If a search term matches a single target, then search automaticly redirects to that page
Queries can easily result thousands of matches. The output of the query result stops after 2000th entry (e.g. ':linnaeus' attemps to search all names authored by Linnaeus, and there are many). If this happens, change query more specific.
Functionally, the query string is "Fuzzy LSID" for this site. Sufficiently specific query (like 'papilio antiopa:linnaeus') will always match only one item, and will always redirect to the target. Note: 'nymphalis antiopa:linnaeus' will not match anything, because Linnaeus didn't describe the 'antiopa' under 'Nymphalis'!.