圓斑銅金花蟲（Chrysolina laeviguttata Chujo）（鞘翅目：金花蟲科）之室內繁殖與幼生期描述

Artificial Rearing and Immature Stages of Chrysolina laeviguttata Chujo (Coleoptera: Chrysomelidae)

羅珮蓁(Pei-Jen Luo) ； 李奇峯(Chi-Feng Lee) ； 黃文伯(Wenbe Hwang)

《台灣昆蟲》 41卷4期 (2021/11) Pp. 208-219

https://doi.org/10.6662/TESFE.202111_41(4).003

摘要

圓斑銅金花蟲（Chrysolina laeviguttata Chujo）目前已知棲息於台灣阿里山，以唇形科（Lamiaceae）蜜蜂花（Melissa axillaris（Benth.）Bakh. f.）葉片為食。本研究於2019～2020年在嘉義縣阿里山二萬平車站旁記錄並採集圓斑銅金花蟲之成蟲，攜回實驗室在光週期12L:12D 及恆溫17℃的條件下以蜜蜂花之葉片飼育，觀察卵與各齡期幼蟲之外部形態並記錄卵期與各齡期時間，外部形態方面測量卵之長寬、幼蟲頭殼寬、蛹之長寬、蛹體頭殼寬與蛹室長寬高與深度。於2019～2020年的野外調查顯示成蟲出沒主要時期為6～11月。卵橢圓形，顏色橙色至深紅色，表面具蜂巢狀菱紋；成蟲會將卵產於土壤中，單次可產下4.45 ± 3.07粒卵。幼蟲體色深棕色，共有四個齡期。蛹呈金黃色。從卵到羽化為成蟲平均需111.3 ± 0.9天，其中卵期為41.7 ± 0.4天，一齡至四齡幼蟲齡期依序為9.9 ± 0.1天、7.9 ± 0.3天、8.5 ± 0.2天、29.6 ± 1.4天，蛹期為15.0 ± 0.1天（平均值±標準誤差）。本研究之結果提供圓斑銅金花蟲之形態與生活史等基礎生物學資料，可為日後族群生物學研究及防治管理上之參考。

關鍵字

圓斑銅金花蟲 ； 生活史 ； 形態 ； 蜜蜂花

並列摘要

Chrysolina laeviguttata Chujo is found in Alishan, Taiwan, and feeds on the leaves of Melissa axillaris (Benth.) Bakh. f. (family: Lamiaceae). The adult samples of C. laeviguttata Chujo were collected from sites surrounding the Erwanping railway station located in Alishan Township, Chiayi County, from 2019 to 2020 and bred on the leaves of M. axillaris in an incubator at a constant temperature of 17°C under a 12-h light and 12-h dark photoperiod. We recorded the duration of all life stages from egg to adult. To study external morphology, we measured the length and width of the eggs and pupae; the head capsule width of the larvae and pupae; and the length, width, height, and depth of the pupal chambers. The survey results revealed that adults were mainly observed in the wild from June to November 2019-2020. The eggs were elliptical, were orange to deep red, and had honeycomb-like diamond patterns on the surface. Adults generally laid eggs in the soil and laid approximately 4.45 ± 3.07 eggs once. The larvae were dark brown and had four instars. The pupa was golden yellow. Approximately 111.3 ± 0.9 days were required for an egg to develop into an adult. The developmental duration (mean ± S.E.) was 41.7 ± 0.4 days for the eggs; 9.9 ± 0.1, 7.9 ± 0.3, 8.5 ± 0.2, and 29.6 ± 1.4 days for the first to fourth-instar larvae, respectively; and 15.0 ± 0.1 days for the pupa. The basic morphological and life history information provided in this study can serve as the basis for further population biology and pest management studies.

並列關鍵字

Chrysolina laeviguttata Chujo ； life history ； morphology ； Melissa axillaris (Benth.) Bakh. f.