Haplodesmidae

Haplodesmidae is a family of millipedes in the order Polydesmida. This family includes more than 70 species. Species occur in East Asia, Southeast Asia, and Oceania, although some species have been introduced to the New world tropics.

== Description == Species in this family are small, usually less than 10 mm in length. The tergites are always very convex, often with elaborate sculpturing in the form of two to four transverse rows of tubercles. Many species are capable of volvation (rolling into a near-complete ball), but some are not. The ozopores appear on the dorsal surface of the paranota. The sterna are so narrow that the walking legs are contiguous where they emerge from the body. The gonopods emerge from an aperture that is relatively modest in size and shaped like a transverse oval. Species in this family hold their gonopods parallel to the main axis of the body in a considerable hollow in the middle of the ventral surface. The gonopods do not cross, even at the distal end.