Hmm.. that sucks

Which uni are you at? It may be different for insects, but my understanding was that schools need to provide an alternative if someone does not wish to participate in dissection-type activities. I'll shoot you an email and put you in touch with someone who might be able to give you some advice on this.
I'm studying Environmental Science (Wildlife and Conservation Biology) at Deakin Uni Burwood and when doing water analysis we were asked to get insects and put them in ethanol for preserving. Hated it. And in retrospect shouldn't have done it. If I remember right, the Uni Ethics allow insect sampling (as don't have a backbone). May also be around their perceptions of insects feeling pain. I want to look into this further.
I was provided with an alternative for a cane toad dissection. I also asked my biology prac leaders where preserved animals in jars had came from. They said they naturally died. I find it unacceptable that information isn't provided in out uni guides about animal ethics and where animals are sourced.
It is frustrating and as you may have experienced- I was not understood or was my curiosity respected.
I'll probably be required to look at animal cells this year. And as usual, I will get quizzical looks when I ask (where did these come from).
Huf.
However one good resource is
www.humaneresearch.org.au
They are a not for profit based in Melbourne but have great online resources. They do have software dissection alternatives that you can use, however unfortunately in my opinion they are out of date.
Talking to your uni chair is a good idea, my advice is to also have an email trail so if you want to take it further (i.e.: risk to failing).
Good Luck
Sarah