIGURE 14. Bebaiotes dorsivittata Fennah, 1947, male genitalia: A. Anal tube, pygofer and gonostyli, posterior view; B. Pygofer, lateral view; C. Anal tube, dorsal view; D. Gonostyli, left lateral view; E. Gonostyli, dorsal view; F. Periandrium and inner sclerotised plates, lateral view; G. Periandrium and inner sclerotised plates, dorsal view. Scale bars: A–G = 0.1 mm.

FIGURE 15. Bebaiotes dorsivittata Fennah, 1947, female: A. Anal tube, dorsal view; B. Pygofer posterior view; C. Gonoplac (third valvula), lateral view; D. Gonapophysis IX (second valvula), dorsal view; E. Gonapophysis VIII (first valvula), lateral view. Scale bars: A–E = 0.1 mm.

FIGURE 37. Antennae of Bebaiotes species. A. Bebaiotes amazonica sp. nov.; B. Bebaiotes banksi (Metcalf, 1938); C. Bebaiotes bia sp. nov.; D. Bebaiotes dichromata sp. nov.; E. Bebaiotes dorsivittata Fennah, 1947; F. Bebaiotes guianesus (Fennah, 1947). Abbreviations: de, cuticular denticles; fb, flagellar base; m, microtrichia; pe, pedicel; pi, plaque organs. Scale bars: A, B, E, F = 100 μm; C = 200 μm; D = 50μm.

FIGURE 40. Wings of Bebaiotes species. A. Bebaiotes dorsivittata Fennah, 1947, forewing; B. Bebaiotes dorsivittata Fennah, 1947, hind wing; C. Bebaiotes guianesus (Fennah, 1947), forewing; D. Bebaiotes guianesus (Fennah, 1947), hind wing; E. Bebaiotes macroptera sp. nov., forewing; F. Bebaiotes macroptera sp. nov., hind wing; G. Bebaiotes parallela sp. nov., forewing; H. Bebaiotes parallela sp. nov., hind wing. Scale bars: A–H = 1 mm.

FIGURE 43. Geographical distribution of Bebaiotes species. Bebaiotes banksi (Metcalf, 1938); Bebaiotes dorsivittata Fennah, 1947; Bebaiotes guianesus (Fennah, 1947); Bebaiotes parallela sp. nov.