Adult worms range in length from 2 to 3.5 cm for males and 5 to 7 cm for females. Both are no more than 0.5 mm wide.

Ref 13

          Nuclei, as shown above, are found in the tip of the tail and form a continuous row without large spacing between nuclei, differentiating Loa loa from Brugia malayi and Brugia timori, two nematode agents of lymphatic filariasis.

Ref 12

          Microfilaria are sheathed in a cuticle. The sheath, however, does not stain with Giemsa. Microfilaria have a diurnal periodicity to their concentrations in the bloodstream.