The Songs of Bush Crickets (Tettigoniidae)

Author(s):  
Gillian Sales ◽  
David Pye
Keyword(s):  
1970 ◽  
Vol 52 (3) ◽  
pp. 495-505 ◽  
Author(s):  
W. J. BAILEY

1. A method has been devised by which the isolated tegmina of bush crickets can be actuated in such a manner as to simulate the insect's natural song. 2. The actuator was used to make a detailed analysis of the mechanics of sound production, with particular reference to the emission of the more or less pure tone at 15 kHz., characteristic of Homorocoryphus nitidulus. 3. Results involving damping and cautery indicated that the area of the right tegmen responsible for the radiation of this sound was the mirror frame, the vein enclosing the classical mirror membrane. 4. Further experiments involving transduced sound and a probe microphone led to the construction of sound radiation maps of the right tegmen which supported the above view. 5. The cantilever hypothesis, involving the mirror frame with the axis of the vestigial file as the cantilever's rotational axis, was considered in the light of the Homorocoryphus type. 6. The Homorocoryphus type differed from the Conocephalus type (on which the cantilever hypothesis was based) in that a simpler cantilever is formed in a line direct from the plectrum to the tip of the frame arm.


2014 ◽  
Vol 10 (1) ◽  
Author(s):  
Peter Kaňuch ◽  
Anna Sliacka ◽  
Anton Krištín

AbstractSome insect herbivores can regulate their nourishment intake by different feeding behaviour. This mechanism allows them to persist with utilising different food resources according to the composition of the vegetation within their habitats. Using a two-choice experiment, we analysed foraging behaviour in females of the tree-dwelling bush-cricket Barbitistes constrictus (Orthoptera), which originated from two different forest habitats, spruce and beech forest. We found that individuals from the spruce forest mainly foraged on needle tips, and thus they nibbled more needles per day than individuals from the beech forest (medians 106.0 vs. 42.5; p < 0.0001). However, when the contents of droppings were dissected, the volume of consumed spruce was similar in both groups of bush-crickets (median > 90%), which is explained by the different feeding techniques of bush-crickets from different habitats. We propose possible scenarios for bush-cricket feeding adaptations to the deleterious effects of the host plant chemical compounds serving as a plant defence against herbivores.


2016 ◽  
Vol 71 ◽  
pp. 61-72 ◽  
Author(s):  
Aurélie Lacoeuilhe ◽  
Nathalie Machon ◽  
Jean-François Julien ◽  
Christian Kerbiriou
Keyword(s):  

2008 ◽  
Vol 17 (2) ◽  
pp. 231-242 ◽  
Author(s):  
Jay Mccartney ◽  
Murray A. Potter ◽  
Alastair W. Robertson ◽  
Kim Telscher ◽  
Gerlind Lehmann ◽  
...  
Keyword(s):  

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