Diplosynapsis uncinata, Vieira, Rodrigo & Rafael, José Albertino, 2016

Vieira, Rodrigo & Rafael, José Albertino, 2016, Revision of Diplosynapsis Enderlein, 1914 (Diptera, Asilidae, Asilinae) with description of four new species, Zootaxa 4208 (2), pp. 127-148 : 146

Diplosynapsis uncinata sp. nov.

( Figs. 67–74 )

Diagnosis. Five to six black dorsocentral; no anatergal setae; epandrium apex with a ‘v’-shaped projection in lateral view ( Figs. 68, 70 ); hypandrium with ‘u’-shaped indentation on median-apical margin; gonostylus apex hook-shaped ( Figs. 71, 72 ); gonocoxite apex triangular ( Fig. 71 ).

Description. Male. Holotype. Head. Scape and pedicel black; postpedicel black except for yellow base; 2 black ocellar macrosetae; vertex black, sparsely brown tomentose; frons black; face black, apical half grey tomentose and basal half brown tomentose; mystax with black and yellow setae; palpus with long black and short yellow setae; proboscis black with 3 brown ventral macrosetae and 2 setae, remaining yellow; labial setae yellowish; occiput grey tomentose; black and yellow occipital setae; 4 black postocular macrosetae.

Thorax. Antepronotum and postpronotum black, brown tomentose dorsally and grey laterally; mesonotum black; lateral margin of mesonotum, postpronotal, sutural, prescutellar spot and scutellum brown tomentose; mesopleuron grey tomentose, except for the anterior half of black anepisternum. Chaetotaxy: 2 black notopleural macrosetae; 1–2 black supra-alar setae; 1 black postalar macroseta; 5–6 black dorsocentral setae; no anatergal setae; 6 black apical scutellar macrosetae; black discal scutellar setae; katatergal macrosetae blackish; setae on meron+metanepisternals blackish.

Wing ( Fig. 69 ). Brown, no costal dilation; crossvein r-m beyond middle of discal cell; microtrichia on posterior wing margin arranged in a single plane.

Legs. Black ( Fig. 67 ). Chaetotaxy: Basal half of fore femur with yellow setae and apical half with black setae; mid femur with 3 black anterior setae, 4 black anteroventral setae and 1 black, preapical macroseta dorsally; hind femur with 4 long black setae anteriorly, yellow setae posteriorly, 6 black anteroventrally and 1 black, preapical macroseta dorsoposteriorly; fore tibia with 4 black setae posteriorly; mid tibia with 2 long, black macrosetae anteroventrally; hind tibia with 3 long black setae anteriorly; tarsomeres with black setae.

Abdomen. Tergites 1–5 black, grey tomentose laterally; tergite 1 apical margin grey tomentose, apical margin of tergites 2–4 brown; tergite 5 brown, tergite 6 brown with silver apex and tergite 7 with shiny silvery tomentum ( Figs. 67, 68 ); sternites 1–4 black, grey tomentose and sternites 5–7 brown, grey tomentose.

Terminalia ( Figs. 68, 70–74 ). Epandrium black ( Fig. 68 ), hypandrium, gonocoxite and gonostylus black and red; terminalia oblique to body axis ( Fig. 67 ). Epandrium apex with v-shaped projection, in lateral view ( Figs. 68, 70 ); hypandrium with an u-shaped indentation dorsally on medioapical margin; gonostylus apex hook-shaped ( Figs. 71, 72 ); gonocoxite ventral margin with black setae, apex triangular ( Figs. 68, 71 ); ejaculatory apodeme long and wide proximally, in lateral view ( Fig. 73 ); aedeagus apex directed dorsally ( Figs. 73, 74 ).

Lengths. Body 21.1mm; wing 12.7mm.

Holotype conditions. Wing mounted in microslide with Canada balsam. Part of the abdomen and the terminalia in microtube with glycerine. Microtube and microslide pinned with specimen.

Variations. Length: Body 19.1mm; wing 10.5mm; antepronotum and postpronotum black dorsally; mesopleuron black, sparsely grey tomentose; halter brown; hind femur with brown setae posteriorly and five black anteroventrally.

Female. Unknown.

Etymology. From Latin uncinata = hook, referring to the hook-shaped gonostylus apex.

Distribution. Brazil (Amazonas) ( Fig. 76 ).

Type material examined. Holotype: BRASIL, Amazonas, Rio Jau, Meriti, Mun.[icípio] Novo Airão [2°37'40"S 60°56'31"W] / 04–10.vi.1994, J.A. Rafael / Holotype Diplosynapsis uncinata (♂ INPA) .

Paratype: BR[ASIL]. Am [azonas]. Rio Purus, Costa do Moreno [5°50'8"S 64°18'17"W], 15.i.1987, N.D. Aguiar, col. / Paratype Diplosynapsis uncinata (♂ CZPB) .

Figures

FIGURE 76. Distribution of Diplosynapsis halterata Enderlein, 1914, Diplosynapsis remus Tomasovic, 2002, Diplosynapsis spina sp. nov. and Diplosynapsis uncinata sp. nov.

FIGURES 67 – 74. Diplosynapsis uncinata sp. nov. Holotype ♂. 67. Habitus, lateral view; 68. Terminalia, lateral view; 69. Wing; 70. Terminalia, lateral view treated in hot 10 % KOH; 71. Gonocoxite and gonostylus; 72. Apex of gonostylus; 73. Aedeagus; 74. Apex of aedeagus. Abbreviations: aed: aedeagus; cer: cercus; ej apod: ejaculatory apodeme; epand: epandrium; goncx: gonocoxite; goncx apod: gonocoxal apodeme; gonst: gonostylus.