After recent confusion I thought I'd show a pic of an Upright Olive which is pretty unmistakable once examined. First of all on a summers evening they appear to have a brownish/reddish tinge while they drift around your head. Another give away is one slight move towards them has them moving the equal distance away from you, a little like catching a tenner in the wind. I've found good hatches of Upright Olives all over Derbyshire especially downstream of a regular gate on the Wye and along stretches of Her Majesty.
Two hours before dusk the male and female could be seen tumbling through the air,top and tailing together in a great disguise, you'd never believe it were Uprights, more like an hawthorn or maybe a chinhook from a distance until you get a close inspection. Anyway lastnight I took a sample of both sexes home for identification after stumbling upstream for 10 mins trying to catch the flippin tricky boggers. A good tip is carry an on site pocket magnifier with you while fishing, which is enough to ID most species, however for more detail capture a sample for microscope later. I bought my fishing magnifier for £4 on ebay with its own leather case - cool piece of kit, an idea from Stuart Croft. I hope the photo taken from my book is enough to help with any confusion on Upright Olives, well the Derbyshire ones anyway. On site i look for the nearly black eyes touching with no bridge between them, dark grey/brown ringed with olive, large hindwings and a dark smudge on its femur (leg section to body)with an orange thorax. Hope this helps somebody as I've decided to show several upwings as they appear naturally.
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