Giemsa stain
The microfilariae of "Brugia timori" are longer and morphologically distinct from those of "Brugia malayi" and "Wuchereria bancrofti", with a cephalic space length-to-width ratio of about 3:1. "B. timori" more closely resembles the symptoms caused by "B. malayi" and morphologically resembles "B. malayi". Also, the sheath of "B. timori" does not stain pink with Giemsa stain as is observed with "B. malayi" and "W. bancrofti".