Function of the Scent from the Pigmy Mole Cricket, Tridactylus japonicus De HAAN : Orthoptera : Tridactylidae

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概要

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• When pigmy mole crickets, Tridactylus japonicus DE HAAN, were grasped they often discharged a characteristic scent. It was believed this scent to be a defensive weapon against predators and some experiments were performed to confirm this idea. Two groups of crickets, one which had discharged the scent when held by human fingers prior to the experiment, and the other which was not held and had not discharged the odor were respectively introduced into petri dishes that had previously confined one Lacosid spider, Pardosa spp. The death rate of the scent-discharging crickets after 24 hr was 65% (N=20), while in the other group the death rate was 26.3% (N=19). A significant difference between them was found at the 5% level. Also, in another experiment, it was found that filter paper soaked with the odoriferous cricket's secretion repelled ants, Tetramorium caespilum L. These findings indicated that the scent emitted by the crickets acted as their defense against predators. This is the first report of a chemical defense utilized by Tridactyloid insects.

• 日本応用動物昆虫学会の論文
• 1988-08-25

著者

• Ichinose T

  Tokyo Univ. Agriculture And Technology Tokyo Jpn

• Ichinose Taira

  Laboratory Of Applied Entomology Department Of Plant Protection Faculty Of Agriculture Tokyo Univers

• MORIYA Norimasa

  Laboratory of Applied Entomology, Department of Plant Protection, Faculty of Agriculture, Tokyo Univ

• Moriya N

  Tokyo Univ. Agriculture And Technology Tokyo Jpn

• Moriya Norimasa

  Laboratory Of Applied Entomology Faculty Of Agriculture Tokyo University Of Agriculture And Technolo

関連論文

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• The Comparative Morphology of the Caudal Secretory Hypodermis of Three Species of Cockroaches, Periplaneta fuliginosa SERV., P. japonica KARNY, and P. americana L. (Orthoptera : Blattidae), with Regard to Their Development and Rearing Densities
• Comparison of Esterase Zymograms among Genera and Species of Japanese Plusiinae : Lepidoptera : Noctuidae
• Function of the Scent from the Pigmy Mole Cricket, Tridactylus japonicus De HAAN : Orthoptera : Tridactylidae
• Morphology and Histology of the Scent Glands of the Pigmy Mole Cricket, Tridactylus japonicus DE HAAN (Orthoptera : Tridactylidae)

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