Micrambe, Thomson, 1863

Otero, José Carlos & Pereira, José Manuel, 2019, Neomicrambe subgen. nov. of Micrambe Thomson, 1863 (Coleoptera: Cryptophagidae) from East Africa, Zootaxa 4674 (1), pp. 47-67 : 49

Key to the subgenera of Micrambe

1 Subgenal spine absent; antennae long and delicate; body generally yellowish grey-brown, sometimes also with dark elytral maculations.......................................................................................... 2

- Subgenal spine present; antennae robust; elytra with an elongated dark spot in the middle............. Micrambinus Reitter

2 Sutural stria absent; parameres flattened; the apical part of the ring-shaped part of the tegmen is not dilated................................................................................................... Micrambe Thomson

- Sutural stria visible in the posterior 2/3 of the elytra ( Fig. 9a ); paramere not flattened, generally very small, triangular and provided with 3 or 4 apical setae longer than the paramere; the apical portion of the ring-shaped part of the tegmen is very dilated ( Figs 1f , 2e , 3e , 4e , 5e , 6e , 7e , 8d , 9f , 10e , 11e )......................................... Neomicrambe subgen. nov.

Figures

FIGURE 1. Micrambe alluaudi: (a) forebody, dorsal; (b) antenna; (c) aedeagus; (d) endophallic armature; (e) paramere; (f) paramere with the distal area of the tegmen, lateral view.

FIGURE 2. Micrambe bujukuensis: (a) forebody, dorsal; (b) antenna; (c) aedeagus; (d) paramere; (e) paramere with the distal area of the tegmen, lateral view.

FIGURE 3. Micrambe crateris: (a) forebody, dorsal; (b) antenna; (c) aedeagus; (d) paramere; (e) paramere with the distal area of the tegmen, lateral view.

FIGURE 4. Micrambe figurata: (a) forebody, dorsal; (b) antenna; (c) aedeagus; (d) paramere; (e) paramere with the distal area of the tegmen, lateral view.

FIGURE 5. Micrambe helichrysi: (a) forebody, dorsal; (b) antenna; (c) aedeagus; (d) paramere; (e) paramere with the distal area of the tegmen, lateral view.

FIGURE 6. Micrambe johnstoni: (a) forebody, dorsal; (b) antenna; (c) aedeagus; (d) paramere; (e) paramere with the distal area of the tegmen, lateral view.

FIGURE 7. Micrambe kigoensis: (a) forebody, dorsal; (b) antenna; (c) aedeagus; (d) paramere; (e) paramere with the distal area of the tegmen, lateral view.

FIGURE 8. Micrambe minor: (a) forebody, dorsal; (b) antenna; (c) aedeagus; (d) paramere with the distal area of the tegmen, lateral view.

FIGURE 9. Micrambe senecionis: (a) dorsal habitus showing sutural striation; (b) forebody, dorsal; (c) antenna; (d) lateral view of aedeagus showing protuberance in the basal third of the lateral margin; (e) aedeagus; (f) paramere with the distal area of the tegmen, lateral view.

FIGURE 10. Micrambe subinfuscata: (a) forebody, dorsal; (b) antenna; (c) aedeagus; (d) paramere; (e) paramere with the distal area of the tegmen, lateral view.

FIGURE 11. Micrambe varicolor: (a) forebody, dorsal; (b) antenna; (c) aedeagus; (d) paramere; (e) paramere with the distal area of the tegmen, lateral view.