Diplosynapsis chela, 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 : 135-137

publication ID	https://doi.org/ 10.11646/zootaxa.4208.2.2
publication LSID	lsid:zoobank.org:pub:75A3CA72-A530-4AE4-86E4-1D67232B6A90
DOI	https://doi.org/10.5281/zenodo.6075693
persistent identifier	https://treatment.plazi.org/id/03F2F75B-FFB6-FF9B-FF27-FDD7FAD8FA28
treatment provided by	Plazi
scientific name	Diplosynapsis chela
status	sp. nov.

Treatment

Diplosynapsis chela View in CoL sp. nov.

( Figs. 26–36 View FIGURES 26 – 33 View FIGURES 34 – 36 )

Diagnosis. Notopleuron with two black macrosetae; epandrium with rectangular projection with acute apices on apical internal region; gonocoxite with preapical triangular projection dorsally ( Fig. 30 View FIGURES 26 – 33 ); gonostylus divided into two acute projections apically, 1 short and 1 long, claw-like in lateral view ( Figs. 30, 31 View FIGURES 26 – 33 ); female: mid femur with 3 black setae anteriorly and 4 anteroventrally; hind femur with 4 black setae anteriorly and 5 anteroventrally; hind tibia with 1 black seta anteriorly and 2 anterodorsally.

Description. Male. Holotype. Head. Antenna mostly black, with brown on pedicel apex and postpedicel base; with 5 long, black ocellar setae; vertex black, brown tomentose; frons and face black, sparsely golden tomentose; mystax and palpus with black and yellow setae; proboscis black with black and yellow setae; labial setae yellowish; occiput grey, golden tomentose; occipital setae yellow; with 4 black postocular macrosetae.

Thorax. Antepronotum and postpronotum black, golden tomentose; mesonotum black; lateral margin of mesonotum, postpronotal, sutural and prescutellar spot and scutellum golden tomentose; mesopleuron black, golden tomentose. Chaetotaxy: 2 black notopleural macrosetae; 1 black supra-alar setae; 2 black postalar setae; black dorsocentral setae; no anatergal setae; 6 black, apical scutellar macrosetae; black discal scutellar setae; black katatergal macrosetae; setae on meron+metanepisternal blackish.

Wing ( Fig. 28 View FIGURES 26 – 33 ). Light Brown, without costal dilation; crossvein r-m beyond middle of discal cell; microtrichia on posterior wing margin arranged in a single plane; halter stem yellowish, capitulum yellow-orange.

Legs ( Fig. 26 View FIGURES 26 – 33 ). Black. Chaetotaxy: fore femur with black and yellow setae; mid femur with 3 black setae anteriorly and 3 anteroventrally; hind femur with 3 black setae anteriorly, 7 anteroventrally, 1 anterior preapical dorsal macroseta, and another posteriorly; fore tibia apical 3/4, hind tibia 4/5, all tarsomeres ventrally, and fore and hind tarsomeres with brown, short, spiniform setae anteriorly; fore tibia with 3 black macrosetae posteriorly; mid tibia with 2 black setae anteroventrally; hind tibia with 2 black setae posteroventrally and 4 posteriorly; tarsomeres with black setae.

Abdomen. Tergites 1–4 black, except apex brown, sparsely grey tomentose; tergite 5 brown; tergites and sternites 6–7 brown with dull grey tomentum ( Figs. 26, 27 View FIGURES 26 – 33 ); sternites 1–4 black, grey tomentose; sternite 5 brown.

Terminalia ( Figs. 27, 29–33 View FIGURES 26 – 33 ). Hypandrium, gonocoxite basal 3/4 and epandrium basal 1/5 brown, remaining areas black; terminalia oblique to body axis ( Fig 26 View FIGURES 26 – 33 ). Epandrium apical-internal region with a rectangular projection with acute apices ( Fig. 29 View FIGURES 26 – 33 ); hypandrium developed laterally, with rounded ventral margin; gonocoxite with a preapical triangular projection dorsally ( Fig. 30 View FIGURES 26 – 33 ). Gonocoxite apex rounded ( Fig. 30 View FIGURES 26 – 33 ); gonostylus divided apically into two acute projections, 1 short and 1 long, claw-like in lateral view ( Figs. 30, 31 View FIGURES 26 – 33 ); ejaculatory apodeme long and wide proximally, in lateral view ( Fig. 32 View FIGURES 26 – 33 ); aedeagus apex without ventral projection ( Figs. 32, 33 View FIGURES 26 – 33 ).

Lengths. Body 20.2 mm; wing 11.9 mm.

Holotype condition. Wing mounted in microslide with Canada balsam and terminalia in microtube with glycerin. Microtube and microslides pinned with specimen.

Variation. Length: Body 20.4 mm; wing: 14 mm; antenna, frons and face wholly black; 4 long, black ocellar macrosetae; 9 black apical scutellar macrosetae; halter stem yellow and capitulum yellow-orange; tergites I–V brown; tergites 6–7 brown; sternites 1–8 brown.

Female. ( Figs. 34–36 View FIGURES 34 – 36 ): Similar to male, except for body length: 22.7 mm, wing 17.5 mm; 4 long black ocellar macrosetae; fore femur with 8 black macrosetae anteroventrally; mid femur with 3 black setae anteriorly and 4 anteroventrally; hind femur with 4 black setae anteriorly, 5 anteroventrally; tergites 1–7 black with grey apical margin; tergites 1–7 lateral margin, grey tomentose; tergite 8 long, slender and black ( Figs. 34, 35 View FIGURES 34 – 36 ); tergite 9 + 10 membranous medially; sternites 1–7 black, grey tomentose; 3 spermathecae capsule small, rounded and sclerotized ( Fig. 36 View FIGURES 34 – 36 ).

Etymology From Latin chela = claw, referring to the claw-like apex of the gonostylus ( Figs. 30, 31 View FIGURES 26 – 33 ).

Distribution. Brazil (Amazonas) ( Fig. 75).

Type material examined. Holotype: BRASIL, Amazonas, CEPLAC [3°8'25"S 58°25'47"W] 12.xii. [19]76, Col.: B.C. Ratcliffe / Holotype Diplosynapsis chela (♂ INPA) GoogleMaps .

Paratypes: Manaus , Amazonas, BRAZIL, 1.ii. [19]78, B.C. Ratcliffe / Paratype Diplosynapsis chela (♂ INPA) ; same label data, except: 7.xii. [19]77, B.C. Ratcliffe / Paratype Diplosynapsis chela (♀ INPA).