Can't map certain port and path with hosts file

On my localhost I'm trying to map http://127.0.0.1:8888/site/ to www.test.dev. Hosts file is below.

When I load http://127.0.0.1:8888/site/ I see what I want but for www.test.dev I just see Firefox's Server not found page.

What's wrong with my hosts file?

##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting.  Do not change this entry.
##
127.0.0.1       localhost
255.255.255.255 broadcasthost
::1             localhost
fe80::1%lo0     localhost
127.0.0.1:8888/site       www.test.dev

Answer

The hosts file maps names to IP addresses. You cannot put ports or paths in there.