jack jumper

Noun

 * 1)  Any of various small species of ant of the genus, often capable of jumping and having a painful sting; a jumper. (Also used attributively.)
 * 2) * 2004,, In Tasmania, Harvill Press, p. 261:
 * Glancing back at Hordern's gravestone, I saw that the absent metal letters exposed a pattern of nail holes like woodworm. A jack-jumper ant crawled over his age – he was 63 – and disappeared into the nettles.