Burrowing habits of two Arthropods; Odenthobutus doriae and Hemilepistus schirasi in desert of Isfahan, Iran

Burrows of O. doriae were in slop areas with one side tumulus, having oval entrance, 12–15 mm in small diameter and 25–45 mm in large diameter with the mean length and depth of 38 and 20.5 cm. Whereas burrows of H. schirasi were approximately in flat regions with round tumulus, having circle entrance, 8–11 mm in diameter and the mean length and depth of 80 cm and 62.5 cm. burrows of O. doriae were built as a simple tunnel at 10 cm of the beginning, then followed by spherical shape, continued to end with the slope of 44 to 50 percent. but H. schirasi has tendency to dig semi cylindrical shape borrow as a tunnel with the slope of 80 to 85 percent. the excavated soil texture for O. doriae burrows was soft soil to gravel. but the tumulus structure for H. schirasi burrows consisted of perfectly regular blocks, 1.5 mm in wide and 3.5 mm in length.