珍灰蝶

珍灰蝶（學名：Zeltus amasa，英文俗名：）是灰蝶科的一種蝴蝶，是珍灰蝶屬（學名：Zeltus）的唯一一種，即是一個單型分類。廣泛分佈於東洋界及澳新界。

中小型灰蝶。雄蝶翅背面呈黑色及藍灰色，雌蝶褐色，兩性後翅都有兩條長尾突，尤其內側靠臀角的尾突極長，常成扭曲狀。一年多代，成蟲在部分地區幾乎全年可見。棲息於熱帶森林，喜歡在林緣處活動，飛行緩慢。幼蟲主要以大青屬植物為寄主。

形態
雄蝶的翅膀背面呈黑色，前翅基部及後翅大部分為藍灰色，後翅頂角具有1塊黑斑，黑斑發達個體呈方形，後翅有2條非常長的尾突，尾突白色並有灰色中線。翅膀腹面呈灰白色，前翅中室端部具1條赭黃色短橫帶，外側自前緣貫穿1條更長的諸黃色橫帶。後翅前緣近基部具有1枚小黑點，中室端部具有1條模糊的短橫帶，外中區貫穿1條諸黃色不規則橫帶，前半部連續，後半部斷裂為褐色短線，後緣及臀角處各具1枚節有金藍色鱗的黑點。

• *Z. a. gratidianus Fruhstorfer, 1912 分佈於印尼尼亞斯島
• *Z. a. masaya Takanami, 1984

參考
文獻
: 19世紀

• Hewitson, 1865, Illustrations of diurnal Lepidoptera. Lycaenidae Ill. diurn. Lep. Lycaenidae (2): pl. [https://archive.org/stream/illustrationsofd02hewi#page/n74/mode/1up 22], f. 19-20
• de Nicéville, 1890; The Butterflies of India, Burmah and Ceylon, a descriptive Handbook of all the known Species of rhopalocerous Lepidoptera inhabiting that Region, with Notices of allied Species occurring in the neighbouring Countries along the Border, with numerous Illustrations. Vol. 3 Butts India Burmah Ceylon 3: [https://archive.org/stream/butterfliesofind03mars#page/19/mode/1up 19], [https://archive.org/stream/butterfliesofind03mars#page/399/mode/1up 399]
• Druce, 1895, A Monograph of the Bornean Lycaenidae Proc. zool. Soc. Lond. 1895 (3): [https://archive.org/stream/proceedingsofgen95scie#page/606/mode/1up 606]

: 20世紀

• Wynter-Blyth, 1957. Butterflies of the Indian Region (1982 Reprint): 355
• Eliot, 1973, e higher classification of the Lycaenidae (Lepidoptera): a tentative Arrangement Bull. Br. Mus. nat. Hist. (Ent.) 28 (6): [https://archive.org/stream/bulletinofbritis28entolond#page/438/mode/1up 438]
• Lewis, 1974. Butterflies of the World: pl. 182, f. 17
• Smart, 1976. The Illustrated Encyclopedia of the Butterfly World Illust. Encyp. Butt. World.
• Corbet & Pendlebury, 1992. The butterflies of the Malay Peninsula. Fourth Edition revised by J. N. Eliot with plates by Bernard D'Abrera Butterflies Malay Peninsula (4th edn) : 321
• Chou, 1994. Monografia Rhopalocerorum Sinensium: 649

外部連結
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• [https://www.inaturalist.org/taxa/338514-Zeltus-amasa 珍灰蝶 (Zeltus amasa)] - iNaturalist