Nymph of an elm seed bug

6228 We have had these bugs last 2 Springs. There are hundreds of these on my property. They are on side of house, around doors. They are in trees (Siberian elms…I think) eating the leaves and are in ground rock cover. The smaller the bug the redder it looks from a distance. They are quite small. The biggest I have seen is about 4 mm but they seem to vary in size. Please help identify so I can get rid of them. From Oliver BC

Number 6228 – These appear to be nymphs of the elm seed bug, Arocatus melanocephalus (Hemiptera/Heteroptera: Lygaeidae). These do not eat leaves, but suck the juices from elm seeds; they appear to do little real harm, but can become serious nuisance pests. Click here for more detailed information.