| 1a. Genital hooks long and developed from hind margin of the tenth tergum; anterior to base of cerci. |  |
| 1b. Genital hooks shorter and triangular in shape; developed from paraprocts, posterior to cercal bases. | |
| 2a. Tenth tergum with mesal tergite separated anteriorly and laterally by membranous areas. Hammer almost square. |  |
| 2b. Tenth tergum without separated tergite, but sometimes with light sclerotization. Hammer oval |  |