Rusty leaves undersides of Pleurothallis brighamii
 

Hello,
I just received a Pleurothallis brighamii and its leaves looks rusty undersides. You can see on the picture. Is this normal, or some kind of desease? Only the 2-3 younger leaves don't have it.

https://scontent-fra5-2.xx.fbcdn.net...PQ&oe=63733534

Mites?

The photo doesn't display on my computer. The URL is:
http://scontent-fra5-2.xx.fbcdn.net/...PQ&oe=63733534

I agree. It looks like spider mite or mealy bug damage. Look carefully for these pests.

I looked it under magnifying glass and didn't see anything living. Maybe they have treated it in the past.

If you just got it, maybe ask the person or company why the leaves look like that and see what they have to say.

I wrote them yesterday, no response yet. Meanwhile I looked more thoroughly and found 3-4 red mites (probably spider) on one leaf. I cleaned all the 5 orchids from this parcel, sprayed them with SB Plant Invigorator & Bug killer and isolated them on 3d mesh fabric in plastic bottles. I will watch them for some time before introduce them into the terrarium.