I like Ladybirds, so it is pleasing that on one of the weeds in the front garden I have a colony numbering about twenty.
This is either: Tin Man http://en.wikipedia.org/wiki/Tin_Man_(TNG_episode)
Something else, certainly bug related.
This is probably the most frequently seen grasshopper; it is fairly large and occurs in a very wide range of colours including green, brown and purple, usually with a variable amount of black, brown or grey mottling.
Merodon equestris or the Greater Bulb Fly. This widespread and common hoverfly is a bumblebee mimic, taking on different colour forms to match various bumble bees. It is characterised by the strong projection on the hind femur, which gives it a thickened appearance.