\begin{tikzpicture}[scale=2] \clip (0,0) circle (1.25cm); \coordinate (o) at (0,0); \coordinate (r) at (1,0); \coordinate (-1) at (-1,0); \tkzDefPoint(70:.5){z} \tkzDefPoint(-70:.5){zbar} \tkzDefPoint(110:.5){w} \tkzDefPoint(-110:.5){wbar} \draw[dashed](-1)--(r); \tkzCircumCenter(-1,z,r)\tkzGetPoint{c1} \tkzDrawArc[dashed,color=black](c1,r)(-1) \tkzCircumCenter(-1,zbar,r)\tkzGetPoint{c2} \tkzDrawArc[dashed,color=black](c2,-1)(r) \tkzDrawCircle[dashed,color=blue](o,r) \tkzDefLine[perpendicular=through z,K=1](c1,z)\tkzGetPoint{pt}; \tkzInterLL(z,pt)(-1,r)\tkzGetPoint{l1} \tkzInterCC(l1,z)(o,r)\tkzGetPoints{t1}{t2} \tkzDrawArc[dashed,color=black](l1,t2)(t1) \tkzCircumCenter(-1,w,r)\tkzGetPoint{d1} \tkzDefLine[perpendicular=through w,K=1](d1,w)\tkzGetPoint{pt2}; \tkzInterLL(w,pt2)(-1,r)\tkzGetPoint{l2} \tkzInterCC(l2,w)(o,r)\tkzGetPoints{tw1}{tw2} \tkzDrawArc[dashed,color=black](l2,tw2)(tw1) \fill[fill=blue,opacity=0.1] (w) to [bend left=8] (wbar) to [bend right=5] (zbar) to [bend left=8] (z) to [bend right=5] (w); \tkzDrawArc[color=blue](l2,wbar)(w) \tkzDrawArc[color=blue](l1,z)(zbar) \tkzDrawArc[color=blue](c1,z)(w) \tkzDrawArc[color=blue](c2,wbar)(zbar) \tkzInterLC(o,r)(l1,z)\tkzGetPoints{a}{a1} \tkzInterLC(o,r)(l2,w)\tkzGetPoints{am1}{am} \tkzDrawPoints[fill=red](z,a) \tkzDrawPoints(zbar,-1,r,w,wbar,am) \tkzLabelPoint[right](r){\(1\)} \tkzLabelPoint[left](-1){\(-1\)} \tkzLabelPoint[above right](z){\(z\)} \tkzLabelPoint[below right](zbar){\(\overline{z}\)} \tkzLabelPoint[below right](a){\(a\)} \tkzLabelPoint[below left=-2pt](am){\(-a\)} \draw (75:1.1) node{\(L_1\)}; \draw (105:1.1) node{\(L_2\)}; \draw (30:.84) node{\(C_1\)}; \draw (-30:.84) node{\(C_2\)}; \end{tikzpicture}