幻紫斑(ban)蝶是鱗(lin)翅目斑(ban)蝶科(ke)的一(yi)種昆蟲。雄蝶翅暗褐色(se)(se),基部較深,向端(duan)(duan)部漸淺(qian),藍(lan)色(se)(se)光(guang)(guang)澤弱,前(qian)(qian)翅后(hou)緣(yuan)(yuan)向外(wai)凸呈闊(kuo)弧形,中(zhong)(zhong)室(shi)(shi)(shi)端(duan)(duan)部上和(he)下均(jun)有1個(ge)白(bai)(bai)(bai)(bai)點(dian),近頂端(duan)(duan)1個(ge)不(bu)(bu)明顯,外(wai)緣(yuan)(yuan)白(bai)(bai)(bai)(bai)點(dian)列不(bu)(bu)明顯,亞(ya)端(duan)(duan)部有5一(yi)6個(ge)白(bai)(bai)(bai)(bai)點(dian),在CU2室(shi)(shi)(shi)中(zhong)(zhong)部有1個(ge)短的性標斑(ban);后(hou)翅前(qian)(qian)緣(yuan)(yuan)灰(hui)(hui)白(bai)(bai)(bai)(bai)色(se)(se),外(wai)緣(yuan)(yuan)和(he)亞(ya)外(wai)緣(yuan)(yuan)白(bai)(bai)(bai)(bai)點(dian)列不(bu)(bu)顯。翅反(fan)面棕色(se)(se);前(qian)(qian)翅后(hou)緣(yuan)(yuan)灰(hui)(hui)白(bai)(bai)(bai)(bai)色(se)(se)有光(guang)(guang)澤,中(zhong)(zhong)室(shi)(shi)(shi)內和(he)外(wai)各有1個(ge)白(bai)(bai)(bai)(bai)點(dian);后(hou)翅外(wai)緣(yuan)(yuan)和(he)亞(ya)外(wai)緣(yuan)(yuan)各有1列白(bai)(bai)(bai)(bai)斑(ban),中(zhong)(zhong)室(shi)(shi)(shi)內有1個(ge)白(bai)(bai)(bai)(bai)點(dian),中(zhong)(zhong)室(shi)(shi)(shi)端(duan)(duan)部外(wai)附近有白(bai)(bai)(bai)(bai)點(dian)。
幻(huan)紫(zi)斑蝶是偏南方種(zhong)類,它的翅面在陽光(guang)下會發出(chu)紫(zi)色熒光(guang),這在美學上具有很(hen)高價值。該蝶可取食夾竹桃Neirum idnicum和小葉榕Ficus microphylla。
國(guo)內分(fen)布(bu):廣東、廣西(xi)、海南、云南。
國外(wai)分布:印度(du)、尼泊爾、錫會(hui)、緬(mian)甸、馬(ma)來西亞、印度(du)尼西亞、菲律賓(bin)、斯里蘭(lan)卡等。
2022年6月,西藏自治區吉隆(long)縣及周圍地區發(fa)現幻紫(zi)斑(ban)蝶指名亞種(zhong)。
雄(xiong)蝶翅(chi)暗褐色,基部(bu)較深,向(xiang)端(duan)部(bu)漸淺(qian),藍色光澤(ze)(ze)弱,前翅(chi)后(hou)緣(yuan)(yuan)(yuan)向(xiang)外(wai)(wai)(wai)凸呈(cheng)闊弧(hu)形,中室(shi)(shi)端(duan)部(bu)上和(he)下均有(you)1個白(bai)(bai)(bai)點(dian),近頂端(duan)1個不明(ming)顯,外(wai)(wai)(wai)緣(yuan)(yuan)(yuan)白(bai)(bai)(bai)點(dian)列不明(ming)顯,亞(ya)端(duan)部(bu)有(you)5一6個白(bai)(bai)(bai)點(dian),在CU2室(shi)(shi)中部(bu)有(you)1個短的性標斑;后(hou)翅(chi)前緣(yuan)(yuan)(yuan)灰(hui)白(bai)(bai)(bai)色,外(wai)(wai)(wai)緣(yuan)(yuan)(yuan)和(he)亞(ya)外(wai)(wai)(wai)緣(yuan)(yuan)(yuan)白(bai)(bai)(bai)點(dian)列不顯。翅(chi)反(fan)面棕色;前翅(chi)后(hou)緣(yuan)(yuan)(yuan)灰(hui)白(bai)(bai)(bai)色有(you)光澤(ze)(ze),中室(shi)(shi)內和(he)外(wai)(wai)(wai)各(ge)有(you)1個白(bai)(bai)(bai)點(dian);后(hou)翅(chi)外(wai)(wai)(wai)緣(yuan)(yuan)(yuan)和(he)亞(ya)外(wai)(wai)(wai)緣(yuan)(yuan)(yuan)各(ge)有(you)1列白(bai)(bai)(bai)斑,中室(shi)(shi)內有(you)1個白(bai)(bai)(bai)點(dian),中室(shi)(shi)端(duan)部(bu)外(wai)(wai)(wai)附近有(you)白(bai)(bai)(bai)點(dian)。
雄雌色彩斑紋(wen)基(ji)本(ben)相(xiang)似,但(dan)雌蝶前(qian)翅后(hou)緣平直(zhi),無(wu)性標斑。
幻(huan)紫斑(ban)蝶喜產卵于夾竹桃和小葉榕的葉面上,散產。
初孵幼(you)(you)蟲從(cong)卵殼(ke)出來后,先取(qu)食(shi)(shi)卵殼(ke),然后再取(qu)食(shi)(shi)夾(jia)竹桃或小(xiao)葉榕嫩(nen)葉。幼(you)(you)蟲一般從(cong)葉片邊緣開始取(qu)食(shi)(shi),咬(yao)食(shi)(shi)成一個小(xiao)圓孔。初孵幼(you)(you)蟲有(you)時(shi)會取(qu)食(shi)(shi)鄰處(chu)的(de)卵。幼(you)(you)蟲集體飼養有(you)自相(xiang)殘(can)殺現象。
蛹(yong)在羽化前(qian)變為淡(dan)黑色(se),半個小(xiao)時內可以羽出。成蟲羽出后(hou)約(yue)1一(yi)2個小(xiao)時才展翅完全,此(ci)時活動(dong)能(neng)力很強,可喂10%的蜜糖水(shui)補充(chong)營養。
幻(huan)紫斑蝶是以成(cheng)蟲(chong)越(yue)冬(dong)。在(zai)廣州地區,成(cheng)蟲(chong)在(zai)3月下(xia)旬(xun)至4月上(shang)旬(xun)開(kai)始(shi)活動,在(zai)6一10月份時歷期為23一30天,到11月下(xia)旬(xun)成(cheng)蟲(chong)不產卵,進人越(yue)冬(dong)狀態。每年(nian)6一8個世代。
寄主(zhu):夾竹桃Neirum idnicum和小葉榕(rong)Ficus microphylla