Psychoda bahiensis, Cordeiro, Danilo, Bravo, Freddy & De, Claudio J. B., 2011

Cordeiro, Danilo, Bravo, Freddy & De, Claudio J. B., 2011, Taxonomy of Brazilian Psychoda Latreille, 1796 (Diptera, Psychodidae) with the description of thirteen new species, Zootaxa 3101, pp. 1-37 : 20-21

Psychoda bahiensis , sp. nov.

( Figs 54–62 )

Etymology. The species name, bahiensis , is based on type locality.

Diagnosis. Palpal formula 1:1.3:1.1:1.4; radial and medial forks incomplete; subgenital plate wider than long, subquadrangular, pilose on distal half, with a narrow and acute concavity between lobes; genital chamber subtriangular, with posterior apodeme.

Female. Head ( Fig. 54 ): vertex, frons and clypeus pilose; hair patch of frons extending to facet row 1; eye bridge with 4 facets; eyes separated by 1.6 facet diameters; 6 supra-ocular setae; interocular suture absent; clypeus with 2 stronger lateral alveoli; frontoclypeal suture absent; antenna incomplete, flagellomeres distal to 12th lost on preparation, 11th and 12th flagellomeres separated, both with short neck and spines; scape cylindrical, 1.5 the length of the subspherical pedicel ( Fig. 55 ); ascoids in Y ( Fig. 56 ); palpal formula 1:1.3(1.25–1.33):1.1(1.0– 1.25):1.4(1.3–1.39) ( Fig. 57 ); labellum with 3 long apical teeth, 1 short subapical tooth and 2 lateral setae ( Fig. 58 ). Wing ( Fig. 59 ): Sc vein not extending beyond base of vein Rs; radial and medial forks incomplete, base of vein R5 and costal cell slightly darkened. Distitarsus without apical projection ( Fig. 60 ). Terminalia: subgenital plate wider than long, subquadrangular, bilobed, pilose on distal half except the internal margin of the narrow and acute concavity between lobes ( Fig. 61 ); genital digit large, triangular; subgenital plate internally with a semi-circular structure and some lines lateral to the genital digit ( Fig. 62 ); genital chamber subtriangular, with anterior portion rounded, and a posterior apodeme ending in T ( Fig. 61 ).

Male. Unknown.

Material examined. Holotype Ƥ BRAZIL, Bahia, Cachoeira, 20.vii.2004, col. F. Bravo (MZUEFS). Paratype: 1 Ƥ same locality, date and collector of holotype (MZUEFS).

Distribution. Brazil (Bahia).

Comments. This species is similar to P. complexa sp. nov. and P. obeliske Quate ( Costa Rica) mainly by the incomplete forks of wing, and large rod-like structure on inner face of subgenital plate, but they can be differenciated by the internal ornamentation, apical concavity of the subgenital plate and by the genital chamber, that presents a conspicuous posterior apodeme in P. bahiensis sp. nov. and P. obeliske , absent in P. complexa sp. nov. As the apical flagellomeres are missing, this species cannot be assigned to any subgenera. Complete specimens, as well as male association, may provide a better discussion about the classification of this species, and the other species with apical flagellomeres unknown.

Figures

FIGURES 54 – 62. Psychoda bahiensis sp. nov.: 54. Head. 55. Antenna: scape, pedicel and basal flagellomeres. 56. Flagellomere and ascoid. 57. Palpus. 58. Labellum. 59. Wing. 60. Distitarsus. 61. Subgenital plate and genital chamber. 62. Subgenital plate, internal ornamentation. [Scale 0.5 mm (59), other pictures 0.06 mm].