Never seen this bug before- is favouring the citrus, lilly pilli, roses and avocado- just appeared in this really hot weather. There also seems to be some leaf wilt on some of the plants(citrus mainly) that they are on but not sure if that is more to do with the really hot weather. They are in their hundreds- orange with a brown band between head and body with a black spot on each wing. They are about 4mm long and 2mm across- so quite small. If you know what they are can you also let me know whether they are harmless or is there something I can do to fix them. I have checked all the gardening books and found nothing!
thanks