What are these little black beetles on my roses?
At the weekend I was lucky enough to pick up two David Austin roses for ??16 at a plant fair. Both were in good condition. One was William Morris and the other was Crown Princess Margerita. Today however, I noticed that both, and particularly the princess, were covered in little black beetles, which seemed to be eating the petals (mainly the flowers not the foliage were affected). I have looked it up online, and none of the beetles there described, fit the bill. These were bigger than storm flies (thrips) and definitely black as opposed to brown or black and green. Smaller than ladybirds, or even ants - maybe half the size of a grain of rice? I sprayed them with a rose spray for greenfly and blackspot, and a lot of them have died, but not all. I have taken some pics, but they aren't that good, but give an indication of size. Any ideas folks?