You can use this page to generate a pcap filter to match a specific DNS query.

You can also download a Perl script if you want to generate filters offline.

You must include either a query ID or a QNAME. QTYPE and QCLASS are optional, and will only appear in the rule if a QNAME is used.

Query ID:  Number between 0 and 65535
QNAME:     Hostname, like "id.server" or "www.example.net"
QTYPE:    
                 -----
                 A
                 NS
                 CNAME
                 SOA
                 PTR
                 MX
                 TXT
                 AAAA
                 DNAME
                 DS
                 RRSIG
                 NSEC
                 DNSKEY
                 NSEC3
                 IXFR
                 AXFR
                 DLV
                 
QCLASS:   
                 --
                 IN
                 CH
                 ANY