Dannfeltia nana Sjöstedt, 1902

Massa, Bruno, 2022, New and less known Orthoptera from biodiversity hotspots of Mozambique and Zambia (Tettigoniidae; Acrididae), Fragmenta entomologica 54 (1), pp. 27-44 : 33-35

Dannfeltia nana Sjöstedt, 1902

Material examined. Mozambique: Maputo Special Reserve, Futi Corridor, Sand Forest Woodland Mosaic, Actinic Light Trap 23-24.II.2018, G. Laszlo, J. Mulvaney, L. Smith (2♂) ; Mozambique: Maputo Special Reserve, Futi Riverine Forest 5.XII.2016, M. Aristophanous, J. Cristovão, G. Laszlo, W. Miles (2♂) ; Mozambique: Maputo Special Reserve, West Gate, Sand Forest , Actinic Light Trap 13-15.II.2018, G. Laszlo, J. Mulvaney, L. Smith (7♂, 1♀) ; Mozambique: Maputo Special Reserve, West Gate, Sand Thicket , Actinic Light Trap 24-25.II.2018, G. Laszlo, J. Mulvaney, L. Smith (3♂) ; Mozambique: Maputo Special Reserve, West Gate, Sand Thicket , Actinic Light Trap 9-17.II.2018, G. Laszlo, J. Mulvaney, L. Smith (6♂, 1♀) ; Mozambique: Maputo Special Reserve, West Gate, Sand Forest , Actinic Light Trap 21-22.II.2018, G. Laszlo, J. Mulvaney, L. Smith (3♂) ; Mozambique: Maputo Special Reserve, Ponta Milibangalala, Dune Grassland , MV Light Trap 17-21.II.2018, G. Laszlo, J. Mulvaney, L. Smith (1♂) ; Mozambique, Maputo Special Reserve, Ponta Milibangalala, Dune Grassland , Actinic Light Trap 17-21. II.2018, G. Laszlo, J. Mulvaney, L. Smith (2♂) ; Mozambique: Maputo Special Reserve, West Gate, Sand Thicket, MV Light Trap 10-17.II.2018, G. Laszlo, J. Mulvaney, L. Smith (1♀) ( ANHRT).

Remarks. Dannfeltia nana , thought synonym of Phaneroptera sparsa Stål, 1857 , was recently reinstated as different genus on the basis of the stridulatory file shape and other characters ( Massa 2021a). An overlooked character that allows to separate Dannfeltia from Phaneroptera is the ratio between the length of hind wings and tegmina; in Phaneroptera it is 1.4-1.5, while in Dannfeltia is 1.2-1.3, the hind wings exceeding not so much tegmina as in Phaneroptera . D. nana is presently known from Democratic Republic of Congo (holotype), Mozambique (present specimens), Gabon, Central African Republic, and Ivory Coast.

Description of the female. Among specimens collected in Mozambique also 3 females of this species were collected, whose habitus was previously unknown. Characters are the same of the male (see the re-description in Massa 2021a), with the exception of the subgenital plate, which is short, and triangularly pointed. The ovipositor is more upcurved than in Phaneroptera .

Measurements of the females (in mm). Body length: 13.0-13.9; length of pronotum: 3.2-3.4; height of pronotum: 2.4-2.5; length of hind femora: 13.7-14.3; length of tegmina: 18.7-18.8; width of tegmina: 3.9-4.0; length of ovipositor: 3.9-4.0.