Like the words sheep, deer or moose, the word thrips is used for both the singular and plural forms. So while there may be many thrips there can also be a single thrips en.wikipedia.org/wiki/Thrips
Thrips.
(woocfotfriends with Sacha Distel, Sun 2 Dec 2012, 15:14,
archived)
Duh!
Everyone knows that.
(Bob the Builderkilled Captain Alex, Sat 8 Dec 2012, 17:21,
archived)