Anyone knows the name of this thing? I found it in our bathroom. It is maybe 10-15 mm.
It looks like a spider but the colors left me puzzled
Biology Stack Exchange is a question and answer site for biology researchers, academics, and students. It only takes a minute to sign up.Sign up to join this community
For example, some red/blue striped species of Psecas:
Wikipedia lists the following species from Brazil:
Psecas chrysogrammus is my best guess given my limited knowledge of the specimen, this family, and arachnid literature.
I couldn't find any definitive or reputable sources regarding P. zonatus.
The sketch of P. chrysogrammus here seems to indicate that this specific species has the horizontal striping seen in the OP's specimen.
Salticidae.org provides these sources for P. chrysogrammus ID info: