Key Afrotropical Lonchaea males with two katepisternal setae

1 Male genitalia: parameres long and blade-like (Fig.4), hypandrium with a long posterior apodeme reaching to near base of cerci (Fig. 1)...( L. polyhamata group) ...................................................................... 2

- Male genitalia without blade-like parameres, hypandrium without a long posterior apodeme.......................... 8

2 Parameres with outer apical margin smooth (Figs. 24 & 28).................................................... 3

- Parameres with spicules on outer apical margin (Figs. 4, 7, 12, 16 & 19).......................................... 4

3 Only one paramere with a strong medial tooth (Fig. 24). Posterior process of surstylus bearing large two claw- like projections and a smaller medial one (Figs. 21–23)................................................... polyhamata McAlpine

- Both parameres with a strong medial tooth (Figs. 25 & 28). Posterior process of surstylus with three ventrally directed projections (Figs 25–27)....................................................................... teratosa McAlpine

4 Parameres broad (Figs. 4 & 16).......................................................................... 5

- Parameres long and narrow (Figs. 7, 12, & 19).............................................................. 6

5 Parameres apically with numerous processes, spicules and setulae (Fig. 4). In lateral view posterior process of surstylus with two long curved posterior projections (Figs. 2 & 3)................................................ dama sp. nov.

- Parameres apically with only a single large, blunt medial process, spicules limited to a small outer area (Fig. 16). In lateral view posterior process of surstylus with a single posterior tooth-like projection (Figs 13–15)................ taita sp. nov. 6 Paramere almost straight, 2 rather small medial processes, numerous spicules near apex on outer margin (Fig 12). Posterior process of surstylus with three similar sized medially directed projections (Figs. 9–11)................... njombe sp. nov.

- Apices of parameres curved outwards at apex, medial processes larger and more obvious (Figs. 7 & 19)................. 7

7 Apex of paramere smoothly curved outwards, with one large and one smaller medial process (Fig. 7). Posterior process of surstylus with a three similar sized projections (Figs. 5 & 6)........................................... mbeya sp. nov.

- Apex of paramere curved outwards at almost right angles, one large and several smaller medial projections (Figs. 19 & 20) In lateral view posterior process of surstylus with two rather blunt projections and a long, curved medial projection (Figs. 17 & 18)...................................................................................... zomba sp. nov.

8 Eyes covered with long white hairs. Orbital plate bearing setulae. Last apparent abdominal tergum elongate. Male genitalia; surstylus with a very large, angled posterior projection, a large serrated spike arising from base of cerci (Figs. 29–31).............................................................................................. aberdare sp. nov.

- Eyes bare, orbital plates bare. Male terminalia not as above.................................................... 9

9 Epandrium elongated into a large rounded ventral process.Ventral lobe of surstylus bearing a black stump-like process at medial base, left twice as large as that on right; apices of these processes irregularly serrate (Figs 39–41)...................................................................................................... dichaeta McAlpine

- Epandrium without a large rounded ventral process.......................................................... 10

10 Epandrium in lateral view more rectangular with a large rounded postero-ventral process. Medial surface of surstylus with 2 small posterior teeth. (Figs. 33–36).......................................................... kleynbergi sp. nov.

- Epandrium almost circular in lateral view, without ant processes. Medial margins of surstyli with a single, large slightly curved process (Figs. 37–38).................................................................... muhavura sp. nov.