| 1a. Dorsal surface of epiproct margined with stiff dorsally directed hairs, center of disk is bare. |  |
| 1b. Dorsal surface of epiproct covered entirely with hairs. |  |
| 2a. Posterior margin of tergum 9 with median third extended posteriorly to form a tab, occasioanlly may be folded under. |  |
| 2b. Posterior margin of tergum 9 straight, not forming tab. |  |