\begin{table}%ta1
	%\centering
\par
\caption{\label{symtable}Symbols used to mark the stars in Figs.~\ref{colufig}--\ref{cavifig}.}
	\begin{tabular}{cc}
	\hline 	\hline\noalign{\smallskip}
	Type of star & Symbol  \\
	\hline
	\mbox{X-ray} sources with a stellar counterpart	&X	\\
\mbox{X-ray} sources without any counterpart		&pluses	\\
Stars with disk added from 2MASS member list	&circles	\\
Stars with excesses only in UKIDSS bands	&squares	\\
Stars with excesses in IRAC bands		&diamonds	\\
\hline
\end{tabular}
\end{table}