@article {53101, title = {Stridulation by the cockroach Nauphoeta cinerea during courtship behaviour}, journal = {Journal of Insect Physiology}, volume = {13}, year = {1967}, month = {Jan-04-1967}, pages = {579 - 586}, abstract = {

Males of Nauphoeta cinerea stridulate when they court non-receptive females. The stridulating apparatus consists of parallel striae on the lateroposterior margins of the pronotum and on the proximal region of the costal veins of the tegmina. The sound is produced by posterior, anterior, and side-to-side displacement of the pronotum rubbing against the costal veins. Phrases usually consist of two to six complex pulse trains followed by a long series of disyllabic chirps, and they are linked to form sentences lasting as long as 3 min. The song consists of a broad band of frequencies up to about 15 kHz with intensities of 55 to 65 dB, re 0 dB = 0\·0002 dyn/cm2, at 1 cm.

}, issn = {00221910}, doi = {10.1016/0022-1910(67)90069-8}, url = {http://linkinghub.elsevier.com/retrieve/pii/0022191067900698}, author = {Hartman, H.Bernard and Roth, Louis M.} } @article {52757, title = {Effects of a tachinid parasitoid, Ormia ochracea, on the behaviour and reproduction of its male and female field cricket hosts (Gryllus spp)}, journal = {Journal of Insect Physiology}, volume = {41}, year = {1995}, month = {Jan-03-1995}, pages = {269 - 277}, abstract = {

The larvae of the tachinid parasitoid fly, Ormia ochracea, develop within the body of their host, the field crickets Gryllus integer and Gryllus rubens. The fly will also develop within the cricket Gryllus bimaculatus, which is not the natural host. For the first 3 days after entering a cricket, the first instar larvae grew inside the large thoracic muscles, but did little damage to the muscles during this time. They then migrated into the abdomen where they moulted, attached themselves to the body wall and fed primarily on the host\&$\#$39;s muscle and fat body, sparing the digestive system and CNS. Usually the host\&$\#$39;s reproductive system was only partially damaged. After the larvae entered the abdominal cavity, the host\&$\#$39;s mating, egg-laying and fighting ability (males) declined. This decline probably occurred due to the tissue damage wrought by the parasitoid. Less energy-demanding behaviours, such as grooming and feeding, were not affected during the entire period of infestation. During the first instar (when the parasitoid is embedded in the host\&$\#$39;s muscle), male crickets showed an increased tendency to attack other males. This increased incidence of agonistic behaviour occurred before the parasitoid caused significant tissue damage to the host and must therefore have been due to some other effect of the parasitoid.

}, issn = {00221910}, doi = {10.1016/0022-1910(94)00095-X}, url = {http://linkinghub.elsevier.com/retrieve/pii/002219109400095X}, author = {Adamo, S.A. and Daniel Robert} } @article {47589, title = {Processing of vibratory and acoustic signals by ventral cord neurones in the cricket Gryllus campestris}, journal = {Journal of Insect Physiology}, volume = {30}, year = {1984}, month = {Jan-01-1984}, pages = {575 - 585}, abstract = {

The responses of single vibratory receptors and ascending ventral cord interneurones were studied extracellularly in Gryllus campestris L. The physiology of the vibration receptors resembled those found in tettigoniids and locusts. The frequency responses of the subgenual receptors provide two possible cues for central frequency discrimination: differences in mean tuning between groups of receptors in the different leg pairs and a range of receptors tuned to different frequencies within one subgenual organ.

Most of the ascending vibratory interneurones were highly sensitive in either the low or high frequency range. Broadbanded neurones were less sensitive. The characteristic sensitivity peaks of these units are due mainly to receptor inputs from a particular leg pair, although most central neurones receive inputs from all 6 legs. Only one neurone type, TN1 received excitatory inputs from both auditory and vibratory receptors; its responses were greatly enhanced by the simultaneous presentation of both stimulus modes. The responses to sound stimuli of AN2, on the other hand, were inhibited by vibration. No other auditory interneurones investigated were influenced by inputs from vibration receptors. Central processing of vibratory information in the cricket is compared with that of tettigoniids and locusts.

}, keywords = {central coprocessing, cricket, interneurone, sound, vibration}, issn = {00221910}, doi = {10.1016/0022-1910(84)90086-6}, url = {http://linkinghub.elsevier.com/retrieve/pii/0022191084900866}, author = {K{\"u}hne, Roland and Silver, Susan and Lewis, Brian} } @article {17335, title = {Brain regions for sound processing and song release in a small grasshopper}, journal = {Journal of Insect Physiology}, year = {2017}, abstract = {

We investigated brain regions \– mostly neuropils - that process auditory information relevant for the initiation of response songs of female grasshoppers Chorthippus biguttulus during bidirectional intraspecific acoustic communication. Male-female acoustic duets in the species Ch. biguttulus require the perception of sounds, their recognition as a species- and gender-specific signal and the initiation of commands that activate thoracic pattern generating circuits to drive the sound-producing stridulatory movements of the hind legs. To study sensory-to-motor processing during acoustic communication we used multielectrodes that allowed simultaneous recordings of acoustically stimulated electrical activity from several ascending auditory interneurons and local brain neurons and subsequent electrical stimulation of the recording site. Auditory activity was detected in the lateral protocerebrum (where most of the described ascending auditory interneurons terminate), in the superior medial protocerebrum and in the central complex, that has previously been implicated in the control of sound production. Neural responses to behaviorally attractive sound stimuli showed no or only poor correlation with behavioral responses. Current injections into the lateral protocerebrum, the central complex and the deuto-/tritocerebrum (close to the cerebro-cervical fascicles), but not into the superior medial protocerebrum, elicited species-typical stridulation with high success rate. Latencies and numbers of phrases produced by electrical stimulation were different between these brain regions. Our results indicate three brain regions (likely neuropils) where auditory activity can be detected with two of these regions being potentially involved in song initiation.

}, issn = {00221910}, doi = {10.1016/j.jinsphys.2017.03.006}, url = {http://linkinghub.elsevier.com/retrieve/pii/S0022191016302426}, author = {Mit Balvantray Bhavsar and Stumpner, Andreas and Heinrich, Ralf} }