Losgna Cameron, 1903

Chaudhary, Karmannye Om & Reinisch, Sophia, 2025, Rediscovery and description of a new species of Losgna (Cameron 1903): reviving a forgotten ichneumonid genus in India, Zootaxa 5632 (3), pp. 595-600 : 596

Key to Indian species of Losgna Cameron, 1903

1. Hind tibiae yellowish on basal two-thirds (apex black); hind coxa black; all tergites with apical bands with tergites 3–4 often narrowed/interrupted medially................................................ simulator ( Townes & Gupta 1961)

- Hind tibiae entirely black; hind coxa pale fulvous ( Fig 2E ); tergites 2 and 3 without continuous apical bands with only pale lateral markings ( Fig 2G )............................................................................... 2

2. Mesonotum without pale longitudinal lines; hind femur reddish brown with dark base ( Fig 2E ); large species, 15.0 mm long................................................................................ forticeps ( Cameron, 1903)

- Mesonotum with two short longitudinal lines in the middle; hind femur almost or completely reddish yellow; smaller species, 10.0–13.0 mm long.................................................................................... 3

3. Clypeus, face and gena entirely white; hind tibia and tarsus dark brown; posterior bands of 4th and 5th tergites wider, usually complete, not interrupted medially...................................................... indica ( Heinrich, 1965)

- Clypeus, face and gena (cheeks) patterned with black; hind tibia red with black base and apex; 4th tergite with very narrow posterior band often interrupted in the middle, 5th tergite with narrow white posterior margin......................... 4

4. 1 st flagellomere 3.0 × longer than wide; fore coxa, mid coxa extensively red at base; hind coxa light red with clearly delimited yellow spots dorsally; small species, 9.0 mm long............................. bambusicola indicola ( Heinrich, 1965)

- 1 st flagellomere 2 × longer than wide; fore coxa, mid coxa ivory; hind coxa black with one large white spot dorsally ( Fig 1B ); larger species, 12.8 mm ................................................................. occidentalis sp. nov.

Figures

FIGURE 1. Losgna occidentals sp. nov. A—face, frontal view, B—face and propodeum side view C—propodeum, dorsal view, D—basal tergites, dorsal view.

FIGURE 2. Losgna forticeps (Cameron 1903). E—face and propodeum side view F—labels, G—propodeum and basal tergites, dorsal view.