Bebaiotes banksi
Creators: name: Viegas, Eduarda Fernanda Gomes
name: Ale-Rocha, Rosaly
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Achilixiidae
Bebaiotes
Bebaiotes banksi

description: Bebaiotes banksi (Metcalf, 1938)   
 (Figs 4A – E; 5A – G; 6A – E; 37B; 39C, D; 43)   
 Muirilixius banksi Metcalf, 1938: 333–334, plates II, VI, XVI, XIX; Metcalf 1945: 217 (cat.); Fennah 1947: 186 (key). Bebaiotes banksi: Wilson, 1989: 491, Figs 7, 8 (taxonomy)   
 Condition of the material examined: Wings with broken apex; legs broken and lost.   
 Additional material examined: BRASIL, Amazonas, Manaus, Reserva Ducke, Rod [ovia] 010, Km 26, 14.ii a 6.iii.2007, Malaise, Dossel, Platô, L / O, G. Freitas & M. Feitosa cols. (1 ♂, INPA); Pará, Conceição do Araguaia, 16– 17.xi.1983, CDC, J. R. Arias eq[uipe] cols (7 ♂, 3 ♀, INPA); idem 19–31.i.1983, CDC: 1m (1 ♂, INPA). PANAMÁ, Canal Zone: Barro Colorado, 13.vii.1924, N. Banks (examined by photography) (1 ♀, NHM).   
 Diagnosis. Body coloration dark yellow (Fig. 4A, B). Frons narrow (Fig. 4C). Posterior margin of pronotum almost straight (Fig. 4D). Dorsal margin of periandrium with shallow indentation (Fig. 5G). Gonapophysis VIII (first valvula) with four projections on lateroapical margin and dorsal margin smooth (Fig. 6E).   
 Redescription (male and female). Measurements. Body length: male 2.5 – 2.7 (6.0 – 6.1 mm including wings) (N=5); female 2.8–3.4 (6.3 – 6.4 mm including wings) (N=3).   
 Coloration. General body color dark yellow (Figs 4A, B). Upper half of frons, plaque organs of pedicel, median region of pronotum, lateral and posterior margin of pronotum and tegula pale yellow. Forewing semihyaline, yellow with white and darkened regions: narrow white band covering r-m, r- m2, m-cu 1, icua cross-veins; narrow white stripes covering base of CuA vein, CuP vein and Pcu+A 1 vein; short, wide, transverse brown band extending from to apex the RA vein up to the MP 2 vein at apex of wing; short, wide, transverse brown band extending from MP 4 vein to apex of cubital cell at apex of wing (Fig. 39C). Hind wing semihyaline, yellow (Fig. 39D). Upper half of sternite III pale yellow (Fig. 4E).   
 Head: frons narrow, distance between the lateral carinae of frons, on median portion, approximately twice smaller than maximum width of vertex (Fig. 4C). Clypeus approximately 3 times longer than its maximum width; median carina of clypeus strongly marked, does not touch epistomal suture, present on distal ¾ (Fig. 4C). Pedicel oblong, approximately twice longer than scape (Fig. 37B). Scape long without cuticular denticles (Fig. 37B).   
 Thorax: anterior margin of pronotum tapered, lateral longitudinal carinae of pronotum converging at an angle on anterior margin and gently diverging 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 (Fig. 4D); median and lateral longitudinal carinae of mesonotum present but weakly marked (Fig. 4D).   
 Forewing: RA and RP veins with the apex gently curved anteriorly; r-m cross-vein present; ir cross-vein close to of the r-m 1 cross-vein, aligned; MP with four branches with apex gently curved posteriorly; first bifurcation of MP vein arising before r-m cross-vein; m-cu cross-vein present; CuP vein approximately 3 times longer than Pcu + A 1 vein; apex of clavus with straight angle (Fig. 39C).   
 Hind wing: first bifurcation of MP vein arising before m-cu cross-vein (Fig. 39D).   
 Legs: metatibia with 9 apical spines; metatarsus with 7+6 apical spines.   
 Abdomen: posterior half of sternites IV + V and VI with four long, thin, whitish setae; posterior margin of sternites VII + VIII v-shaped in posterior view. Female (Fig. 4B). Similar to male, except for long, wide, brown, transverse band y-shaped at apex of forewing; apex of Anal tube (segment X), slightly concave (Fig. 6A).   
 Male terminalia (Figs 5A–G). Pygofer with posterior margin without projections and numerous sparse setae (Fig. 5B). Gonostyli with truncated apex in lateral view; outer margin with short projection and with a rounded apex near apex and inner margins with sparse setae (Fig. 5A, D, E). Phallic complex (Fig. 5F, G): Periandrium rounded in dorsal view, dorsal margin with smoothly indentation at the apex and ventral margin rounded apically (Fig. 5F, G). Inner sclerotised plates slender, lacking spiniform projections (Fig. 5 G). Anal tube (segment X), short, apex rounded in dorsal view, with sparse setae dorsally (Fig. 5 C).   
 Female terminalia (Figs 6A–E): Pygofer bilobed with sparse setae in posterior view (Fig. 6B). Gonapophysis VIII (first valvula) robust, with sparse setae on median region and covered with small spiniform projections in lateral view; four lateroapical projection of unequal sizes with smooth dorsal margin in lateral view (Fig. 6E). Bursa copulatrix sparsely filamentous apically, acute apex, with some sparse setae near apex in lateral view (Fig. 6E). Gonapophysis IX (second valvula) robust, wider at the base, forked on apical half, lobes with pointed apex, strongly curved latero-ventrally in dorsal view (Fig. 6D). Gonoplac (third valvula) subtrapezoidal, apex rounded with numerous marginal setae (setae lost, only insertions visible), and few sparse setae laterally near apex in lateral view (Fig. 6C). Anal tube (segment X), short, apex smoothly reentrant, with sparse setae in dorsal view (Fig. 6A).   
 Variations. Variations in the size and shape of the dark transverse bands on apical half of forewing have been observed in some specimens, as well as the absence of these bands and the median longitudinal carina of pronotum.   
 Comments. B. banksi (Metcalf, 1938) can be promptly distinguished from B. guianesus (Fennah, 1947) by the body color dark yellow, posterior margin of pronotum almost straight, forewing yellow with white and dark regions, dorsal margin of periandrium with smoothly indentation at the apex and ventral margin rounded.
description: Published as part of 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, pp. 1-65 in Zootaxa 5413 (1) on pages 12-16, DOI: 10.11646/zootaxa.5413.1.1, http://zenodo.org/record/10681165