Anurophorus alpinus Potapov & Stebaeva, 1990 (Fig. 3)

Material examined. 14 specimens, Iran, Mazandaran province, Sari, Farim, Bula forest, soil, N36°03'45.98", E53°18'36.96", 1675 m a.s.l., 19-IV-2021, leg. E. Yoosefi Lafooraki.

Distribution. Caucasus (Potapov, 2001). This species is reported for the first time from Iran.

Diagnosis. The identification of the species was done according to Potapov (2001) as below: Body length about 1 mm and the colour is blackish blue. Dorsal integument with rather weak reticulation, on Abd. V much stronger (Fig. 3A). Eye-patches with 8+8 ommatidia. PAO is 2 times as long as the diameter of the ommatidium. Claw without the inner tooth. Empodium is reduced, shorter than ¼ of the inner edge of the claw on the legs of all pairs (Fig. 3C). Tibiotarsi with distinctly clavate hairs. Th. I-III with 1+1, 1+1, 3-6+3-6 ventromedial setae, tenacular area (a small organ, appended to the third abdominal segment, which holds the furcula in position under the abdomen) with 3–4 area (Fig. 3D).

Remarks. In the original description of the species, Ant. IV was mentioned with a distinctly divided apical bulb, but in specimens found in this study, the apical bulb on Ant. IV is simple (Fig. 3B).