眉斑并脊天牛幼虫龄数及各龄特征
The larval instars and stadia of the longhorn beetle Glenea cantor
赖开平1,2**；陆 温2***；刘德星2；骆峥嵘2；高鹏宇1
点击：1945次 下载：0次
DOI：
作者单位：1广西化工研究院 南宁 530001；2广西大学 农学院 南宁 530005
中文关键词：眉斑并脊天牛, 幼虫龄数, 龄期， 幼虫特征
英文关键词：Glenea cantor, larval instars， stadia, larval characters
中文摘要：
测定头壳宽度室内观察结果表明，眉斑并脊天牛Glenea cantor（Fabricius）幼虫有4龄。1～4龄幼虫的头壳宽度分别为(0.66±0.20)，(1.45±0.20)，(2.22±0.23)，(3.26±0.29)mm。其龄数（Y）与幼虫头壳宽（X）度符合关系式 Y=0.2975+1.1606X。在25℃条件下，1～4龄幼虫的平均龄期分别为(5.25±0.60)，(4.94±0.58)，(5.98±0.63)d和(22.92±1.28)d，整个幼虫期为(39.09±2.14)d。还对眉斑并脊天牛各龄幼虫的形态特征作了描述。
英文摘要：By measuring the width of head capsules and rearing observation in laboratory, the results showed that there were 4 instars in larval stage of the kapok long-horned borer, Glenea cantor (Fabricius). The average idths of head capsule from 1 to 4 instars were (0.66±0.20), (1.45±0.20), (2.22±0.22) and (3.26±0.29) mm, respectively. The linear formula of larval instars (Y) and width of head capsule of larvae (X) was: Y=0.2975+1.1606X. At 25℃, the average stadia of the 1st instar to the 4th instar were (5.25±0.60), (4.94±0.58), (5.98±0.63)d and (22.92±1.28)d, respectively, and the total larval duration was (39.09±2.14)d. The larval morphology were also described.