Only known from Xiao Cave, Hekou Yaozu Autonomous County, Yunnan Province, China.

Although callipodidans are often found in caves, especially in Southeast Asia and southern Europe, there are no species among them possessing an eye reduction similar to that observed in Sinocallipus jaegeri and Sinocallipus simplipodicus. Other peripheral characters, such as the elongated antennae and legs, in addition to the apparent depigmentation, also indicate their adaptation to the underground environment. A specimen of Sinocallipus jaegeri was found also outside caves, perhaps in deeper soil layers. The type specimens of Sinocallipus simplipodicus which are perhaps preserved in the Institute of Zoology, Chinese Academy of Sciences, or new topotypic material need to be examined to supplement the original description of Zhang which suffers from the poor quality of its illustrations.