Diglyphus isaea
instars: the first is colourless and transparent, the second is yellow and semi transparent with a brown fat body, and the third larval instar is blue-green. [...] typically range from 0.25-3 per m 2 /release. Releases should be repeated at least 3 times at weekly intervals or until control is achieved. At low temperatures [...] elongated shape, measuring 0.3 x 0.1 mm, and is transparent white in colour. It lies alongside the paralyzed leaf miner larva and is often difficult to spot