Bebaiotes dichromata Viegas & Ale-Rocha 2024, sp. nov.
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 dichromata

description: Bebaiotes dichromata sp. nov.   
 (Figs 10A – E; 11 A – G; 12 A – E; 37D; 39G, H; 42)   
 Type material. Holotype male (INPA). BRASIL, Amazonas, Manicoré, Cachoeira, 05˚29’44”S–60˚49’2”W, Floresta úmida, ix.2004, Malaise do solo, Silva & Pena legs. Condition of the holotype: Right and left flagellum broken and lost.   
 Paratypes. BRASIL, Amazonas, Manicoré, Cachoeira, 05˚29’44”S–60˚49’2”W, Floresta úmida, ix.2004, Malaise do solo, Silva & Pena legs. (2 ♂, 1 ♀ INPA); Manaus, ZF-2, Torre, 09–22.ix.1994, Arm [adilha] Suspensa, 1, 5 m, J.A. Rafael & J. Vidal cols. (1 ♂, INPA); AM 010, Km 219, 30.i.1979, Norman D. Penny (1 ♀ INPA); N. de Manaus, Km 60, 9–10.iv.1980,2202, N. D. Penny (1 ♂ INPA).   
 Diagnosis. Lower half of frons dark brown (Fig. 10C). Median carina of clypeus weakly marked (Fig. 10C). Protibiae and protarsus dark brown (Fig. 10 A). Forewing dark brown with white regions (Figs 10A, B). Dorsal margin of periandrium with long indentation (Fig. 11G).   
 Description. Measurements. Body length: male 2.4 – 2.5 mm (4.9 – 5.3 mm including wings) (N=3); female 3.0 mm (5.0 mm including wings) (N=1).   
 Coloration. General body color yellow (Figs 10 A–D). Pedicel, lower half of frons dark brown. Pronotum predominantly yellow, except lateral region to the lateral longitudinal carina light brown. Mesonotum predominantly light brown, except lateral longitudinal carinae, median longitudinal carina, irregular spot on anterolateral region yellow. Forewing semihyaline, dark brown with white regions: long, wide, whitish diffuse transverse band in the basal region extending from to CA vein up to the CuA vein; long, wide, whitish diffuse transverse band in the middle region extending from to CA vein up to the CuA 1 vein; half basal of the cubital cell white; long, whitish diffuse band on apical region, extending from the apex of the postcostal cell to the icua cross-vein; white icu cross-vein; long whitish diffuse band covering radial, MP and CuA veins at apex of the wing (Fig. 39G). Hind wing semihyaline, light brown with hyaline regions (Fig. 39H). Legs yellow, except all tibiae and tarsus dark brown. Abdomen yellow, except sternite IV light brown (Fig. 10E).   
 Head: frons wide, distance between the lateral carinae of frons on median portion, subequal to maximum width of vertex (Fig. 10C). Clypeus approximately twice longer than its maximum width; median carina of clypeus weakly marked, does not touch epistomal suture, present on distal 1 / 2 (Fig. 10C). Pedicel globose, approximately 4 times longer than the scapus (Fig. 37 D). Scape short without cuticular denticles (Fig. 37D).   
 Thorax: anterior margin of pronotum slightly tapered, also rounded, 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, strongly marked; posterior margin of pronotum with slight angled indentation in the middle; pronotum without pustules on posterior margin (Fig. 10D); median and lateral longitudinal carinae of mesonotum present but weakly marked (Fig. 10D).   
 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, not aligned; MP vein with four branches with straight apex; first bifurcation of MP vein arising after r-m cross-vein; m-cu cross-vein present; CuP vein approximately 7 times longer than Pcu + A 1 vein; apex of clavus with acute angle (Fig. 39G).   
 Hind wing: first bifurcation of MP vein arising before m-cu cross-vein (Fig. 39H).   
 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; sternites VII + VIII completely sclerotised; posterior margin of sternite VII semi-rounded. Female (Fig. 10B). Similar to male, except the shape of the anal tube.   
 Male terminalia (Figs 11A–G): pygofer with posterior margin without projections (Fig. 11 B). Gonostyli with rounded apex in lateral view and outer margin with short projection and with a pointed apex near apex and sparse setae on inner margin (Figs 11A, D, E). Phallic complex (Figs 11F, G): Periandrium apically narrowed in dorsal view; dorsal margin with long indentation at the apex and ventral margin with short indentation at the apex in dorsal view (Figs 2F, G). Inner sclerotised plates narrowing towards the apex, with serrated outer margin at the apex and smooth surface, without projections (Figs 11F, G). Anal tube (segment X), short, apex truncated in dorsal view, with sparse setae dorsally (Fig. 11C).   
 Female terminalia (Figs 12A–E): Pygofer with numerous setae in posterior view (Fig. 12B). Gonapophysis VIII (first valvula) robust, with sparse setae on median region and covered with small spiniform projections in the basal half in lateral view; three lateroapical projections of subequal sizes with serrated dorsal margin in lateral view (Fig. 12E). Bursa copulatrix densely filamentous apically, obtuse apex, covered by setae laterally on apical half in lateral view (Fig. 12E). Gonapophysis IX (second valvula) robust, forked on apical half, lobes with a pointed apex, strongly curved latero-ventrally, hook-like in dorsal view (Fig. 12D). Gonoplac (third valvula) subtrapezoidal, apex rounded with several apical setae and sparse setae laterally (Fig. 12C). Anal tube (segment X), short, apex truncated, with many sparse setae in dorsal view (Fig. 12B).   
 Variations. Variations have been observed in the coloration of the body in some specimens, from yellowish to yellowish-brown.   
 Etymology. From the Greek di, two, chroma, color. The species name is allusive to the color of antennae (pedicel + scape).   
 Distribution. Brazil (Amazonas) (Fig. 42).   
 Comments. Bebaiotes dichromata sp. nov. can be promptly distinguished from B. tigrina sp. nov. by clypeus without brown band, posterior margin of pronotum with slight angled indentation in the middle, in dorsal view, dorsal margin of periandrium with long indentation at the apex and bursa copulatrix densely filamentous apically.
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 20-24, DOI: 10.11646/zootaxa.5413.1.1, http://zenodo.org/record/10681165