its a yes and no answer, yes you can have Block Erupters and antminers on the same hub!

but they cant be run with the same cgminer.
You need to install 2 seperate cgminers! and run them seperatly, (one with icarus enabled and the other with bmsc enabled.

i currently have 3 Block Erupters, and 1 Antminer plugged into the same hub i run cgminer 3.1.1 for the BEs and 3.8.5 (frigged) for the Antminer.

Please read back through all posts! myself and phoenixsilverbird decribe how to install Antminers.. follow adafruit (just google it!..lol) tutorial for BE's on 3.1.1