Cleopomiarus graminis (Gyllenhal)

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 : 339-340

publication ID

https://doi.org/ 10.11646/zootaxa.4378.3.3

publication LSID

lsid:zoobank.org:pub:FCCFFC02-3983-422D-BB7E-98B3903E342E

DOI

https://doi.org/10.5281/zenodo.5959838

persistent identifier

https://treatment.plazi.org/id/03900F29-FF9F-6024-5FC7-FF02FDA048E5

treatment provided by

Plazi

scientific name

Cleopomiarus graminis (Gyllenhal)
status

 

Cleopomiarus graminis (Gyllenhal) View in CoL View at ENA

Rhynchaenus graminis Gyllenhal, 1813: 210 View in CoL (nomen protectum). Cleopomiarus graminis (Gyllenhal) View in CoL . Caldara & Legalov, 2016: 12. Curculio ellipticus Herbst, 1795: 171 View in CoL (nomen oblitum). Rhynchaenus cinerascens Gravenhorst, 1807: 208 View in CoL (nomen oblitum). Miarus jakowlewi Faust, 1895: 104 View in CoL .

Miarus fuscopubens Reitter, 1907: 43 View in CoL .

Miarus graminis subuniseriatus Reitter, 1907: 45 View in CoL .

Miarus scutellaris mequignoni Hoffmann, 1939: 79 View in CoL . Miarus dulcinasutus Kangas, 1976: 79 .

Miarus graminoides Kangas, 1976: 80 .

Material examined. CHINA: Xinjiang: Habahe Baihaba Canyon (48°01′N; 85°59′E, 1314m), 2-VII-2014, leg Chunyan Jiang (1M) (specimen with single row of elytral scales) GoogleMaps ; same data (4M3F). Liaoning: Anshan Qianshan (40°32′N; 123°01′E, 254m), 22-VII-2002, leg Yong Zhang (1M) GoogleMaps ; same data, leg Siqin Ge (1M1F); Fengcheng Tongyuanpu (40°46′N; 123°55′E, 186m), 1-VI-1963, leg Hongxing Li (3F) GoogleMaps . Jilin: Antu Dahuanggou (42°57′N; 128°40′E, 640m), 16-VIII-1963, leg Hongxing Li (1M3F) GoogleMaps . Heilongjiang: Ningan Jingpo Lake (43°51′N; 128°54′E, 380m), 7-VIII-1963, leg Hongxing Li (2F), 8-VIII-1963, leg Hongxing Li (3M) GoogleMaps . Neimenggu: Xinganmeng Keerqinyouyiqianqi (46°04′N; 121°58′E), 28-VII-1984, leg Qier Min (1M). GoogleMaps

Type locality. Sweden.

Diagnosis. Body length 1.9–3.3 mm. Dorsal vestiture unicolorous, whitish to light brown. Rostrum moderately long in male, longer in female, nearly of same width from base to apex, weakly curved in lateral view in male, nearly straight to weakly curved in female. Pronotum distinctly transverse, with partly raised scales. Elytra subglobose, moderately long, weakly wider than pronotum; interstriae covered with recumbent to suberect scales. Mesofemora with minute sharp tooth and metafemora with distinct sharp tooth; uncus of metatibiae in male moderately enlarged, pointed at apex.

Description. Length 1.9–3.3 mm. Body stout, Integument black ( Fig. 1–4 View FIGURES 1–12 ). Rostrum ( Fig. 25–26 View FIGURES25–36 ), long in male, moderately longer in female (Rl/Rw male 6.00–6.67, female 6.05–7.39; Rl/Pl male 0.94–1.09, female 0.93– 1.20), nearly of same width from base to apex, weakly curved in lateral view in male, nearly straight to weakly curved in female. Antennae inserted at middle of rostrum in male, between middle and basal third of rostrum in female. Pronotum (Pw/Pl 1.36–1.48), subconical, with rounded sides, moderately convex, with recumbent to suberect, moderately long, white to light brown, seta-like scales. Scutellum with short, white scales. Elytra subglobose, short (El/Ew 1.10–1.25), weakly wider than pronotum (Ew/Pw 1.16–1.36), at base moderately directed forwards from interstria 5 to humeri, with somewhat rounded sides; interstriae covered with 2–4 irregular rows of recumbent to suberect, whitish to light brown, seta-like scales. Mesofemora with minute sharp tooth, metafemora with distinct sharp tooth ( Fig. 43–46 View FIGURES 43–50 ), uncus of metatibiae 0.06–0.10 mm, in male moderately enlarged, pointed at apex ( Fig. 37 View FIGURES 37–42 ). Genitalia. Male: penis 1.16–1.45 mm, somewhat narrowed at middle; endophallus at base with flagellum enlarged and connected with straight, long and stick-shaped sclerite ( Fig. 67 View FIGURES 67–72 ). Female: spermatheca 0.18–0.24 mm, body narrow, gradually narrowed in apical third, weakly sinuate, collum straight, long, 2/3 as long as body, at base weakly enlarged, ramus very short ( Fig. 73 View FIGURES73–82 ); spiculum ventrale with arms slightly divergent from base to apex ( Fig. 78 View FIGURES73–82 ).

Remarks and comparative notes. For detailed data on synonymies see Caldara & Legalov (2016). This is an apparently variable species with a wide distribution. The two most variable characters are the colour of the dorsal vestiture, which varies from whitish grey to light brown, and the density of the elytral scales sometimes moderately sparse, sometimes completely covering the integument. The rostrum varies somewhat in length and curvature, especially in the female. It is clear that it would be very interesting to perform a detailed molecular study of various populations. Cleopomiarus graminis differs from the other Chinese species by the shape of the uncus of metatibiae in male, the shape of the rostra and that of median lobe and spermatheca.

We identified temporarily as C. graminis the only male specimen ( Fig. 5–6 View FIGURES 1–12 ) collected at Habahe Baihaba Canyon (Xinjiang) ( Fig. 86 View FIGURES 83–88 ), characterized mainly by a single row of white elytral scales, which makes this specimen distinct from the other Chinese specimens of C. graminis (see fig. 1–4 vs Fig. 5–6 View FIGURES 1–12 ). However it is know that some specimens from western Palaearctic countries have similar elytral vestiture (Caldara & Legalov 2 016).

Distribution: Previously reported from Europe, West and Central Siberia ( Caldara & Legalov 2016). New record from China (northern regions).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Curculionidae

Genus

Cleopomiarus

Loc

Cleopomiarus graminis (Gyllenhal)

Jiang, Chunyan, Caldara, Roberto & Zhang, Runzhi 2018
2018
Loc

Rhynchaenus graminis

Gyllenhal, 1813 : 210
Caldara & Legalov, 2016 : 12
Herbst, 1795 : 171
Gravenhorst, 1807 : 208
Faust, 1895 : 104
Loc

Miarus fuscopubens

Reitter, 1907 : 43
Loc

Miarus graminis subuniseriatus

Reitter, 1907 : 45
Loc

Miarus scutellaris mequignoni

Hoffmann, 1939 : 79
Kangas, 1976 : 79
Loc

Miarus graminoides

Kangas, 1976 : 80
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