Neurigona orbicularis Becker, 1922

Silva, Paulo Cesar Da, Capellari, Renato S. & Oliveira, Sarah S., 2022, Three new species of the Neurigona orbicularis species group from Brazil (Diptera: Dolichopodidae), Zootaxa 5093 (5), pp. 547-558 : 552-553

Neurigona orbicularis Becker

Neurigona orbicularis Becker, 1922: 162 .

Redescription of hypopygium ( Figs 4 , 13–19 ). Genital capsule brown to dark brown, apices of surstyli paler ( Figs 4 , 13 ). Ventral lobe of surstylus ( Fig. 14 ) forked, with pointed projection bearing one strong, curved seta at apex and one straight seta at base of projection. Dorsal lobe of surstylus ( Fig. 15 ) elongate, cup-shaped; apex with microtrichia. Apicoventral epandrial lobe ( Fig. 16 ) very similar to N. lopesi sp. nov., four-branched, with one branch unsclerotized, delicate, arborescent-like with several tiny hairs. Basolateral epandrial lobe ( Fig. 17 ) simple, digitiform. Hypandrium ( Fig. 18 ) with distal part simple, without projections. Postgonite ( Fig. 18 ) with pointed apex and few microtrichia. Cercus ( Fig. 19 ) with dark, sclerotized, lateral part; medial part delicate, with digitiform projection, bifurcated at apex bearing one modified seta anteriad.

Examined material. BRAZIL. 4♂, 2♀, Mato Grosso do Sul, Bodoquena, Serra da Bodoquena ( Califórnia Farm ), 20°41′53.5″S 56°52′55.7″W, 6.ix.–6.x.2011, Malaise trap, C.J.E. Lamas, S.S. Nihei leg. ; 1♂, 1♀, same data except, Bodoquena , 20°41′55.9′′S 56°52′99.4′′W, 6–22.xii.2011 ; 1♂, same data except, 5–20.ii.2012 (all MZSP) ; 1♂, 1♀, Mato Grosso do Sul, Bodoquena, Serra da Bodoquena ( Califórnia Farm ), 20°41′53.5′′S 56°52′55.7′′W, 22.xi.–6.xii.2011, Malaise trap, C.J.E. Lamas, S.S. Nihei leg. ; 2♂, same data except, 22.xii.2011 – 6.i.2012 ; 1♀, same data except, Bodoquena , 20°41′55.9′′S 56°52′99.4′′W, 6–22.x.2011 (all UFG) ; 1♂, São Paulo, Teodoro Sampaio, Parque Estadual [State Park] Morro do Diabo , 23°36′17′′S 52°18′5.8′′W, 16.ix.2010, Malaise trap, point 3, NW Perioto et al. leg .; 3♂, same data except, 26.xi.2010 ; 1♂, 1♀, same data except, 22°36′15.9′′S 52°18′4.2′′W, 16.xii.2010, point 2 (all MZSP) .

Remarks. The overall description of N. orbicularis by Naglis (2003) is very accurate and we found no substantial differences from our specimens, as such, we have only provided a more detailed description and illustration of the male hypopygium.

Distribution. Paraguay and Brazil (State of Mato Grosso do Sul, Pantanal biome, and State of São Paulo, Atlantic Forest biome).

Figures

FIGURES 1–5. General habitus and male and female genitalia. 1–3. Neurigona lopesi sp. nov. 1. Habitus. 2. Male genital capsule. 3. Female ovipositor. 4. Neurigona orbicularis, genital capsule. 5. Neurigona tingua sp. nov., genital capsule. Scale bars = 1 mm (1) and 0.1 mm (2–5).

FIGURES 13–19. Hypopygium of Neurigona orbicularis Becker and its component appendages in left lateral view. 13. Hypopygium. 14. Ventral lobe of surstylus.15. Dorsal lobe of surstylus. 16. Apicolateral epandrial lobe. 17. Basolateral epandrial lobe. 18. Hypandrium (hyp) and postgonite (pgn). 19. Cercus. Scale bar = 0.1 mm.