What is the insect that lives just beneath one's skin surface and appears like a 2-3mm mole and what is its lifespan?

The insect with the shortest lifespan is known as a mayfly. This insect barely lives for 24 hours and belongs to the ephemeroptera order.

it is the proventricules found beneath the crop

An insect that appears to be floating on the surface of water is staying on top due to surface tension. If a couple of drops of soap are added to the water, the surface tension is greatly reduced and the insect will sink. I use this as an example since it can easily be tested around the house. Insects aren't necessary for the experiment since other small objects should work as well.

A lightening bug appears to carry a lamp.

The mayfly has a twenty-four hour lifespan, sometimes less. Within their life they mate, give birth, and shortly after, die.

surface tension between the legs & water surface

Presence of chitin on the outer surface of the insect body

If the insect is lighter than the water he displaces, the surface tension will keep it from sinking.

due to surface tension

May Fly.. An insect. Its life span is just a day.

To this phenomenon contribute: water surface tension, nonwettable legs of the insect, weight of the insect distributed on large area.

A high surface tension

truth which has been buried beneath our culture which will finally transform it.

According to the guinness book of world records, the longest recorded living insect was the buprestis aurulenta. A beetle that was found alive on a staircase and remained alive in its nest for 47 years.

insect can walk on water due to surface tention of water and their light weight.

with something called surface tension

This appears to be a typographic error in spelling the word butterflies (plural of insect butterfly).

The archer fish is a tropical freshwater species.They lurk just beneath the surface,waiting for insects to alight on the foliage above.The fish shoots a stream of water from its mouth,knocking the insect into the water,where it is then taken by the fish.

On the surface of the water

Bacitracin is a topical antibiotic ointment that is generally used for injuries or infections. It should only be used on insect bites if the area appears to be infected.

It is a firefly - flying beetles and nocturnal members of the family Lampyridae.

It has to do with surface tension ... they are designed in a way that they can use this tension, along with their lightness and weight distribution, to stay on top of the surface without breaking it.

ben ,Kane ,and Taylor

It needs to breathe as it has a breathing tube. It has to go to the water surface to take in oxygen.

The ironclad beetle has what appears to be the hardest exoskeleton in existence. Stepping on an ironclad beetle does nothing to them.