Setizembrus bispinosus Germann, 2025

Germann, Christoph, 2025, Setizembrus Germann, a new genus of the subtribe Cotasteromimina with five new species from Malaysia (Coleoptera, Curculionidae: Molytinae, Pissodini), Zootaxa 5659 (2), pp. 283-295 : 287

Setizembrus bispinosus Germann sp. nov.

http://zoobank.org/ urn:lsid:zoobank.org:act:FF4F7221-0EA5-4C2C-B764-BFB046BC0836

Figs. 2 A–J .

Holotype: male: MALAYSIA, PAHANG, 2003; Cameron Highlands ; TANAH RATA, 1500–1700m; P. Pacholátko leg. 1.-13.ii. ( NMB).

Description. Body length: 4.10 mm. Body dark auburn ( Fig. 2A–C ), prothorax and elytra with both, bowed, light brown, pointed and raised, clubbed, elongate scales, more than four times longer than wide, rounded apicad. Rostrum shorter than pronotum, ( Fig. 2C, D ); in dorsal view weakly narrowed just behind antennal insertion, widening anteriad, and towards frons. Underside of rostrum with median tooth on submentum just posterior of mouthparts. Funicular antennomeres subequal (2 nd and 3rd) or transverse (4th to 7th). Club of antennae egg-shaped ( Fig. 2J ). Ocular lobes weakly pronounced ( Fig. 2D ), set with teeth ( Fig. 2E ). Prothorax about as long as wide (L/B: 1.06) ( Fig. 2A ), strongly constricted before fore margin; dorsal surface with coarse, polyhedric punctures separated by broad ridges ( Figs 2A ). Basisternum raised and set with two raised apically flattened spines ( Fig. 2F ). Procoxae subcontiguous; mesocoxae separated by their diameter; metacoxae separated by less than twice their diameter ( Fig. 2B ). Externally visible part of scutellum small and pentagonal ( Fig. 2I ). Elytra elongate (L/B: 1.7), dorsally widest at shoulders, attenuate from there to apex, hind wings present. Intervals as wide as striae, uneven elytral intervals weakly raised; raised (uneven) intervals on elytra with regularly arranged clubbed-elongate raised scales and shorter, pointed recumbent scales; even intervals with irregularly arranged clubbed-elongate scales. Each puncture of striae laterally with a small granule and thin recumbent bristle at anterior margin. Meso-, metaventrites and abdominal ventrites weakly punctate; each puncture with a clubbed and bowed, yellowish scale ( Fig. 2B ). Legs slender, femora clubbed, profemora with sharp ventral tooth ( Fig. 2C ). Tarsi with bilobed third tarsomere; claws free. Penis broad shovel-shaped, tip obtuse-angled, dorso-ventrally flattened, with four huge internal sclerites forming an arrow-like shape with two tube-like sclerites reaching in a curl far beyond apodemes ( Fig. 6D–F ). Female unknown.

Derivation of name: This species is named “bispinosus ” after the conspicuous apically flattened double spines on the basisternum.

Figures

FIGS 2A–C. Setizembrus bispinosus. Holotype habitus dorsal, ventral and lateral views. 2D. Frontolateral view. 2E. Lateral view on teeth posterior to ocular lobe. 2F. Double spines on basisternum anterior to procoxae. 2G. Bilobed third tarsomere. 2H. Ventrites (4th destroyed). 2I. Scutellum. 2J. Antenna (Photos: C. Germann).

FIGS 6A–C. Setizembrus semai. Holotype penis ventral, dorsal and lateral views. D–F. Setizembrus bispinosus. Holotype, same. G–I. Setizembrus geiseri. Holotype, same. J–L. Setizembrus pendleburyi. Same. M–O. Female genitalia of S. geiseri. M. Spermatheca. N. Gonocoxites. O. Ventrite 7. P–R. Same for S. lyali. S–U. Same for S. pendleburyi. (Photos: C. Germann).