大黑星龜金花蟲(Aspidomorpha miliaris (Fabricius)) (鞘翅目：金花蟲科)在不同溫度下取食六種不同旋花科(Convolvulaceae)植物的族群特性比較

Demographic characteristics of Aspidomorpha miliaris (Fabricius) (Coleoptera: Chrysomelidae) on six Convolvulaceae plants at different temperatures

鄭仲良(Chun-Liang Cheng) ； 蕭文鳳(Wen-Feng Hsiao)

《台灣昆蟲》 36卷1期 (2016/03) Pp. 25-32

https://doi.org/10.6662/TESFE.2016004

摘要

本研究主要探討於25˚C恆溫下，大黑星龜金花蟲(Aspidomorpha miliaris)取食蕹菜(Ipomoea aquatica)、甘藷(I. batatas)、槭葉牽牛(I. cairica)、紫花牽牛(I. purpurea)、紅花野牽牛(I. triloba)以及盒果藤(Operculina turpethum)六種不同旋花科植物的生活史，同時也研究本蟲於15、20、30˚C恆溫下取食甘藷葉片的生活史。結果顯示，取食上述六種植物的大黑星龜金花蟲發育時間依序為41.4 ± 1.9、40.6 ± 1.7、42.00 ± 1.5、41.0 ± 1.8、39.8 ± 0.8 及44.2 ±2.0天，成蟲壽命依序為123.7 ± 26.6、127.6 ± 19.5、121.8 ± 12.9、86.9 ± 9.8、111.1 ± 10.5及100.1 ± 8.5天。各處理之發育時間類似，但以取食紫花牽牛葉片的成蟲壽命最短。繁殖率(R_0)依序為98.90、145.87、132.20、50.57、75.60及44.97子代，內在增殖率(r)依序為0.0493、0.0600、0.0537、0.0429、0.0481及0.0343 d-1，終極增殖率(λ)依序為1.0505、1.0618、1.0552、1.0438、1.0493及1.0349 d-1，平均世代時間(T)依序為93.2、83.1、91.0、91.5、89.92 以及110.9天。所有的r值都小於0.1；r、R_0和λ值以取食甘藷葉片者最高而取食紫花牽牛葉片者為最低。大黑星龜金花蟲卵於15及20˚C恆溫環境下無法孵化，僅有30˚C才能孵化並正常發育，但其成蟲無法產下卵。30˚C下發育時間為35.7 (± 2.1)天，成蟲壽命為33.6 (± 6.1)天。

關鍵字

大黑星龜金花蟲 ； 生活史 ； 旋花科植物

並列摘要

The purpose of this study was to investigate the life cycle of the tortoise beetle, Aspidomorpha miliaris (Fabricius) on 6 Convolvulaceae host plants, including water convolvulus (WC, Ipomoea aquatic), sweet potato (SP, I. batatas), mile a minute vine (MM, I. cairica), common morning glory (CM, I. purpurea), littlebell (LB, I. triloba) and Foully Operculina (FO, Operculina turpethum). At 25˚C, the pre-adult development durations of A. miliaris on WC, SP, MM, CM, LB, and FO were 41.4 ± 1.9, 40.6 ± 1.7, 42.00 ± 1.5, 41.0 ± 1.8, 39.8 ± 0.8 and 44.2 ± 2.0 days, respectively. The adult longevity was 123.7 ± 26.6, 127.6 ± 19.5, 121.8 ± 12.9, 86.9 ± 9.8, 111.1 ± 10.5 and 100.1 ± 8.5 days, respectively. The net reproduction rate (R_0) was 98.90, 145.87, 132.20, 50.57, 75.60 and 44.97 offspring/individual. The intrinsic rate of population increase (r) was 0.0493, 0.0600, 0.0537, 0.0429, 0.0481 and 0.0343/d. The finite rate of population increase (λ) was 1.0505, 1.0618, 1.0552, 1.0438, 1.0493 and 1.0349 d^(-1), respectively. The mean generation time (T) was 93.20, 83.1, 91.0, 91.5, 89.9 and 110.9 days. All of the r values were lower than 0.1. Among the host-plants, the cohort that fed on sweet potato had the highest r, R_0 and λ; and the ones with the lowest were the insects that fed on common morning glory. At 15 and 20˚C the eggs did not hatch. The eggs that were reared at 30˚C were able to complete their development, however, the adults could not lay eggs. The development time of the tortoise beetle at 30˚C was 35.7 ± 2.1 d with an adult longevity of 33.6 ± 6.1 d.

並列關鍵字

Aspidomorpha miliaris ； life history ； Convolvulaceae species