Opeatocerata bare, Câmara, J. T. & Rafael, J. A., 2014

Câmara, J. T. & Rafael, J. A., 2014, Revision of Opeatocerata Melander, 1928 (Diptera: Empididae: Empidinae), Zootaxa 3846 (4), pp. 502-546 : 510

publication ID	https://doi.org/ 10.11646/zootaxa.3846.4.2
publication LSID	lsid:zoobank.org:pub:71A80CC3-CDC1-4291-863B-FA7501D60AF5
DOI	https://doi.org/10.5281/zenodo.5285199
persistent identifier	https://treatment.plazi.org/id/03F6943F-E07D-FF94-C7C7-FD16AAE8116A
treatment provided by	Plazi
scientific name	Opeatocerata bare
status	sp. nov.

Treatment

Opeatocerata bare View in CoL sp. nov.

( Figs 26–32 View FIGURES 26 – 32 )

Diagnosis. Yellow species; descendant plate of the anterior cercus with lateroventral projection in posterior view ( Fig. 30 View FIGURES 26 – 32 ); phallus with narrow base, wider towards the apex with large dorsal subapical appendix ( Fig. 32 View FIGURES 26 – 32 ).

Description. Male ( Fig. 26 View FIGURES 26 – 32 ). Head: Face slightly divergent toward the proboscis, dark brown, with gray pruinescence visible in ventral view, about 3X longer than lower width. Ocellar tubercle protrubeant, dark brown with brown pruinescence; ocelli brown. Antenna brown to black bristles; postpedicel about 2X longer than pedicel; stylus about 2X longer than postpedicel. Proboscis yellow shorter than head height. Thorax yellow, shiny ( Fig. 26 View FIGURES 26 – 32 ). Legs yellow, except by hind femur and tibia with apical black ring and all tarsomeres 4–5 black; hind tibia with anterodorsal and posterodorsal and anteroventral rows of longer bristles; hind tarsus with anterodorsal and posterodorsal rows of longer bristles. Wing ( Fig. 27 View FIGURES 26 – 32 ) hyaline; pterostigma brown, conspicuous, about 2.8X longer than wide. Halter yellow. Abdomen yellow, shiny ( Fig. 26 View FIGURES 26 – 32 ); tergite 8 divided in two subrectangular plates; sternite 8 divided in two trapezoidal plates. Terminalia: Anterior cercus with reclinate dorsal projection in lateral view ( Fig. 28 View FIGURES 26 – 32 ), subrectangular in dorsal view ( Fig. 29 View FIGURES 26 – 32 ); descendant plate with lateroventral projection in posterior view ( Fig. 30 View FIGURES 26 – 32 ). Posterior cercus with rounded apex in lateral view ( Fig. 28 View FIGURES 26 – 32 ) and pointed dorsal subbasal projection ( Fig. 29 View FIGURES 26 – 32 ). Hypoproct subtriangular in lateral view ( Fig. 28 View FIGURES 26 – 32 ) and comma-shaped in posterior view. Epandrial ventral lobe with apex slightly bilobed ( Fig. 28 View FIGURES 26 – 32 ); spiniform bristles mesially on dorsal lobe and longer bristles apically on ventral lobe ( Fig. 28 View FIGURES 26 – 32 ). Hypandrium longer than wide, with rounded apex, without long bristles. Phallus with narrow base, wider at mostly, longer than hypandrium, with large dorsal subapical appendix ( Fig. 32 View FIGURES 26 – 32 ). Subepandrial sclerite wider than long, U-shaped ( Fig. 31 View FIGURES 26 – 32 ). Bacilliform sclerite folded and longer than subepandrial sclerite ( Fig. 31 View FIGURES 26 – 32 ). Specimen length: 3.0 mm; wing length: 3.6 mm. Female. Unknown.

Geographical distribution. Brazil (Amazonas) ( Fig. 211 View FIGURE 211 ).

Type material. HOLOTYPE ♂, labelled: Brasil, Amazonas, Manaus, Rod[ovia] AM 0 10 Km 50. ZF-2, Km 14, Torre, 02º35’21’’S; 60º06’55’’W / 4.iii.2011. 03–06:00h. Arm[adilha] luz dossel, 40 m de altura. F.F Xavier Filho, J.T.Câmara, P.Dias ( INPA). Paratypes: Brazil, Amazonas. idem, Km 27, entrada LBA 02º35’S; 60º06’W; 5.iii.2011. 18–21:00h. Arm[adilha] luz dossel 35 m. F.F. Xavier Filho, R.F.Freitas (1 ♂, INPA). Manaus, PDBFF / WWF. Proj[eto] Bert Klein / x.1985, Malaise / Reserva 1210 (1 ♂, INPA).

Holotype condition. Tarsomeres 2–5 of left hindleg lost; wing on microslide; abdomen in microtube with glycerin.

Etymology. The specific epithet is a noun in apposition and refers to the indigenous tribe called “ Baré ”, that lives in the northwest portion of the state of Amazonas.

Remarks. Opeatocerata bare sp. nov. is similar to O. zuleideae sp. nov. by the following shared characters: phallus with large dorsal subapical appendix ( Figs 32 View FIGURES 26 – 32 , 209 View FIGURES 203 – 210 ), anterior cercus with reclinate dorsal projection in lateral view ( Figs 28 View FIGURES 26 – 32 , 205 View FIGURES 203 – 210 ) and posterior cercus with pointed dorsal subbasal projection in dorsal view ( Figs 29 View FIGURES 26 – 32 , 206 View FIGURES 203 – 210 ). Differs from the latter by the tergites without spots ( Fig. 26 View FIGURES 26 – 32 ) and posterior cercus with rounded apex and without median subtriangular projection in lateral view ( Fig. 28 View FIGURES 26 – 32 ). Opeatocerata zuleideae sp. nov. has tergites with paramedian subrectangular black spots ( Fig. 203 View FIGURES 203 – 210 ) and posterior cercus with rounded apex and with median subtriangular projection in lateral view ( Fig. 105 View FIGURES 100 – 108 ).