Federal authorities have charged a bank teller and three alleged co-conspirators in a pair of armed bank robberies.

Calia Kane, who was a teller at a Wells Fargo Bank branch in Bala Cynwyd, Montgomery Co., sent the three other suspects -- Marquis Wilson, Malcolm Moore and Martril Foster -- a signal on Nov. 4, 2013, that it was an opportune moment to rob the bank, according to the indictment filed by the U.S. attorney's office in Philadelphia.

The armed suspects, officials said, made off with $81,059.

On Nov. 12, 2013, Kane cased a Wells Fargo branch in East Pikeland Twp., Chester Co., near Phoenixville, and again signaled the suspects of an opportune moment to rob that bank, officials said.

The suspects fled with $70,470, according to the indictment.

Kane, 19; Wilson, 23; Moore, 23; and Foster, 21, all of Philadelphia, have been charged with conspiracy to commit armed bank robbery, armed bank robbery, carrying and using a firearm during and in relation to a crime of violence, and aiding and abetting.

If convicted, the suspects could be sentenced to life in prison and ordered to pay a $1.25 million fine.