Bird symbol of the state of São Paulo.
Cobra-dormideira (Sibynomorphus neuwiedi).
Exemplar juvenil de falsa-coral (atractus trihedrurus), encontrada no bioma Mata Atlântica a 650 m de altitude no município de Juquitiba - São
Blood feeding insect, a brazilian friend of mine called it "carrapato" (in portoguese).
Diameter is about 1.27 mm (0.05 inches) based on the picture where you can see the grid (I used an Apple iPad 2 as a backlight, the diameter is about 7 pixel and according to Wikipedia the iPad 2 display has 132 pixels per inch).