Please check the following researchgate links and PDF attachment.

https://www.researchgate.net/post/what_statistical_analysis_can_be_done_on_biodiversity_results

 Dear Mostafa,

Entomological diversity might be vague to determine if you consider all species of insects in a particular ecosystem, I think it is better to break down in to certain groups such as orders... etc. In terms of statistical analysis, the above link posted by Dr. Singh is very useful where you can see excellent ideas and discussions. Here is one old but gold article discussing about: Insect diversity: the facts, fictions, and speculation.

Thanks. 

Chet Bhatta

Here is the similar discussion: https://www.researchgate.net/post/what_statistical_analysis_can_be_done_on_biodiversity_results

thank you so much

also, see my answers for the same question on researchgate placed on 26October2016.