Dicladocera mutata Fairchild, 1958

Oliveira, Lia Pereira, Henriques, Augusto Loureiro & Krolow, Tiago Kütter, 2023, New records, descriptions, and redescriptions of male horse flies (Diptera: Tabanidae) in Brazil, EntomoBrasilis (e 1033) 16, pp. 1-7 : 2-3

Dicladocera mutata Fairchild, 1958

( Figure 3 )

Description (♂)

Head ( Figures 3 A-C): Eyes contiguous, glabrous, larger ommatidia on upper 2/3 and smaller ommatidia on lower 1/3. Ocellar triangle brown, not very evident, with three white ocelli. Subcallus with orange integument, grayish pruinosity and some black setulae. Gena and parafacial with black integument, grayish pruinosity, with numerous black setulae. Clypeus with orange integument, grayish pruinosity, with a few black and yellow setulae. Palpus porrect, orange, with numerous and elongated black setulae. Antenna orangish. Scape and pedicel with black setulae. Postpedicel orange brown, with short dorsal tooth, style slightly darker. Proboscis dark brown with grayish pruinosity and black and yellow setulae.

Thorax ( Figures 3 A-B): Dark brown with two faint median longitudinal bands of grayish pruinosity and yellow setulae. Pleuron densely black setulose. Scutellum with anterior half dark brown and posterior half orange and with elongated black setulae. Legs concolorous to the thorax with many black setulae. Wing spotted with hyaline apex and costal cell, hyaline circular areas in medial basal cell, radial basal cell, discal, anterior cubital and anal lobe.

Abdomen ( Figures 3 A-B): Abdomen orangish with numerous black setulae. Tergite 4 with a small tuft of white setulae posteriorly. Tergites 5 to 7 brownish. Sternites 2 and 3 with grayish pruinosity strip and whitish setulae.

Terminalia ( Figures 3 D-G): Epandrium slightly wider than cercus and with sparse black setulae. Cercus long and wide, with long black setulae on dorsal side and shorter on ventral side, apex slightly pointed. Hypandrium + gonocoxite robust, slightly longer than wide. Aedeagus and gonocoxal apodemes equally long.

Material examined: BRAZIL • 1 male; Tocantins, Palmas, TaquaruÇu, Faz.[enda] Encantada , Cach [oeira] Raizama ; 10°14′45.21′′S, 48°7′24.07′′W; 26-31.viii.2017; Malaise G &G; Krolow, T.K. & Equipe leg.

Distribution: Brazil (Goiás, Tocantins) ( COSCARÓN & PAPAVERO 2009; LIMA et al. 2015).

Comments: Anterior margin of epandrium and hypoproct lost during dissection.

Figures

Figure 3. Male of Dicladocera mutata Fairchild, 1958. A. Habitus, dorsal view; B. Habitus, lateral view; C. Head, anterior view; D-E. Epandrium, cercus and hypoproct (dorsal and ventral views, respectively); F-G. Hypandrium, gonocoxite, gonostylus and aedeagus (dorsal and ventral views respectively). Source: authors.