Figulus

Monte, Cinzia, Zilioli, Michele & Bartolozzi, Luca, 2016, Revision of the Australian species of Figulus MacLeay, 1819 (Coleoptera: Lucanidae), Zootaxa 4189 (3), pp. 447-484 : 449

Key for the identification of the Australian species of Figulus

1. Antenna with 10 antennomeres. Larger species (> 1 cm)....................................................... 2

- Antenna with 9 antennomeres. Smaller species (1 cm or less).......................... F. lilliputanus Westwood, 1855

2. Anterior margin of pronotum with a tubercle ( Figs. 1 , 12 , 16 , 20 , 25 )............................................. 3

- Anterior margin of pronotum trituberculate ( Fig. 30 ).................................... F. trilobus Westwood, 1838

3. Mentum with two bilateral, oval concavities ( Figs. 2 , 17 )...................................................... 4

- Mentum without two bilateral, oval concavities ( Figs. 9 , 13 , 21 , 26 , 31 )......................................... 5

4. Labrum narrow and almost equilaterally triangular ( Fig. 16 ); anterior pronotal angles with a narrow rim ( Fig. 16 )..................................................................................... … F. regularis Westwood, 1834

- Labrum wide, short, and truncate or shallowly convex ( Fig. 1 ); anterior pronotal angles with a broad horizontal rim ( Fig. 1 ).................................................................................. F. boileaui Bomans, 1989

5. Mentum with two small tubercles at sides near the base ( Fig. 13 )........................... F. nitens Waterhouse, 1874

- Mentum with two small tubercles present laterally ( Figs. 21 , 26 )............................................... 6

6. Head and pronotum sparsely and finely punctate ( Fig. 20 ); large subcircular punctures on the elytra ( Fig. 20 )................................................................................................. .. F. rossi Gahan, 1900

- Head and pronotum densely punctate ( Fig. 25 ); small suboval punctures on the elytra ( Fig. 25 ).............................................................................................. F. sulcicollis Hope in Westwood, 1845

Figures

FIGURES 1‒5. Figulus boileaui Bomans. 1, dorsal view of adult (scale bar: 5 mm); 2, mentum; 3, male genitalia, dorsal view (scale bar: 0.5 mm); 4, male genitalia, lateral view; 5, apex of flagellum (scale bar: 100 µm).

FIGURES 12‒15. Figulus nitens Waterhouse. 12, dorsal view of adult (scale bar: 5 mm); 13, mentum; 14, male genitalia, dorsal view (scale bar: 0.5 mm); 15, male genitalia, lateral view.

FIGURES 16‒19. Figulus regularis Westwood. 16, dorsal view of adult (scale bar: 5 mm); 17, mentum; 18, male genitalia, dorsal view (scale bar: 0.5 mm); 19, male genitalia, lateral view.

FIGURES 20‒24. Figulus rossi Gahan. 20, dorsal view of adult (scale bar: 5 mm); 21, mentum; 22, male genitalia, dorsal view (scale bar: 0.5 mm); 23, male genitalia lateral view; 24 apex of flagellum (scale bar: 200 µm).

FIGURES 25‒29. Figulus sulcicollis Hope in Westwood. 25, dorsal view of adult (scale bar: 5 mm); 26, mentum; 27, male genitalia, dorsal view (scale bar: 0.5 mm); 28, male genitalia, lateral view; 29, apex of flagellum (scale bar: 200 µm).

FIGURES 30‒34. Figulus trilobus Westwood. 30, dorsal view of adult (scale bar: 5 mm); 31, mentum; 32, male genitalia, dorsal view (scale bar: 0.5 mm); 33, male genitalia, lateral view; 34, apex of flagellum (scale bar: 200 µm).

FIGURES 8‒11. Figulus lilliputanus Westwood. 8, dorsal view of adult (scale bar: 5 mm); 9, mentum; 10, male genitalia, dorsal view (scale bar: 0.5 mm); 11, male genitalia, lateral view.