  In a recent work, Kilcik et al. (2017), have detected the temporal and
periodic behavior of sunspot counts (SSC) in flaring (i.e. C, M, or X class
flares), and non-flaring active regions for the last two solar cycles, covering
the period: 1996 - 2016. The main results obtained are: 1) The temporal
behavior of monthly means of daily total SSC in flaring and non-flaring active
regions are different and these differences are also varying from cycle to
cycle; 2) The periodicities detected in SSC of flaring and non-flaring active
regions are quite different and these variations are also different from one
cycle to another; the highest detected period in the flaring active regions is
113 days, while there are much higher periodicities (327, 312, and 256 days) in
non-flaring regions. The detection of typical different periodicities in
flaring and non-flaring regions can suggests both important differences and
physical interpretation in the magneto-hydrodynamic behavior of the Sun. For
this reason in the present paper we show a further periodicity analysis of the
sunspot counts in flaring and in non-flaring active regions using the same data
source of that used by the above cited authors and applying a powerful wavelet
analysis tool which is particularly useful to detect multiscale features of
complex unsteady and unevenly sampled time series. In order to futher support
the differences and similarities found in the time behavior of SSC in flaring
and non-flaring regions, we also computed the behavior of the wavelet entropy,
a proper time function which allow us to measure the degree of complexity in
the dynamics of the related time series.
