QihooBot

I've seen QihooBot requests from all the IP addresses in the 220.181.34.161-220.181.34.190 range. It is a crawler for a Chinese search engine http://www.qihoo.com. The full user agent string is "Mozilla/4.0+(compatible;+MSIE+6.0;+Windows+NT+5.1;+QihooBot+1.0++qihoobot@qihoo.net)".  QihooBot does support HTTP compression, however I could not find any robots.txt requests from this bot in my log files.