Key to the species of the genus Lobogynium (adults)

1. Antero-lateral circum-anal area strongly sclerotised (Figs 3, 5, 8); metasternal shields fused entirely in a single plate along the medial margins (Fig. 4 E); palpal femur with long and stout setae d1 and d2 and spur-like seta al (Fig. 2 B); distance between ventral setae JV2 almost equal to distance between setae JV2 and anterior margin of anal opening (Figs 3, 5); distance between ventral setae JV2 and ZV2 shorter than distance between setae ZV2 and lateral margin of ventri-anal shield (Figs 3, 5) [Palaearctic region]............................................................... Lobogynium sudhiri (Datta, 1985)

- Circum-anal area sclerotised similarly to the remaining part of the ventri-anal shield; metasternal shields separate; setae d1, d2 and al on palpal femur simple and needle-like; distance between ventral setae JV2 clearly shorter than distance between setae JV2 and anterior margin of anal opening; distance between ventral setae JV2 and ZV2 longer than distance between setae ZV2

and lateral margin of ventri-anal shield or setae ZV2 on lateral margin of ventri-anal shield........................... 2 2. Latigynal shields with antero-lateral margins heavily bilobate; sternal setae st2 about in initial point of postero-lateral prolongations of the shield; ventral setae ZV2 on lateral margin of ventri-anal shield [South Africa]............................................................................................... Lobogynium rotundatum Trägårdh, 1950

- Latigynal shields with antero-lateral margins indistinctly bilobed; sternal setae st2 placed near the anterior margin of the shield; ventral setae ZV2 distant from lateral margin of ventri-anal shield [Japan]....... Lobogynium pascuum Ishikawa, 1968