Basidissus

Trýzna, Miloš & Baňař, Petr, 2013, A new species of the genus Basidissus (Coleoptera: Anthribidae) from east Madagascar, with a key to species, Zootaxa 3721 (1), pp. 71-78 : 77

Key to Madagascan Basidissus species

1 Pronotum with two low, inconspicuous tufts of setae forming only small tubercles, colour of body uniformly dark, only ante- rior part of pronotum and dorsum of head with yellow pubescence ( Figs. 4 , 10 )................ B. fulvitarsis Frieser, 2007

- Pronotum with one or three distinctly erect tufts of setae, colour of body different................................... 2

2 Pronotum with one central distinct and erect tuft of setae...................................................... 3

- Pronotum with three long (one central and two dorso-lateral), conspicuously erect tufts of setae........................4

3 Lateral carina only slightly emarginate in dorsal view, in contact with dorsal transverse carina right-angled. Elytra with low and inconspicuous tufts of hairs; total body length about 3.0 mm......................... B. bendai sp. nov. ( Figs. 1 , 7 )

- Lateral carina deeply emarginate in dorsal view, angulose, in contact with dorsal transverse carina lobe-like. Elytra with con- spicuously erect tufts of setae; total body length about 6.5 mm ...................... B. senilis Frieser, 2000 ( Figs. 6 , 12 )

4 Lateral carina of pronotum straight in dorsal view, not emarginate.................... B. cirrifer Frieser, 2000 ( Figs. 2 , 8 )

- Lateral carina of pronotum emarginate in dorsal view......................................................... 5

5 Lateral carina conspicuously emarginate in dorsal view, with obtuse angle in the middle of emargination. Dorsum of body uni- formly greyish, tufts of setae somewhat lighter.................................... B. incilis Frieser, 2000 ( Figs. 5 , 11 )

- Lateral carina shallowly, regularly emarginate in dorsal view, without obtuse angle in the middle of emargination. Dorsum of head and pronotum greyish, elytra dark copper with numerous whitish spots. Central tufts of hairs on elytra particularly grey- ish................................................................. .. B. cristatus Fairmaire, 1897 ( Figs. 3 , 9 )

Figures

FIGURES 1 – 6. Madagascan Basidissus species, dorsal view, 1, B. bendai sp. nov., female holotype (3.0 mm); 2, B. cirrifer Frieser, 2000 (7.2 mm); 3, B. cristatus Fairmaire, 1897 (4.9 mm); 4, B. fulvitarsis Frieser, 2007 (4.6 mm); 5, B. incilis Frieser, 2000 (6.1 mm); 6, B. senilis Frieser, 2000 (6.5 mm).

FIGURES 7 – 12. Madagascan Basidissus species, lateral view, 7, B. bendai sp. nov., female holotype (3.0 mm); 8, B. cirrifer Frieser, 2000 (7.2 mm); 9, B. cristatus Fairmaire, 1897 (4.9 mm); 10, B. fulvitarsis Frieser, 2007 (4.6 mm); 11, B. incilis Frieser, 2000 (6.1 mm); 12, B. senilis Frieser, 2000 (6.5 mm).