1903 9 July 220/1 The small, but very beautiful, family of the Chrysididæ, or ruby-tail wasps; or, as Colonel Bingham calls them, the cuckoo-wasps.
1916 E. Step (rev. ed.) 468 The ‘deadly enemy’ [of the mason-wasp] is the brilliant little ruby-tail wasp.
2004 (Nexis) 2 Sept. 8 The UK has 300 of them [sc. wasps], from the ruby-tail, sand and tree wasps to the..common wasp and hornet.