ICA 0: | 537.8/365.3/445.0Mh/s | A:109 R:0+0(none) HW:6/1.4%
If you are using bfgminer these should appear as BES (Block Erupter Sapphire), instead of ICA (Icarus). But you need to "brand" your block erupters for bfgminer to recognise them properly. There isn't much difference, except the settings and timings are slightly tweaked for optimal performance.
See:
https://bitcointalk.org/index.php?topic=250326.0