FURTHER OBSERVATIONS ON INTERCASTE COMMUNICATION IN KALOTERMES-FLAVICOLLIS - FREQUENCY OF VIBRATORY MOVEMENTS UNDER DIFFERENT EXPERIMENTAL CONDITIONS

The longitudinal vibratory movements (LVMs) and the convulsive vibrato ry movements (CVMs) which occur in K. flavicollis have been studied. B oth movements are predominantly performed by nymphs and pseudoergates with different frequencies depending on the caste ratio within the col ony. Physical stimuli (such as light intensity variations and substrat e vibrations), chemical (inorganic and organic compounds) and biologic al (individuals of other insect species) induced an increase in both m ovements, that is much higher for CVM than for LVM.