Moths get a really bad name, but I think they easily rival our butterflies for beauty and certainly for diversity (and for difficulty of identification - although the next few are easy enough).
This is the Small Magpie - Eurrhypara hortulata, which feeds primarily on Nettle:

The Cinnabar moth - Tyria jacobaea - is one of the most readily identifiable moths and is dependant on Ragwort:

The Brimstone Moth - Opisthograptis luteolata - has a fascinating life-cycle which enables it to adapt to varying winter conditions. Sometimes it overwinters as a larva; at other times as a pupa, the emergence date being governed by the type of overwintering strategy. It can be found as an adult from April to October, with some evidence for three generations over 2 years. Foodplants are shrubs and bushes such as Hawthorn and Blackthorn.
The most frequent leaf-miner on my patch is the micromoth Stigmella aurella, which makes leaf-mines on Bramble (and occasionally, on Meadowsweet). This is the (3mm!) adult:
Tachinid flies are parasitic on moth and butterfly larvae. This one became lunch for a Dung Fly. It's tough out there.