| The prpl seta or setula is often minute, and is absent in all Chyromyinae. |
| First flagellomere elongate, slightly longer than scape and pedicel combined, without dorsal setula. |
| Pedicel simple, short, expanded apically with row of setulae along anterior margin, setulae becoming progressively longer ventrally, 1 dorsal, erect setula. |
| Anepimeron setulose on upper portion, with one setula more developed. |
