Key to the female genitalia of Palaearctic Kiwaia -species
(The females of K. (E.) dryosyrta, K. (E.) nyingchiensis sp. n., K. (E.) mengdana sp. n., K. (E.) spinosa, K. (E) montana sp. n., K. (E.) povolnyi sp. n. and K. (E.) ramulata are unknown)
1. Subgenital plate with paired prolonged drop-shaped sclerites, corpus bursae shorter than ductus bursae (Fig. 62).................................................................................................... K. (E.) kumatai
- Subgenital plate without additional sclerites, corpus bursae longer than ductus bursae.............................. 2
2. Lobes of anteromedial depression exceeds over anterior margin of sternite VIII (Figs 58, 59)........ K. (E.) centrica sp. n.
- Lobes of anteromedial depression do not exceed over anterior margin of sternite VIII.............................. 3
3. Lateral sclerotization of antrum present, it extending to the entrance of corpus bursae (Fig. 57).. K. (E.) septentrionala sp. n.
- Lateral sclerotization of antrum absent................................................................... 4
4. Subgenital plates far exceed over the anterior margin of sternite VIII, subostial sclerites not reverse-shaped (Figs 60, 61).. 5
- Subgenital plates do not exceed over the anterior margin of sterite VIII, subostial sclerites reverse-shaped (Figs 54–56)... 6
5. Apophyses anteriores very short, antrum weakly inflated (Fig. 61).......................... K. (E.) yadongensis sp. n.
- Apophyses anteriores long, antrum tubular (Fig. 60)......................................... K. (E.) medogia sp. n.
6. Subostial sclerites long, signum long, antrum short, ductus bursae broad (Figs 55, 56)................... K. (E.) kostjuki
- Subostial sclerites short, signum short, antrum long, ductus bursae narrow (Fig. 54)................ K. (E.) palaearctica