Mikhail K. Zhemchuzhnikov

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Heliothine moths perceive acoustic information via two auditory sensory neurons only. Previous cobalt staining experiments have described the projection pattern of the two auditory neurons, called the A1 and the A2 cell, plus one additional neuron, the so-called B cell, up to the prothorax. We have obtained new and improved data about the projection pattern(More)
ern populations of G. bimaculatus [9, 10]. Wild progenitors of the colony used in our experiments descend from the crickets caught in the environs of Dushanbe (Tajikistan). In the laboratory, the insects were reared at a temperature of 26°C and 12:12 h light:dark photoperiod [11]. Since the penultimate molt onwards, larvae were kept separately from each(More)
Development of Phaeophilacris bredoides Kalt. was studied under stable laboratory conditions: temperature of 26°C, air humidity 60%, and 12L: 12D photoperiod (Knyazev, 1985). The life cycle of Ph. bredoides includes four stages: egg, pronymph, nymph, and adult. The duration of embryonic development is 28 days. The nymphal ontogeny lasts 230 days and(More)
The development of Gryllus argentinus Sauss. was studied under stable laboratory conditions: the temperature of 26°C, the air humidity of 60%, and the photoperiod of 12h light: 12 h dark. The life cycle of Gryllus argentinus includes four stages: egg, pronymph, nymph, and adult. The duration of embryonic development is 18 days. The depth of egg bedding in(More)
Female crickets (Gryllidae) often rely on the quality of male acoustic signals when choosing a potential mate. This quality can be determined by the frequency and temporal structure of the calling song, and both these characteristics are known to change as males grow old. In addition, female choice is influenced by call amplitude, which is primarily a(More)
The intraspecific behavior of the non-singing cricket Phaeophilacris bredoides Kaltenbach, 1986, which has no tympanal system, stridulatory apparatus, and classical acoustic communication, was studied. Even though this cricket has no song, its intraspecific behavior can be differentiated into reproductive and agonistic (defensive and aggressive), as this(More)
The character of motor activity of female crickets Gryllus argentinus Sauss. was studied in norm and under conditions of inactivation of cercal organ at realization of reproductive and protective behavior at various steps of adult ontogenesis (at the 2nd, 7th, and 12th day). There are described and analyzed various forms of female motor reactions on a(More)
The work presents data on reproductive and protective behavior of non-copulative female crickets Gryllus argentinus Sauss. at the beginning of adult ontogenesis. There is studied character of interaction of females with "virtual" males (the method of "trackball". The forms of female motor reactions are described and characterized in the model of male(More)
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