Brasilodontus mucuriensis

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 : 156

Brasilodontus mucuriensis de Mello, 1992

Figs. 1 , 3 , 15 , 16

Diagnosis. labrum medium brown with inferior and lateral portions yellowish (fig.1D); male fore wings extending beyond hind margin of second abdominal segment (fig. 1F), stridulatory vein with ca. 67 teeth; supra-anal with posterior margin nearly straight on mid-portion (fig. 1H); apex of pseudepiphallus dilated as seen from the sides; fringe of bristles on main lobes of pseudepiphallus located dorsally, before the apex (figs. 3A, B, C), rows of denticles on distal portion of main lobe of pseudepiphallus small, dorsally located; pseudepiphallus parameres short; copulatory papilla wider at first fourth, somewhat transparent (fig. 15F).

Redescription. Male. Head: black (fig. 1A); top of head and occiput black; three same-sized ocelli present (fig. 1D); maxillary palpi light to medium brown (fig. 1G); frons, gena and clypeus medium to dark brown, labrum medium brown with inferior and lateral portions yellowish (fig.1D). Thorax: pronotum dark brown (fig. 1C); thoracic sternites as in fig. 1K. Fore wings reaching posterior margin of second abdominal tergite (fig. 1F); dorsal field with three harp veins; stridulatory vein with ca. 67 teeth ( Fig. 16 D); lateral field with two parallel veins below angulation. Legs: medium brown, except the hind tibia, which is dark brown (fig.1L); tibia I with only the internal tympanum (fig. 1J). Abdomen: general color medium to dark brown on dorsum, lighter ventrally; supra-anal plate medium brown with two whitish lines on distal pigmented area, posterior margin nearly straight on mid-portion (fig. 1H); subgenital plate medium brown, darker laterally, posterior margin concave ( Fig. 1 I). Phallic Complex (figs. 3A, B, C): pseudepiphallus moderately up-curved, its main lobe wider at first third, the apex flattened laterally, fringe of bristles located dorsally, clearly anterior to the apex, row of small denticles present posteriorly to the fringe, dorsal; pseudepiphallic parameres short; tip of ectophallic fold located at the level of distal margin of pseudepiphallic parameres, ectophallic apodemes slightly curved. Female: general coloration similar to male (fig. 1B); copulatory papilla wider at first fourth, light yellow, somewhat transparent (fig. 15F).

Material examined. 11 male, 7 female and 2 nymphs. Brazil, Mucuri, Bahia, Assentamento Paulo Freire (18° 3'S 39°41'W), 25.vii.2012, F. A. G de Mello & C. F. Sperber leg. All specimens preserved in 80% alcohol (all newly collected material). Type specimens kept at MZSP.

Figures

FIGURE 1. Brasilodontus mucurie nsis de Mello, 1992. 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 3. Brasilodontus mucuriensis de Mello, 1992 male phallic complex. A— dorsal view, B— ventral view, C— lateral view. Brasilodontus riodocensis de Mello, 1992 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.