This is finger like

process at the base of

posterior border of the

front wing which is

projects under the

hind wing

e.g. Jugate Moth

Overlapping

Anal margins overlaps with the costal margin of hind wing

e.g. Butterfly

Hamuli

It consists of rows of minutes hooks on the anterior border of the third hind wing that catch into the uprolleshind border of the wing

e.g. Honey bee

Strong curved process (in male) or a group of strong hairs(in female on the lower side of fore wings,

Frenulum is held by retinculum

e.g geometrid moth

Thanks

4

Patience