西北林学院学报2017，Vol.32Issue(3)：165-169,5.DOI:10.3969/j.issn.1001-7461.2017.03.31
松沫蝉若虫龄数及龄期划分
Division of Nymph Instars and Stadia of Aphrophora flavipes (Homoptera:Cercopidae)
摘要
Abstract
Aphrophora flavipes (Homoptera:Cercopidae) is a sucking mouthparts pest,is harmful to many pine species.The nymph of A.flavipes is not easily found because it hides in the excreted froth by itself.So it is very difficult to determine its instars using the method of observing its ecdysis by artificial feeding the nymph.In this study,957 nymphs and 116 adult were collected,the head carapace widths of nymph were measured to divide instars by frequency distribution of its head carapace widths.The results showed that the nymph of A.flavipes was divided into 5 instars,the mean values of the head carapace widths of 5 instars were 0.60±0.00 mm,0.83±0.01 mm,1.12±0.01 mm,1.61±0.01 mm,and 2.20±0.12 mm,respectively with significant differences.The Crosby index supported the conclusion of dividing 5 instars and the fitting result of growth model showed that the head carapace widths were very significantly correlated with its instars.The average stadia from 1st to 5th nymph based on the median value of samples were 3.55,13.49,9.12,16.22,and 18.93 d respectively and the whole stadia of nymph was 61.31 d.The result of dividing the A.flavipes nymph into 5 instars was dependably,it could provide a basis for distinguishing its instars in forestry quickly.关键词
松沫蝉/若虫/龄期/频次分布/头壳宽度Key words
Aphrophora flavipes/nymph/instar/frequency distribution/head carapace width分类
农业科技引用本文复制引用
邢礼国,王建军,栾庆书,王琴,云丽丽,梁立明,高明,吕琳丽..松沫蝉若虫龄数及龄期划分[J].西北林学院学报,2017,32(3):165-169,5.基金项目
辽宁省森林保护重点实验室项目(201120) （201120）
辽宁省科学事业公益研究基金(2015005011,2015002002). （2015005011,2015002002）
