The harmful symptoms of floral leafminer, what are the larvae of leafminer?

What is the harmful habit and form of leafminer? Do you know? If you want to know, let's take a look.

For harmful habits: adults lay eggs in the mesophyll, and the larvae first feed under the smooth epidermis of the leaves, causing grayish-white food marks on the leaves. The nearly mature larvae turn to latent food on the back of the leaves, and finally pupate under the epidermis of the back of the leaves. A lifetime of food marks are concentrated on one leaflet, which can also extend from one leaflet to another. There are small gray-white spots on the leaves nearby, and there are about a dozen in one place. The epidermis is ruptured, which is the wound caused by adult absorption.

Shape:

Eggs: oval, gray slightly transparent.

Larvae: grayish white to yellowish, maggot-shaped, about 2 mm long when mature.

Pupa: oval, gray-white, about 2 mm long and 1 mm wide.

Adult: about 2 mm long, black-gray body, transparent forewings, average gray stick.