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No.11 (1964/12) >

Title :イエカミキリ幼虫の令期
Title alternative :Notes on the larval instars of Stromatium longicorne Newman.
Authors :仲宗根, 平男
小島, 圭三
一樹, 洋彦
Authors alternative :Nakasone, Hirao
Kojima, Keizo
Ichiki, Hirohiko
Issue Date :Dec-1964
Abstract :For determination of the number of larval instars of Stromatium longicorne Newman, head width and head length were measured. Judging from the frequency distributions of these measurements we concluded that this longicorn beetle has five larval instars. But except the first larval instars, the difference among those from the second larval instars to the fifth larval instars is not obvious. Comparing with the first larval instars and the fifth larval instars, they are extremely different in size-the head size of those of the fifth larval instars is 10 to 12 times larger than that of the first larval instars. Although the three experimental formulae on larval growth of Dyer, Gaines-Empbell and Tokunaga did not show good results, Tokunaga's formula was comparatively adaptable. The growth of young larval instars is quite slow. It takes 2 to 3 years to complete its life-cycles.
Type Local :紀要論文
ISSN :0485-7828
Publisher :琉球大学農家政工学部
URI :http://hdl.handle.net/20.500.12000/19407
Citation :琉球大学農家政工学部学術報告 = The science bulletin of the Division of Agriculture, Home Economics & Engineering, University of the Ryukyus no.11 p.121 -127
Appears in Collections:No.11 (1964/12)

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