Cleopomiarus vestitus (Roelofs)

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 : 344-345

Cleopomiarus vestitus (Roelofs)

Miarus vestitus Roelofs, 1875: 150 .

Cleopomiarus vestitus (Roelofs) : Caldara & Legalov, 2016: 10. Miarus minimus Morimoto, 1959: 194 .

Material examined. CHINA: Inner Mongolia: Abahanaer Banner ( Xilinhaote ) (43°56′N; 116°05′E, 1375m), 21- VII-1964, Serratula sp., leg Hongchang Li (37M25F); Hinggan League Keerqinqian Banner (46°04′N; 121°57′E, 308m), 8-VIII-1983, leg Fucheng Ren(2F) ; same data, 9-VIII-1983, leg Wulita (1F) ; same data, 12-VIII-1983, leg Baoyin (1F); Hinggan League Keerqinzhong Banner (45°03′N; 121°28′E, 254m), 4-VIII-1983, leg Enhe (1F) ; same data, 23-VII-1983, leg Nengnaizhabu (1F); HulunbeierDaur Autonomous Banner of Morin Dawa (48°28′N; 124°31′E, 184), 23-VII-1970 (1M2F) . Hebei: Zhuoluxian Xiaowutai Shanjiankou (40°01′N; 115°03′E, 1200m), 22-VIII-2 0 0 5, leg Junhao Huang (1F) . Beijing: Changping Shisanling (40°15′N; 116°13′E, 106m), 29-VIII-1958 (1M); HaidianWofo Temple (40°0′N; 116°12′E, 193m), 4-IX-1964, leg Tengqiao Jiang (1M); Haidian Xiangshan (39°59′N; 116°11′E, 570m), 23-VIII-1961, leg Shuyong Wang (25M16F); Haidian Xibeiwang (40°02′N; 116°15′E, 49m), 4-VIII-1958 (1F); Yanqing Badaling Sanpucun (40°19′N; 116°02′E, 600m), 22-VIII-1964, leg Tiesheng Li (7M6F) . Heilongjiang: Aihui Xigou (49°51′N; 127°13′E, 154m), 22-VII-1963, leg Hongxing Li (1F); Mishan Errenban (45°17′N; 131°43′E, 140m), 11-VIII-1970 (1F); Ningan Jingpo Lake (43°51′N; 128°54′E, 380m), 8-VIII- 1963, leg Hongxing Li (2M3F) . Sichuan: Wushan Liziping (31°12′N; 110°05′E, 1850m), 4-VIII-1993, leg Xingke Yang (2M) . Shaanxi: Ankang Ningshaan Guanghuojie Yuanyanggou (33°04′N; 108°04′E, 1264m), 27-VII-2014, leg Chunyan Jiang (1M).

Type locality. Japan.

Diagnosis. Body length 2.10–3.20 mm. Dorsal vestiture nearly unicolorous, greyish and light brown. Rostrum moderately long in male, slightly longer in female, cylindrical, of same width from base to apex, distinctly curved in lateral view. Pronotum distinctly transverse, with partly raised scales. Elytra subglobose, moderately short, moderately wider than pronotum. Mesofemora with minute sharp tooth, metafemora with a little more distinct sharp tooth; uncus of metatibiae in male distinctly enlarged from base to apex.

Redescription. Length 2.10–3.20 mm. Body slender, integument black ( Fig. 21–24 ). Rostrum ( Fig. 35–36 ) moderately long in male, usually slightly longer in female (Rl/Rw male 6.00–6.92, female 6.15–7.50; Rl/Pl male 0.90–1.00, female 0.96–1.02), cylindrical, of same width from base to apex, distinctly curved in lateral view in male, slightly more curved in female. Antennae inserted at middle of rostrum in male, and between middle and basal third of rostrum in female. Eyes flat. Pronotum distinctly transverse (Pw/Pl male 1.38–1.43), subconical, with rounded sides, moderately convex, with subrecumbent to erect, moderately long, whitish grey and light brown, seta-like scales. Scutellum with short, yellowish scales. Elytra subglobose, moderately short (El/Ew1.10–1.16), moderately wider than pronotum (Ew/Pw 1.24–1.29), at base moderately directed forwards from interstria 5 to humeri, with moderately rounded sides; interstriae covered with 3–4 irregular rows of subrecumbent to suberect, whitish grey and light brown, seta-like scales. Mesofemora with minute sharp tooth, metafemora with a little more distinct sharp tooth ( Fig. 61–66 ); uncus of metatibiae 0.06–0.08 mm, in male distinctly enlarged from base to apex ( Fig. 42 ). Genitalia. Male: penis 1.10–1.20 mm, gradually and weakly narrowed from base to apex; endophallus at base with flagellum enlarged and connected with straight, short, broad, stick-shaped sclerite ( Fig. 72 ). Female: spermatheca 0.17–0.18 mm, hook-shaped, body weakly enlarged, gradually narrowed from base to apex, collum moderately long, as long as ramus ( Fig. 77 ). Spiculum ventrale 0.65–0.70 mm, with subparallel arms ( Fig. 82 ).

Remarks and comparative notes. This species is distinguished easily from the others mainly by the shape of the rostrum, which is thin, distinctly curved, of the same width from base to apex and only slightly sexually dimorphic. The sclerite of the endophallus is distinctly shorter than in other species. The spermatheca is hookshaped and the body is not sinuate. As written on some labels, many specimens were collected mating on flowers of Serratula sp. ( Asteraceae ) and about 80% of the flowers were with C. vestitus . However, it is highly probable that Serratula is not the host plant of C. vestitus , since up to now no species of Cleopomiarus were reported to live on plants of families other than Campanulaceae . On the contrary it is well known that some species have been collected in numbers on Fragaria or Ranunculus spp. when Campanulaceae were not yet blooming ( Caldara 2001, 2007).

Distribution. Japan (Honshū Island), Korea, Mongolia, Russia (South of eastern Siberia, Far East). Already known from Beijing and Heilongjiang ( Caldara & Legalov 2016), new for several other provinces of northern and northeastern China as well as southwestern 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.

FIGURES73–82.Spermatheca andspiculumventrale of Cleopomiarus. Spermatheca:73.C.graminis;74.C.flavoscutellatus; 75. C. danfengensis; 76. C. distinctus; 77. C. vestitus. Scale: 0.10 mm. Spiculum ventrale: 78. C. graminis; 79. C. flavoscutellatus; 80. C.danfengensis; 81. C.distinctus; 82. C.vestitus. Scale:0.50 mm.