Mother here. The examples listed in the article aren't of much use, as there's not much there you can use to identify species. If you're interested in moths, you'll visit a specialist web site, and if you aren't, you won't visit the Wikipedia pages either. The web site I use is https://www.ukmoths.org.uk, which has photographs of each (UK) species, as well as its range, food plant, and flying time.
Regarding the number of beetle species, JBS Haldane (probably) said that "God is incredibly fond of beetles" (or words to that effect).
As an aside, is mother actually the term? My first readthrough of your comment had me envisioning an incredibly knowledgeable parent with a cool hobby before I realized what you meant!
Regarding the number of beetle species, JBS Haldane (probably) said that "God is incredibly fond of beetles" (or words to that effect).