You may look in Forums List » The Guides » Plant Tycoon Guide »

[SPOILERS] Deathwing's Guide to Insect Catching

and [SPOILER] The Insect Collection

you may see better the insects collection screen in the Charley's guide to Plant Tycoon (scroll down inside it)

And... be patient!... veeery patient!! wink
Good luck!
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My Story: Aika's Memoirs in Kitten's forum