Brasilodontus itabunensis

Campos, Lucas Denadai De & De Mello, Francisco De A. G., 2014, Taxonomic studies on the Neotropical Landrevinae with description of new taxa (Orthoptera, Grylloidea, Gryllidae), Zootaxa 3852 (2), pp. 151-178 : 160

Brasilodontus itabunensis de Mello & Campos, n. sp.

Figs. 4 , 6 , 15 , 16

Type specimens. Holotype male, 2 male, 2 female paratypes [ MZSP]; 3 male, 1 female paratypes kept at Departamento de Zoologia, Instituto de Biociências, UNESP—São Paulo State University, Botucatu campus.

Etymology. Toponymic, referring to the city of Itabuna, Bahia, Brazil.

Diagnosis. the median ocellus smaller (fig. 4D); male fore wings reaching hind margin of second abdominal segment (fig. 4A, F), stridulatory vein with ca. 100 teeth; subgenital plate dark yellow to light brown, posterior margin distinctly round (fig. 4I); apex of pseudepiphallus clavate ( Fig. 6 A, B, C); fringe of bristles on main lobes of pseudepiphallus located distally (figs. 6A, B, C), rows of denticles on distal portion of main lobe of pseudepiphallus small, dorsally located; pseudepiphallus parameres short; copulatory papilla elongate, the lateral lines as seen from dorsum somewhat concave, the apex white (fig. 15A1), the proximal margin ventrally blunt (fig 15A2).

Description. Male. Head: dark brown (fig. 4A); top of the head and occiput dark brown; three ocelli present, the median smaller (fig. 4D); maxillary palpi light brown (fig. 4G); frons, gena and clypeus medium brown on a yellowish background, labrum whitish (fig. 4D). Thorax: pronotum medium brown (fig. 4A); thoracic sternites as in fig. 4K. Fore wings reaching posterior margin of second abdominal tergite (fig. 4A, F); dorsal field with three harp veins; stridulatory vein with ca. 100 teeth (fig. 16A); lateral field with two parallel veins. Legs: light brown except for the dark brown hind femur; tibia I with only the internal tympanum present (fig. 4J). Abdomen: general color light brown on dorsum, lighter ventrally; supra-anal plate yellowish, without whitish lines on distal pigmented area, posterior margin rounded (fig. 4H); subgenital plate dark yellow to light brown, posterior margin distinctly round (fig. 4I). Phallic Complex (figs. 6A, B, C): pseudepiphallus slightly up-curved (fig. 6C), its main lobe wider at the second third (fig. 6A, B), the apex clavate, fringe of bristles apical, dorsally located, row of small denticles present anteriorly to the fringe; pseudepiphallic parameres short, rounded, apart from one another; tip of ectophallic fold located at the level of the distal margin of pseudepiphallic parameres; ectophallic apodeme very long, curved. Female: general coloration darker as the male (fig. 4B); copulatory papilla yellowish, elongate, the lateral lines as seen from dorsum somewhat concave, the apex white (fig. 15A1), the proximal margin ventrally blunt (fig 15A2).

Material examined. 6 male and 3 female. Brazil, Bahia, Itabuna, Mata do CEPLAC (14°47'S; 39°13'W), i.2001, F. A. G de Mello & S. S. Nihei leg. All specimens preserved in 80% alcohol.

Figures

FIGURE 4. Brasilodontus itabunensis n. sp. A — male, dorsal; B — female, dorsal; C — male, lateral head and pronotum; D — male, frontal view of head; E — male eye, perpendicular view; F — male, dorsal field of fore wings; G — male maxillary palpi; H — male supra-anal plate; I — male subgenital plate; J — male, inner face of fore tibia showing tympanum; K — male, thoracic sternites; L — hind leg; M, N, O — ovipositor dorsal, ventral and lateral, respectively.

FIGURE 6. Brasilodontus itabunensis n. sp. male phallic complex. A— dorsal view, B— ventral view, C— lateral view. Brasilodontus itamarajuensis n. sp. male phallic complex. D— dorsal view, E— ventral view, F— lateral view. Conventions: M. L. Ps. — main lobe of pseudepiphallus; Ps. P. — pseudepiphallic paramere Ect. F. — ectophallic fold; End. Sc. — endophallic sclerite; Ect. Ap. — ectophallic apodeme; R. — rami.

FIGURE 15. Female copulatory papilla dorsal (1) ventral (2) and lateral (3) views. A — Brasilodontus itabunensis sp. n.; B — B. itamarajuensis sp. n.; C — B. riodocensis; D — B. portosegurensis sp. n.; E — B. apterus sp. n.; F — B. mucuriensis; G — Yarrubura nigricephala sp. n.; H — Xulavuna adenoptera sp. n.

FIGURE 16. Males fore wings. A — Brasilodontus itabunensis sp. n.; B — B. itamarajuensis sp. n.; C — B. portosegurensis sp. n.; D — B. mucuriensis; E— Yarrubura nigricephala sp. n.; F — B. riodocensis; G — Xulavuna adenoptera sp. n.