  We study the latitudinal distribution and evolution of sunspot areas from
Solar Cycle 12 to Solar Cycle 23 (SC12-SC23) and sunspot-groups of from Solar
Cycle 8 to Solar Cycle 23 (SC8-SC23) for even and odd cycles. The Rician
distribution is the best-fit function for both even and odd sunspots group
latitudinal occurrence. The mean and variance for even northern/southern
butterfly wing sunspots are 14.94/14.76 and 58.62/56.08, respectively, and the
mean and variance for odd northern/southern wing sunspots are 15.52/15.58 and
61.77/58.00, respectively. Sunspot groups of even cycle wings are thus at
somewhat lower latitudes on the average than sunspot groups of the odd cycle
wings, i.e., about 0.6 degrees for northern hemisphere wings and 0.8 degrees
for southern hemisphere wings. The spatial analysis of sunspot areas between
SC12-SC23 shows that the small sunspots are at lower solar latitudes of the sun
than the large sunspots for both odd and even cycles, and also for both
hemispheres. Temporal evolution of sunspot areas shows a lack of large sunspots
after four years (exactly between 4.2-4.5 years), i.e., about 40\% after the
start of the cycle, especially for even cycles. This is related to the
Gnevyshev gap and is occurring at the time when the evolution of the average
sunspot latitudes cross about 15 degrees. The gap is, however, clearer for even
cycles than odd ones. Gnevyshev gap divides the cycle into two disparate parts:
the ascending phase/cycle maximum and the declining phase of the sunspot cycle.
