I need help from people who know a lot about bugs.

Well it's not necessarily needing to know about bugs that is the point here but...

I had a read up on the poem, and when আপনি take the moth, it is a risk taker, it is willing to live a short life in an instance as long as it is a happy life and go out with a bang...literally here with the light. Then আপনি could have something like a cockroach that relates to the speaker who says he would rather live twice as long with half the happiness.
Cockroaches are ugly, unexciting creatures who are pretty darn indestructible, it takes a lot for them to die.

Then when আপনি relate this to our reality, আপনি have people like the পোকা in the world, and people like the cockroach. আপনি could say that the cockroach people envy the moth's way of life. Fast paced, exciting and happy while their own existence is and ugly one, dragged out and uneventful. And yet আপনি could say that the পোকা is immature and naive, and doesn't understand nor respect the আরো conservative and civilised philosophy of the cockroach.

This is a reflection of life. Where beauty becomes envied as people seem to think that beauty equates to happiness. Beauty seems to equal an easy life with humans. And that if they are not beautiful, অথবা do not have one small moment of excitement and the thrill of risk, then they will lead a long, boring sad life.

However one can't exist without the other. If আপনি live solely দ্বারা the way of the moth, আপনি end up like him in the end of the poem. His life was ended দ্বারা lack of control, too much risk. But then the speaker (the cockroach) also isn't better off, as he would constantly be brought down দ্বারা his boring existence brought upon দ্বারা not taking risks. Balance is needed to live a long but also happy life.

Sorry if that's not what you're after. It's 2am in the morning as I type this, forgive me xDD