Lily beetles

OMG I have joined this miserable club! today for the 1st time ever I have found a b Lily Beetle. I 1st thought "oh a Ladybird", then looked again. hell's teeth and buckets of blood. Where the hell has this come from? I have not bought plants from any outlets to have imported them and I am surrounded by farmland. A neighbour about 1/2 miles away grows a few Lilies but apart from that there are no Lilies that I know of for miles.
I grow MANY Lilies. Maybe if they are really bad I will have to rethink. The damned thing was on 1 of the lilies featured below. I've had these for a good 6 years and not a sign before.

 

I've noticed that!
I've discovered two pairs "at it," in the last week. I've killed about seven in the last few days. Checked just now and didn't see any. Given all the lilies another spray.

 

A spray ....sorry a chemical insecticide!...applied 2 weeks ago and no sign of beetles or damage since
Organically, there is very little we can do to control lily beetle. We can squash the odd one we see, or try to.....they quickly fall to the ground and disappear....but it wont make much difference to the damage they will cause
I dont like chemicals in the garden but I grow lots of lilies and want to keep them so...

 

I wouldn't want to worry any one; but I just removed a lily beetle from a dahlia, are they branching out?

 

Yes, they do attack other plants too. Alas!

 

Here they have a go at Frits, some Hemerocallis, Commelina and (most unforgivably) Tricyrtis.

 

Ditto @ARMANDII

 

This might sound a bit of a 'TALL' story but about eight years ago whilst my wife was still alive, I went to check the greenhouse. There was snow on the ground and the rhododendrons, it was probably due the brilliant red against the snow that gave the little beasties away. So being the kind nature lover that I am. No way could I allow them to freeze to death so I dispatched them swiftly. My dear wife raised an eyebrow probably thinking I was joking. I was able to verify the act by showing the stains on my finger and thumb.
So at least these rwo weren't fair weather bugs (gers). I have never seen one inflight, but they obviously take to the air.
This year I have only seen two in the garden.....shame they were so short lived. I don't like chemical warfare in the garden but, specie lily bulbs can cost an arm and a leg so at times we may need to turn to the bottle..(pesticide)