Over the past 2 weeks we are finding these beetles in our bedroom usually near to a window ( that has a net over it ). They only appear late in the evening. We have never seen them outside, occasionally in the front room, Never in our conservatory. They are about 5 - 7 mm long, and have a hard shell. Generally we see around 6 or 8 in an evening
From what I can see I would say these are likely to be examples of the Lesser Mealworm beetle, Alphitobius diaperinus (Coleoptera: Tenebrionidae). They are not really a household pest in the UK but do have a strong association with poultry farming and aviary birds, where the larvae feed on organic waste of various kinds (including the obvious) - any of these near you?
We do live adjacent to open fields, they may be a chicken farm a couple of miles away. We have lived here for many years and this is the first time we have seen then, something to do with the heatwave ?
The Lesser Mealworm is very close to our bug but ours has more contouring on its shoulders
I will try to get a better photo, Some of the pics on the web look very close and others don't. on you pic there are lots of lines front to back which I don't see on ours. I am no expert so I do not know what is important in identifying them. Should get another pic later. Actually saw some around this afternoon, so maybe they are always about, just more noticable late evening ?
Hi - We have very similar beetles in our house at this time of year. I have only seen 2 so far this year and do not know the name of them, but my husband investigated them a few years ago and they are something to do with birds nests- something we have in the chimmney area of our loft. They suddenly appear out of no where. Normally we scoop them up and throw them out, and touch wood, they do not appear to cause any damage. x
Great. A tip for photography: don't try to gert too close to your subject, a shot from further away is more likely to be sharper and have greater depth of field and it can be cropped and/or enlarged as required.