Haplodesmidae

Haplodesmidae is a family of millipedes in the order Polydesmida. Species occur in East Asia, Southeast Asia, and Oceania, although some species have been introduced to the New world tropics. Species are small bodied (generally less than 10 mm), often with elaborate sculpturing on the tergites (dorsal portion of exoskeleton), and some species are capable of rolling into a near-complete ball.[1][2]

Haplodesmidae
Eutrichodesmus aster
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Diplopoda
Order:	Polydesmida
Superfamily:	Haplodesmoidea
Family:	Haplodesmidae Cook, 1895
Synonyms
Doratodesmidae Cook, 1896

This family includes some species that feature unusual deviations from the segment numbers normally observed in the order Polydesmida. For example, some species exhibit sexual dimorphism in segments number: not only Prosopodesmus panporus and Eutrichodesmus peculiaris (adult females with 20 segments, adult males with 19, including the telson) but also Doratodesmus pholeter (adults females with 19 segments, adult males with 18, including the telson).[3] This family also includes two species notable for being among the few species in Polydesmida to feature only 18 segments (including the telson) in adults (both sexes in D. hispidus and males only in D. pholeter).[3]