...Axel Michelsen; Norbert Elsner ABSTRACT An array of eight microphones, all at a distance of 15 cm, was used to make simultaneous recordings of the sounds emitted by courting male acridid grasshoppers of the species Omocestus viridulus . In this species, the movement pattern for sound production...

...Ralf Heinrich; Berthold Hedwig; Norbert Elsner ABSTRACT When acetylcholine (ACh) and its agonists are injected into neuropile regions of the protocerebrum and the suboesophageal ganglion of male and female grasshoppers of the species Omocestus viridulus (L.), they elicit stridulation in a pattern...

...W.-G. Ocker; B. Hedwig; N. Elsner ABSTRACT The influence of neurotransmitters and neuroactive substances on stridulatory behaviour was analysed in two species of acridid grasshoppers ( Omocestus viridulus and Chorthippus mollis ). Acetylcholine, octopamine, γ-aminobutyric acid and glutamate were...