Stibasoma manauensis Turcatel, Rafael & Carvalho

Turcatel, Mauren, Carvalho, Claudio José Barros De & Rafael, José Albertino, 2010, A taxonomic revision of Stibasoma Schiner, 1867 (Diptera: Tabanidae), Zootaxa 2368, pp. 1-39 : 30-31

Stibasoma manauensis Turcatel, Rafael & Carvalho , new species

( Figs. 65–68 )

Diagnosis. predominantly black; abdomen with a yellow transversal band, with two round black spots laterally.

Description. Female. Body length: 14.14mm. Wing length: 12.14mm.

Head. Frons dark brown to black, with dense silver pollinosity beside the mid-callus; black hairs, except for white hairs beside the mid-callus. Frontal index: 5.17. Divergence index: 1.28. Frontal callus narrower than frons; frontal callus and mid-callus dark brown to black. Subcallus dark brown to black, with dense whitish-silver pollinosity, best seen in dorsal view. Antenna dark brown to black; scape and pedicel with mixed black and white hairs and sparse golden pollinosity; basal flagellomere with ventral angle and dorsal spine reaching the second flagellomere. Face and parafacia dark brown to black, with dense whitish-silver pollinosity, best seen in dorsal view. Gena and postgena dark brown to black, with dense white pollinosity and dense white hairs. Palpus dark brown, with white pollinosity and white hairs.

Thorax. Scutum and scutellum dark brown to black with black hairs and gray pollinosity best seen in anterior view. Postpronotal lobe dark brown to black, with dense whitish-silver pollinosity and white hairs. Notopleuron dark brown to black, with whitish-silver pollinosity and black hairs, except for few white hairs proximally. Proepisternum dark brown to black, with white pollinosity and white hairs. Proepimeron dark brown to black, with white pollinosity and white hairs mixed with few black hairs. Anepisternum dark brown to black, with gray pollinosity; long, black hairs distally and few white hairs on base of wing. Katepisternum dark brown to black, with gray pollinosity, with black hairs distally except for few white hairs ventrally. Anepimeron dark brown to black with gray pollinosity and black hairs. Katepimeron dark brown to black, with dense silver pollinosity; few short black hairs posterodorsally. Katatergite dark brown to black, with silver pollinosity and dense white hairs. Wing with cells bc, c, sc, ma, br, bm light brown; cells r1 and r2+3 with light brown spot in the middle; the other parts of the wing sub-hyaline. Pterostigma yellow. Venation brown. Halter yellow, with whitish apex. Coxae 1 and 2 dark brown to black, with gray pollinosity and white hairs proximally and black hairs distally; coxa 3 dark brown to black with gray pollinosity and black hairs. Femur dark brown to black, with black hairs. Tibiae 1 and 2 dark brown to black, with black hairs, except for white hairs proximally on the anterior, anterodorsal, dorsal, posterior dorsal and posterior sides; tibia 3 dark brown to black with black hairs, except for white hairs proximally on the anterodorsal side. Tarsus dark brown to black with black hairs, except for reddish hairs on the ventral side.

Abdomen. Tergite 1 entirely dark brown to black with black hairs. Tergite 2 dark brown to black with black hairs, except for white hairs in middle and in the laterals of the distal margin. Tergite 3 dark brown to black with yellow hairs, except for black hairs forming two round marks laterally. Tergite 4 dark brown to black with black hairs. Tergite 5 dark brown to black with black hairs, except for few yellow hairs in middle and in the laterals or the distal margin. The other tergites dark brown to black with yellow hairs. Sternite 1 dark brown to black with sparse gray pollinosity and black hairs. The other sternites dark brown to black with black hairs proximally and distal margin yellow with yellow hairs.

Male: unknown.

Type-locality. Brazil: Amazonas: Manaus.

Distribution. Brazil (Amazonas).

Etymology. the specific epithet is the Latin form of “manauense”, which means “from Manaus”.

Examined material: Holotype: “ BRA [sil] – AM[azonas] – Manaus\ Reserva Ducke\ Ig[arapé]. Acará\ Campinarana\ Brom[élia]. Epífita #1.01” “Pupa: 22.ix.2003 \ Adulto: 13.x.2003 \ Torreias, S.R.S &\ Fernandes, J.C.B. cols” “ Holotype ” (female, INPA); Paratype: “BR[asil] – AM[azonas] – Manaus\ Reserva Ducke\ Ig[arapé]. Acará\ Campinarana\ Brom[élia]. Terrestre #5.3” “Pupa: 01.iii.2004 \ Adulto: 26.iii.2004 \ Torreias, S.R.S. &\ Fernandes, J.C.B. cols.” “ Paratype ” (Female, INPA).

Figures

FIGURES 65 – 68. Stibasoma manauensis holotype Ƥ: (65) dorsal view; (66) frontal view; (67) lateral view; figure 68, S. manauensis paratype Ƥ: lateral view of the head.