Trachysphaera
| Trachysphaera | |
|---|---|
| Trachysphaera sp. | |
| Trachysphaera lobata | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Myriapoda |
| Class: | Diplopoda |
| Order: | Glomerida |
| Family: | Glomeridae |
| Genus: | Trachysphaera Heller, 1858 |
| Synonyms | |
| |
Trachysphaera is a genus of dwarf pill millipedes in the order Glomerida. Just over 30 species are known, making it the third most species-rich genus of Glomerida. Trachysphaera species are patchily distributed throughout Europe and western Asia, extending from Spain to Caucasia. Members of this genus are tiny, with modified appearances resembling that of calcareous stones.