hi jeroen...working on this. here's what i have so far. 1. Order Lepidoptera Suborder Jugatae Suborder Frenatae Suborder Rhopalocera **Rhapalocera is not a suborder; it's a FAMILY. 2. Order Lepidoptera Suborder Rhopalocera Suborder Heterocera **both Rhapalocera & Heterocera are FAMILIES 3. Order Lepidoptera Suborder Frenatae Suborder Jugatae Suborder Macrolepidoptera Suborder Microlepidoptera **classifying by size (macrolepidoptera & microlepidoptera) is apparently not the most scientific way to classify the suborders. At this point, i have it down between these two as being correct: Order Lepidoptera Suborder Zeugloptera Suborder Dacnonypha Suborder Exoporia Suborder Monotrysia Suborder Ditrysia or Order Lepidoptera Suborder Glossata Suborder Zeugloptera Suborder Aglossata Suborder Heterobathmiina Here are a couple of links where i got some info. this one is one is an encyclopedia link: http://www.nationmaster.com/encyclopedia/Lepidoptera and here's one about classifications also: http://sn2000.taxonomy.nl/Taxonomicon/TaxonTree.aspx?id=29377 I've only had one cup of coffee this morning and still a bit sleepy. But maybe that helps you narrow it down. This is what I would do Jeroen. I used to work at a library. I would go to the library and explain your problem to someone who helps people find information. I betcha they can help you!!! Those librarians are so skilled at solving problems and figuring stuff like this out. I just know they could help you! Anyway, i'll try to help some more later if you want. Kemal and i are gonna go out in just a bit, but i will do my best to help you figure it out. I'm just stuck between these two ways of ordering and i can't figure it out. I'm sure it's simple, but i'm just too sleepy. I'll check back later and see! if no one seems to know the solution we'll just do some more detective work!!! :) see ya!!!!! :)