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Theo is refering to the yellow 'collar' of hairs behind the head. Most tachinid flies have white and/or black hairs behind the head but a few genera have really bushy pale hairs (Exorista, Eurithia etc). My (educated) guess on the identity was based on: very hairy eyes; lots of pale hairs behind the head; the lack of some other features; and I then checked the dusting pattern on the thorax against my photo of a Nemorilla at http://tachinidae...brcno=9601 :) If we could have seen a few other features it would have been a very easy ID - particular the humeral callus - the "shoulders" that make up the forward corners of the thorax, where N. floralis has 3 bristles arranged in a forward-pointing triangle :)