Eudraces, Borovec & Nakládal, 2018

Borovec, Roman & Nakládal, Oto, 2018, Eudraces barclayi sp. nov., with some notes on the genus Eudraces Marshall (Coleoptera: Curculionidae: Entiminae: Myorhinini), Zootaxa 4392 (2), pp. 374-382 : 381

Key to EudraceS species

1. Rostrum short and robust, slightly longer than pronotum, at base distinctly wider than profemora at midlength. Elytra short oval, 1.1–1.2× as long as wide. Funicle segment 2 short, 1.8–1.9× as long as wide. Small species, 2.3–2.7 mm long............................................................................................... E. barclayi sp. n.

- Rostrum long and slender, distinctly longer than pronotum, at base as wide as profemora at midlength. Elytra elliptic to ovate, 1.4–1.8× as long as wide. Funicle segment 2 long and slender, 3.1–4.2× as long as wide. Larger species, 3.3–5.5 mm long.. 2

2. Elytra at disc with semierect setae, well visible in lateral view, setae longer than half the width of one interval. Metatibiae of males indistinctly denticulate, without long setae at inner side ( Fig. 12 ). Penis laterally with conspicuously widened, dropshaped tip ( Fig. 16 ). Size 3.8–4.8 mm ................................................. E. flavirostris Marshall

- Elytra at disc with semiappressed to appressed setae, hardly visible in lateral view, setae shorter than half the width of one interval. Metatibiae of males distinctly denticulate, with grooming brush on inner side comprising long setae ( Figs 10, 11, 13 ). Penis laterally evenly tapered apicad ( Figs 14, 15, 17 )......................................................... 3

3. Larger species, 5.3–5.5 mm. Rostrum robust, in lateral view at base 1.5× as wide as diameter of eyes. Metatibiae in males on inner side with indistinct incurvation, with spines apically rounded ( Fig. 13 )....................... E. munroi Marshall

- Smaller species, at most 4.0 mm long. Rostrum slender, in lateral view equally wide or only slightly wider than diameter of eyes. Metatibiae in males deeply incurved, with spines pointed ( Figs 10, 11 )....................................... 4

4. Rostrum in lateral view with dorsal border weakly regularly curved at place of antennal insertion. Antennal insertion in males at apical quarter of rostrum. Penis in ventral view evenly tapered apicad with straight sides ( Fig. 15 ). Size 3.4–3.5 mm ............................................................................................ E. faurei Marshall

- Rostrum in lateral view with dorsal border hump-shaped at place of antennal insertion. Antennal insertion in males at apical third of rostrum. Penis in ventral view before tip with weakly concave sides ( Fig. 14 ). Size 3.3–4.0 mm...................................................................................................... E. fallaciosus (Voss)

Figures

FIGURES 2–17. Structural details of Eudraces Marshall. 2–9. E. barclayi sp. n. 2. head with rostrum, dorsal view; 3. head with rostrum, lateral view; 4. right metatibia; 5. penis, ventral and lateral view; 6. tegmen, dorsal view; 7. sternite VIII of female, dorsal view; 8. ovipositor, dorsal view; 9. spermatheca. 10–13. right metatibia. 10. E. fallaciosus (Voss); 11. E. faurei Marshall; 12. E. flavirostris Marshall; 13. E. munroi Marshall. 14–17. penis, ventral and lateral view. 14. E. fallaciosus (Voss); 15. E. faurei Marshall; 16. E. flavirostris Marshall; 17. E. munroi Marshall.