Diplosynapsis chela sp. nov.

(Figs. 26–36)

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); gonostylus divided into two acute projections apically, 1 short and 1 long, claw-like in lateral view (Figs. 30, 31); 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). 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). 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); sternites 1–4 black, grey tomentose; sternite 5 brown.

Terminalia (Figs. 27, 29–33). Hypandrium, gonocoxite basal 3/4 and epandrium basal 1/5 brown, remaining areas black; terminalia oblique to body axis (Fig 26). Epandrium apical-internal region with a rectangular projection with acute apices (Fig. 29); hypandrium developed laterally, with rounded ventral margin; gonocoxite with a preapical triangular projection dorsally (Fig. 30). Gonocoxite apex rounded (Fig. 30); gonostylus divided apically into two acute projections, 1 short and 1 long, claw-like in lateral view (Figs. 30, 31); ejaculatory apodeme long and wide proximally, in lateral view (Fig. 32); aedeagus apex without ventral projection (Figs. 32, 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): 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); tergite 9 + 10 membranous medially; sternites 1–7 black, grey tomentose; 3 spermathecae capsule small, rounded and sclerotized (Fig. 36).

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

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) .

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).