Nomada ruficornis species group

Nomada ruficornis species group Alexander 1994:222.

Gnathias Robertson 1903: 173, 175–176.

Type species: Nomada bella Cresson, 1863 .

Nomada (Heminomada) Cockerell & Atkins 1902: 42 .

Type species: Nomada obliterata Cresson, 1863 .

Lamproapis Cameron 1902: 419–420 .

Type species: Lamproapis maculipennis Cameron, 1902 .

Phor Robertson 1903: 174 .

Type species: Nomada integerrima Dalla Torre, 1896 .

Xanthidium Robertson 1903: 174, 177.

Type species: Nomada luteola Oliver, 1811 .

Nomada zonata group of Stöckhert 1941: 1072–1122.

Diagnosis. Body size small to moderate, about 5–10 mm. Scape mostly cylindrical but width of scape in comparison with flagella significantly variable in male. F1 distinctly shorter than F 2 in both sexes. Gonostylus cylindrical, rounded apically, and slightly bent posteriorly but not strongly as in furva species-group. For further diagnostic characters, see Alexander (1994).

Distribution. Holarctic