Palaeosepsis dentata (Becker, 1919)

Silva, Vera C. & Pollet, Marc, 2020, The Sepsidae of the Mitaraka expedition, French Guiana (Diptera), Zoosystema 42 (14), pp. 195-205 : 202

Palaeosepsis dentata (Becker, 1919) ( Fig. 1H ) / dentatiformis ( Duda, 1926)

Sepsis dentata Becker, 1919: 207.

Sepsis dentatiformis Duda, 1926a: 46 .

MATERIAL EXAMINED. — French Guiana • 1 ♀; Mitaraka: MIT-DZ; 02°14’01.8”N, 54°27’01.0”W; 306 m a.s.l.; tropical most forest (different sites) near DZ; 6-10.III.2015; FIT; Julien Touroult & Eddy Poirier leg.; FR-GU/ Mitaraka /2015; sample code MITA- RAKA/198 ; MNHN .

UPDATED DISTRIBUTION OF PALAEOSEPSIS DENTATA . — Argentina (Tucumán), Bolivia, Brazil (Minas Gerais, Rio de Janeiro, Santa Catarina, São Paulo), Colombia, Costa Rica, Ecuador, French Guiana, Honduras, Panama, Peru, Venezuela.

DISTRIBUTION OF PALAEOSEPSIS DENTATIFORMIS. — Costa Rica, Ecuador, Venezuela.

REMARKS

Both species, P.dentata and P. dentatiformis , were not recorded from French Guiana before, which renders this the first record of this genus for this part of South America, awaiting the discovery of male specimens that will allow an unequivocal species identification. This specimen has the dorsocentral setae arranged 0 + 2 (no presutural versus two postsutural dorsocentral setae), which excludes P. punctulata Ozerov, 2004 (with dorsocentral setae arranged 0 +1). The wing is not spotted at apex, which renders it either P. dentata or P. dentatiformis (both feature a wing without an apical spot). To differentiate between the two species, it is necessary to check male features.

New to French Guiana.

Figures

FIG. 1. — A, Archisepsis armata (Schiner, 1868); B, Archisepsis diversiformis (Ozerov, 1993); C, Meropliosepsis sexsetosa Duda, 1926; D, Microsepsis armillata (Melander & Spuler,1917);E, Microsepsis furcata (Melander & Spuler,1917);F, Microsepsis mitis (Curran,1927); G, Palaeosepsioides erythromyrmus (Silva, 1991); H, Palaeosepsis dentata (Becker, 1919). Scale bars: 1 mm. All pictures are retrieved from Sepsidnet 2013.