Remarks on the genera Sphaerotarsus Womersley, 1936 and Hirstiosoma Womersley, 1934 (Acari: Smarididae), with a new distributional record of Hirstiosoma latreillei (Grandjean, 1947) from northern Iran

In this study, we provide a larval stage redefinition of the two genera Hirstiosoma and Sphaerotarsus (Trombidiformes: Smarididae) and new data on the larva of Hirstiosoma latreillei (Grandjean, 1947) collected from the soil and leaf litter of a section of the Hyrcanian forests near the Tilek village, Sari County, Mazandaran Province, Iran. Prior to this study, a single specimen of H. latreillei was collected from Asalem city in Guilan Province, Iran. The considerable distance between the previo