Lobogynium

Plumari, Massimo & Kazemi, Shahrooz, 2012, Redescription and neotype designation of Lobogynium sudhiri (Datta) (Acari: Diplogyniidae), a mite associated with beetles of the genus Atholus (Thomson) (Coleoptera: Histeridae) in the Palaearctic region, Zootaxa 3352, pp. 1-16 : 4-5

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

Figures

FIGURE 2. Lobogynium sudhiri. A. Leg I; B. Palp, lateral view (setae of the tibia and tarsus are not all illustrated); C. Gnathosoma, ventral view. Hypopharyngeal styli (Gorirossi, 1989) not illustrated. S = sensillum. Scale bar = 100 μm.

FIGURE 3. Lobogynium sudhiri, female, ventral view. Scale bar = 250 μm.

FIGURE 4. Lobogynium sudhiri, female. A. Sternal shield; B. Genital shields; C. Chelicera, lateral view; D. Epistome; E. Metasternal plate with vaginal sclerites. Scale bar = 100 μm.

FIGURE 5. Lobogynium sudhiri, male, ventral view. Scale bar = 250 μm.

FIGURE 8. Lobogynium sudhiri, ventral habitus. A, female; B, male.