Opeatocerata smithi, 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 : 533-535

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.5285283
persistent identifier	https://treatment.plazi.org/id/03F6943F-E06A-FFBC-C7C7-FABFA8F0134F
treatment provided by	Plazi
scientific name	Opeatocerata smithi
status	sp. nov.

Treatment

Opeatocerata smithi View in CoL sp. nov.

( Figs 152–160 View FIGURES 152 – 160 )

Diagnosis. Anterior cercus with a proclinate dorsal projection in lateral view ( Figs 154, 155 View FIGURES 152 – 160 ), anterior margin rounded in dorsal view ( Fig. 156 View FIGURES 152 – 160 ); epandrium lobe truncate at apex ( Fig. 155 View FIGURES 152 – 160 ); phallus subcylindrical, wider medially, with dorsal subapical narrow appendix ( Fig. 159 View FIGURES 152 – 160 ).

Description. Male ( Fig. 152 View FIGURES 152 – 160 ). Head: Face slightly divergent toward the proboscis, dark brown, with gray pruinescence visible in ventral view, about 4X longer than lower width. Ocellar tubercle protuberant, brown with gray pruinescence; ocelli light brown. Antenna light brown with black bristles; postpedicel about 1.5X longer than pedicel; stylus about 2.5X longer than postpedicel. Proboscis yellow shorter than head height. Thorax yellow, shiny ( Fig. 152 View FIGURES 152 – 160 ). Legs yellow, except for hind femur and tibia with brown apical ring and all tarsomeres 4–5 black; hind tibia with anterodorsal, posterodorsal and posteroventral rows of longer bristles; hind tarsus with anterodorsal and posterodorsal rows of longer bristles. Wing ( Fig. 153 View FIGURES 152 – 160 ) hyaline, pterostigma, brown, conspicuous, about 2.4X longer than wide. Halter light yellow. Abdomen yellow, shiny ( Fig. 152 View FIGURES 152 – 160 ); tergite 8 divided in two subtriangular plates; sternite 8 divided in two trapezoidal plates. Terminalia: Anterior cercus with a proclinate dorsal projection in lateral view ( Figs 154, 155 View FIGURES 152 – 160 ), anterior margin rounded in dorsal view ( Fig. 156 View FIGURES 152 – 160 ); descendant plate subrectangular with lower margin slightly bilobate in posterior view ( Fig. 157 View FIGURES 152 – 160 ). Posterior cercus with acuminate apex in lateral view ( Figs 154, 155 View FIGURES 152 – 160 ); without dorsal projections ( Fig. 156 View FIGURES 152 – 160 ). Hypoproct subtriangular in lateral lateral view ( Fig. 155 View FIGURES 152 – 160 ) and comma-shaped in posterior view ( Fig. 157 View FIGURES 152 – 160 ). Epandrial ventral lobe truncate at apex, spiniform bristles mesially and longer bristles apically ( Fig. 155 View FIGURES 152 – 160 ). Hypandrium longer than wide, with rounded apex and median sinus ( Fig. 160 View FIGURES 152 – 160 ), without long bristles. Phallus subcylindrical, wider medially, longer than hypandrium, with dorsal subapical narrow appendix ( Fig. 159 View FIGURES 152 – 160 ). Subepandrial sclerite wider than long, U-shaped ( Fig. 158 View FIGURES 152 – 160 ). Bacilliform sclerite folded and longer than subepandrial sclerite ( Fig. 158 View FIGURES 152 – 160 ). Specimen length: 2.9 m; wing length: 3.5 mm. Female. Unknown.

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

Type material. HOLOTYPE ♂, labelled: Brasil, AM[azonas], Maués, Rio Abacaxis, Campina Pacamiri, 04º35’49’’S / 58º13’14’’W, 30–31.v.2008. Malaise na mata. J. A. Rafael e equipe ( INPA).

Holotype condition. Postallar, scutellars and acrostichals bristles lost; left wing mounted on microslide; abdomen in microtube with glycerin.

Etymology. The specific name is in tribute to K.G.V. Smith due to his contribution to the knowledge on the Neotropical fauna of Empididae , particularly the Brazilian fauna.

Remarks. Opeatocerata smithi sp. nov. has an anterior cercus with proclinate dorsal projection ( Fig. 155 View FIGURES 152 – 160 ), descendant plate subrectangular in posterior view ( Fig. 157 View FIGURES 152 – 160 ), subepandrial sclerite U-shaped ( Fig. 158 View FIGURES 152 – 160 ) and phallus with dorsal subapical narrow appendix ( Fig. 159 View FIGURES 152 – 160 ), all characters similar to O. spinipenis sp. nov.. Differs from the latter by the hypoproct subtriangular in lateral view ( Fig. 155 View FIGURES 152 – 160 ), epandrial lobe with truncate apex ( Fig. 155 View FIGURES 152 – 160 ) and phallus without lateral spines ( Fig. 160 View FIGURES 152 – 160 ). Opeatocerata spinipenis sp. nov. has hypoproct bacilliform in lateral lateral view ( Fig. 163 View FIGURES 161 – 169 ), epandrial lobe with rounded apex ( Fig. 163 View FIGURES 161 – 169 ) and phallus with lateral subapical spines ( Fig. 168 View FIGURES 161 – 169 ).