Cleopomiarus nuerhachii Jiang & Caldara, 2018

Jiang, Chunyan, Caldara, Roberto & Zhang, Runzhi, 2018, A taxonomic revision of Chinese Cleopomiarus Pierce (Coleoptera: Curculionidae) with description of two new species, Zootaxa 4378 (3), pp. 337-355 : 344

Cleopomiarus nuerhachii Jiang & Caldara n. sp.

Type locality. Shenyang Dongling (Liaoning, China).

Type specimen. Holotype, male, CHINA: Liaoning: Shenyang Dongling (41°49′N; 123°35′E, 61m), 26-V- 1963, leg Hongxing Li.

Diagnosis. Body length 3.46 mm. Dorsal vestiture unicolorous, greyish. Rostrum long, weakly curved in lateral view, cylindrical, of same width from base to apex. Pronotum distinctly transverse, with subrecumbent to suberect scales. Elytra subglobose, somewhat short, moderately wider than pronotum, with subrecumbent to suberect scales. Mesofemora with angled ventral face and metafemora with small sharp tooth; uncus of metatibiae in male moderately enlarged especially at apex and directed outwards.

Description (holotype). Length 3.46 mm. Body stout, integument black ( Fig. 19–20 ). Rostrum ( Fig. 34 ) 1.38 mm long (Rl/Rw 7.67; Rl/Pl 1.17), weakly curved in lateral view, cylindrical, of same width from base to apex. Antennae inserted at middle of rostrum; funicle 1 1/4 as long as scape, funicle 2 nearly as long as funicle 1, funicle 3 1/2 as long as funicle 2, funicle 4 and 5 globose. Eyes flat. Pronotum distinctly transverse (Pw/Pl 1.40), subconical, with rounded sides, moderately convex, with subrecumbent to suberect, moderately long, greyish, setalike scales. Scutellum with short yellowish scales. Elytra subglobose, somewhat short (El/Ew 1.13), moderately wider than pronotum (Ew/Pw 1.33), at base moderately directed forwards from interstria 5 to humeri, with somewhat rounded sides; interstriae covered with 3–4 irregular rows of suberect to erect, greyish, seta-like scales. Mesofemora with angled ventral face and metafemora with small sharp tooth ( Fig. 59–60 ); uncus of metatibiae 0.10 mm, in male enlarged especially at apex ( Fig. 41 ). Genitalia. Male: penis 1.40 mm, distinctly narrowed at middle; endophallus at base with flagellum enlarged and connected with broad, straight and stick-shaped sclerite ( Fig. 71 ).

Etymology. The collection site, Dongling, is the tomb of Nuerhachi, who was a great emperor in Chinese history. This species is named in his honor.

Remarks. This species, presently know only from a male, is closely related to C. distinctus by the general habitus and the shape of the rostrum. However, it differs slightly by the shape of the mesofemora with angled (and not smoothed) ventral face, and that of the uncus of the metatibiae in the male, which is shorter and narrower in basal half, and differs distinctly by the shape of the body of the penis, in which sides are distinctly narrowed at the middle, as well as the stick-shaped sclerite of the endophallus, which is shorter and broader at its apex.

Distribution. Known only from the type locality in northeastern China.

Figures

FIGURES13–24.Habitus of Cleopomiarus. 13. C. danfengensis ♀, dorsal; 14. C. danfengensis ♀, lateral; 15. C.distinctus ♂, dorsal; 16. C. distinctus ♂, lateral; 17. C. distinctus ♀, dorsal; 18. C. distinctus ♀, lateral; 19. C. nuerhachii ♂, dorsal; 20. C. nuerhachii ♂, lateral; 21. C. vestitus ♂, dorsal; 22. C. vestitus ♂, lateral; 23. C. vestitus ♀, dorsal; 24. C. vestitus ♀, lateral. Scale:1.00 mm.

FIGURES25–36.Rostrum of Cleopomiarus. 25. C. graminis ♂; 26. C. graminis ♀; 27. C. graminis ♀; 28.C. flavoscutellatus ♂; 29. C. flavoscutellatus ♀; 30. C. danfengensis ♂; 31. C. danfengensis ♀; 32. C. distinctus ♂; 33. C. distinctus ♀; 34. C. nuerhachii ♂; 35. C. vestitus ♂; 36.C. vestitus ♀. Scale:1.00 mm.

FIGURES59–66. Femoral tooth of Cleopomiarus. 59. C. nuerhachii ♂, mesofemora; 60.C. nuerhachii ♂, metafemora; 61.C. vestitus ♂, mesofemora; 62. C. vestitus ♂, metafemora; 63. C. vestitus ♂, mesofemora; 64. C. vestitus ♂, metafemora; 65. C. vestitus ♀, mesofemora; 66. C. vestitus ♀, metafemora.Scale:0.50 mm.

FIGURES 37–42. Uncus of male metatibiae of Cleopomiarus. 37. C. graminis; 38. C. flavoscutellatus; 39. C. danfengensis; 40. C. distinctus; 41. C. nuerhachii; 42. C. vestitus. Scale: 0.10 mm.

FIGURES 67–72. Penis of Cleopomiarus. 67. C. graminis; 68. C. flavoscutellatus; 69. C. danfengensis; 70. C. distinctus; 71. C.nuerhachii; 72. C. vestitus. Scale:0.50 mm.