Sequence submitters, in consultation with NCBI Taxonomy Database staff, have concluded that 
the taxonomic information on a large set of ESTs should be changed from 
Culex pipiens (NCBI taxonomy ID 7175) to Culex quinquefasciatus (NCBI taxonomy ID 7176). 
This change has been reflected in UniGene. 
In Sep 30, 2010, data is released for Culex quinquefasciatus.
 

to download UniGene data for Culex quinquefasciatus, go to 
ftp://ftp.ncbi.nih.gov/repository/UniGene/Culex_quinquefasciatus/