Opeatocerata tanimboca, 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 : 539-541

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.3502123
persistent identifier	https://treatment.plazi.org/id/03F6943F-E050-FFBA-C7C7-FABAAA6212BA
treatment provided by	Plazi
scientific name	Opeatocerata tanimboca
status	sp. nov.

Treatment

Opeatocerata tanimboca View in CoL sp. nov.

( Figs 185–194 View FIGURES 185 – 194 )

Diagnosis. Tergites 3–6 with paramedian suboval black spots ( Figs 185, 188 View FIGURES 185 – 194 ); epandrium ventral lobe slightly bilobate apex ( Fig. 189 View FIGURES 185 – 194 ); phallus subcylindrical with dorsal subapical spine ( Fig. 193 View FIGURES 185 – 194 ).

Description. Male ( Fig. 185 View FIGURES 185 – 194 ). Head: Face parallel-sided, dark brown with gray pruinescence visible in ventral view, about 4X longer than lower width. Ocellar tubercle protuberant, dark brown with gray pruinescence; ocelli brown. Scape, pedicel and postpedicel brown with black bristles; postpedicel about 1.5X longer than pedicel; stylus about 3X longer than postpedicel. Proboscis dark yellow, shorter than head height. Thorax yellow, shiny ( Fig. 185 View FIGURES 185 – 194 ). Legs yellow, except for all tarsomeres 4–5 black; mid, hind tibia and hind tarsomere 1 with anterodorsal, posterodorsal, anteroventral and posteroventral rows of longer bristles. Wing ( Fig. 186 View FIGURES 185 – 194 ) hyaline, pterostigma, brown, conspicuous, about 2.7X longer than wide. Halter light yellow. Abdomen dark yellow, shiny; tergites 3–6 with paramedian suboval black spots ( Figs 185, 188 View FIGURES 185 – 194 ); tergite 8 divided in two subrectangular plates; sternite 8 divided in two subtriangular plates. Terminalia: Anterior cercus with proclinate dorsal projection in lateral view ( Figs 187 View FIGURES 185 – 194 , 1189), posterior margin truncate and with a median sinus in dorsal view ( Fig. 211 View FIGURE 211 ); descendant plate subtrapezoidal in posterior view ( Fig. 191 View FIGURES 185 – 194 ). Posterior cercus with a rounded apex in lateral view ( Figs 187, 188 View FIGURES 185 – 194 ) and with a dorsal submedian subtriangular projection in dorsal view ( Fig. 191 View FIGURES 185 – 194 ). Hypoproct subrounded in lateral view ( Fig. 189 View FIGURES 185 – 194 ) and comma-shaped in posterior view ( Fig. 191 View FIGURES 185 – 194 ). Epandrium ventral lobe with slightly bilobate apex ( Fig. 189 View FIGURES 185 – 194 ); without spiniform bristles, longer bristles apically on ventral lobe ( Fig. 189 View FIGURES 185 – 194 ). Hypandrium wider than long, with concave apex ( Fig. 194 View FIGURES 185 – 194 ), without long bristles. Phallus subcylindrical, longer than hypandrium, with dorsal subapical spine ( Fig. 193 View FIGURES 185 – 194 ). Subepandrial sclerite wider than long, U-shaped ( Fig. 192 View FIGURES 185 – 194 ). Bacilliform sclerite with folds and longer than subepandrial sclerite ( Fig. 192 View FIGURES 185 – 194 ). Specimen length: 3.2 mm; wing length: 3.3 mm. Female. Unknown.

Geographical distribution. Colombia (Leticia) and Brazil (Amazonas) ( Fig. 211 View FIGURE 211 ).

Type material. HOLOTYPE ♂, labelled: Colombia, AMZ [Amazonas], Letícia. Reserva Tanimboca , Km 11 via Tarapacá. 4º13’S; 69º56’W. 24–29.iv.2011. Arm[adilha] Luz. Antonio Agudelo leg. ( CEUA). Paratype: Brazil, Amazonas. Tabatinga, 13–17.i.1992, Arm[adilha] Malaise, J. Vidal & Lílian (1 ♂, INPA).

Holotype condition. Good; left wing mounted on microslide; abdomen in microtube with glycerin.

Etymology. The specific epithet is a noun in apposition and refers to Reserva Tanimboca , Leticia, Colombia, the locality where the holotype was collected.

Remarks. Opeatocerata tanimboca sp. nov. differs from other species in the tergites with paramedian suboval spots ( Fig. 188 View FIGURES 185 – 194 ) (in other species it is subtriangular or subrectangular), anterior cercus with descendant plate subtrapezoidal ( Fig. 191 View FIGURES 185 – 194 ) (in other species this plate is either subtriangular, subrectangular, with lateroventral expansions or hourglass-shaped) and phallus with dorsal subapical spine ( Fig. 193 View FIGURES 185 – 194 ) (in other species there is no dorsal subapical spine on the phallus).