Biflabelotillus Pic, 1949

Pavel, Filip & Purchart, Luboš, 2024, Revision of Madagascan Cleridae (Coleoptera: Cleroidea). Part I. - The genus Biflabelotillus Pic, 1949 (Tillinae), Zootaxa 5519 (3), pp. 384-394 : 393-394

Key to species of Biflabelotillus Pic, 1949

1. Elytra uniformly coloured ( Figs 14, 17 , 21, 24 ) or at most with pale-brown humeral spot ( Fig. 28 ). Pronotum parallel-sided ( Figs 7, 8 ). Space between eyes relatively broad, HW / FW <4................................................. 2

- Elytra bicoloured with anterior half black and posterior half pale brown. ( Fig. 34 ). Sides of pronotum not parallel, widest before middle ( Fig. 9 ). Space between eyes very narrow, HW / FW> 4. Bituberculate foveae lacking in apical third of elytra......................................................................................... B. bicolorus sp. nov.

2. Elytra pale brown, pronotum and head dark brown. Larger species with body length greater than 10 mm. Inner interstriae completely smooth, without any tubercles. Bituberculate foveae lacking in apical fourth of elytra. Space between foveae larger than their diameter.................................................................. B. foveolatus Pic, 1949

- Whole body black. Smaller species with body length less than 8 mm. All interstriae slightly but distinctly ungulated and with tubercles. Bituberculate foveae present on almost whole elytral surface. Space between foveae smaller than their diameter................................................................................. B. peyrierasi Menier, 1979

Figures

FIGURE 13–20. Biflabelotillus foveolatus Pic, 1949—13–15 (lectotype), 16–20 (non-type). Fig. 13—labels of the lectotype; 14, 17—habitus, dorsal view; 15,16—habitus, lateral view; 18—habitus, ventral view; 19—scutellum; 20—bituberculate foveae (white arrows indicate the two tubercles on the top of the fovea).

FIGURE 21–27. Biflabelotillus peyrierasi Menier, 1979—21–23 (holotype), 24–27 (non-type, male). Fig. 21—labels of the holotype; 21, 24—habitus, dorsal view; 23, 25—habitus, lateral view; 26—scutellum; 27—bituberculate foveae (white arrows indicate the two tubercles on the top of the fovea).

FIGURE 28–32. Biflabelotillus peyrierasi Menier, 1979, female. Fig. 28—habitus, dorsal view; 29—habitus, ventral view; 30—antenna (red arrow indicates last antennomere); 31—scutellum; 32—bituberculate foveae (white arrows indicate the two tubercles on the top of the fovea).

FIGURE 1–12. Biflabelotillus foveolatus—1, 4, 7, 10; B. peyrierasi—2, 5, 8, 11; B. bicolorus sp. nov., holotype—3, 6, 9, 12. Fig. 1–3—right antenna, antennomers II-VI; 4–6—right antenna, antennomers IX–XI (red arrows indicate last antennomere); 7–9—head and pronotum, dorsal view; 10–12—head, front view.

FIGURE 33–37. Biflabelotillus bicolorus sp. nov., holotype. Fig. 33—habitus, lateral view; 34—habitus, dorsal view; 35— habitus, ventral view; 36—scutellum; 37—bituberculate foveae (white arrows indicate the two tubercles on the top of the fovea).