Epuraea (Epuraea) biguttata (Thunberg, 1784)

ナミヒラタケシキスイ

Silpha biguttata Thunberg 1784: 9. Type locality: Sweden.

Epuraea biguttata: Grouvelle 1913b: 126 [catalogue]; Horion 1960: 106 [note]. 

Epuraea (Epuraea) biguttata: Kirejtshuk 1992: 156, pl. 76, figs. 15–19 [in key, figure]; Audisio 1993: 359 [redescription, figures]; Jelínek & Audisio 2007: 460 [catalogue]: S.-T. Hisamatsu 23, figs. 1F, 4E, F, 10 [redescription, figures].

Nitidula unicolor Olivier 1790: 17. Synonymized by Kurochkin & Kirejtshuk (2006: 396) with Epuraea biguttata Thunberg, 1784.

Epuraea  unicolor: Grouvelle 1913b: 126 [catalogue];  Horion 1960:  107  [note]; Spornraft 1967:  63, pl.  9, fig. 27 [in key, figures]; Audisio 1980: 146, pl. 103, figs. C–E [in key, figures]; 1993: 356 [redescription, figures].

Epuraea  (Epuraea)  unicolor:  Kirejtshuk  1992:  155,  pl.  76,  figs.  17–19  [in  key,  figure];  Jelínek  &  Audisio  2007:  463 [catalogue].

Nitidula obsoleta Fabricius 1792: 256 (parts), not Nitidula obsoleta Illiger 1798: 384 (parts), not Nitidula obsoleta Herbst 1793: 240. Synonymized by Grouvelle (1913a: 394) with Nitidula unicolor Olivier, 1790.

Epuraea obsoleta: Erichson 1843: 270; 1845: 148 [redescription]; Reitter 1872: 16, Taf. I, Fig. 15 [redescription, figure]; 1973: 19 [in key]; Ganglbauer 1899: 481 [redescription]; Reitter 1919: 69 [in key].

Nitidula aestiva Kugelann 1792: 511, not Nitidula aestiva Fabricius, 1775, not Epuraea aestiva (Linnaeus, 1758).

Epuraea subangulata Motschulsky 1860: 127. Synonymized by Reitter (1879: 210) with Nitidula obsoleta Fabricius, 1792.

Epuraea trapezicollis Motschulsky 1860: 127. Synonymized by Reitter (1879: 210) with Nitidula obsoleta Fabricius, 1792.

Epuraea heeri Tournier 1872: 439. Synonymized by Grouvelle (1913b: 126) with Nitidula unicolor Olivier, 1790.

Epuraea pellax Reitter, 1873: 33. Synonymized by Grouvelle (1913a: 394) with Nitidula unicolor Olivier, 1790.

Epuraea pellax: Hayashi 1978: 13 [description of larva, figures]; Hisamatsu 1985: 183, pl. 29, fig. 11 [note, photo]; Jelínek & Audisio 2007: 461 [catalogue].

Epuraea maculata Dalla Torre 1879: 87. Synonymized by Grouvelle (1913b: 126) with Nitidula unicolor Olivier, 1790.

Epuraea marginata Dalla Torre 1879: 87. Synonymized by Grouvelle (1913b: 126) with Nitidula unicolor Olivier, 1790.

Epuraea x-rubrum Sahlberg 1911: 42. Synonymized by Horion (1960) with Nitidula unicolor Olivier, 1790.

【形態 / Diagnosis】

• 体長1.47-2.24mm．背面は密に点刻され，点刻間は滑沢．♂の中脛節内縁は少なからず湾曲し，先端付近に小突起をもつ．

【生態 / Bionomy】

• 柑橘の害虫として知られる。その他、森林内でも果物を用いたトラップでも採集される。

【分布 / Distribution】

• Palaearctic Region: Europe, Turkey, Cyprus, Kazakhstan, Mongolia, West and East Siberia, Russian Far East, Japan.

【備考 / Notes】

• Epuraea (E.) unicolor とE. (E.) biguttata とのシノニム関係は，形態面でもinternal sac 内の骨片形状ほかから区別されるため，再検討が必要と思われる．

成虫写真 / Photos, adults

生態写真/Photos

分布地図/Distribution maps

【参考文献 / References】

• 長浜正照・河野通昭（1972）ポンカンの外観阻害要因について（第1報）訪花害虫，特にケシキスイ類の被害について．九州病害虫研究会報，18: 63-65.

【分布図作成に用いた文献 / References used for the distribution map】

• Jelinek, J. & Audisio, P. (2007) Family Nitidulidae. Pp. 459–491. In: Löbl, I. & Smetana, A. (eds): Catalogue of Palaearctic Coleoptera. Vol. 4: Elateroidea – Derodontoidea – Bostrichoidea – Lymexyloidea – Cleroidea – Cucujoidea. Apollo Books, Stenstrup, 935 pp.

• Hisamatsu, S.-T. (2016) A revision of Japanese Epuraeinae (Coleoptera, Nitidulidae). Part I. Epuraea subgenera: Dadopora Thomson, Epuraea Erichson, and Epuraeanella Crotch. Zootaxa, 4080(1): 1-100.

• 伊藤直哉・久松定智（2019）奄美大島のケシキスイ相とその分布傾向．Sayabane, N.S., (35): 56-70.

• 城戸克弥（2017）福岡県のヒラタムシ上科．KORASANA，(86): 41-126.

• 大桃定洋・佐藤光一（2003）栃木県自然環境基礎調査 とちぎの昆虫 II. 栃木県，248-255.

• 斉藤明子・尾崎煙雄・宮野伸也・鈴木勝・斉藤修・村川功雄・倉西良一（2017）東京大学千葉演習林（千葉県南部清澄山系）の昆虫相．千葉県立中央博物館自然史研究報告特別号，(10): 61-232, vii-xvi (pls. 1-10).

• 斎藤修司（2017）福島県のヒゲボソケシキスイ科およびケシキスイ科の現状, InsecTOHOKU, 41: 2-15．

【分布図作成に用いた標本 / Materials used for the distribution map】

• YHCC = Yasuhiko Hayashi Coleoptera Collection