mark,
It's funny you mention that about your brother. My brother is also the same, he is a bug freak. He has hundreds of insects(if not thousands) in rikers mounts. He has a collection of near 30 tarantula (live ones), and many other exotic bugs from around the world. Whenever I have a bug question he is the one to ask,like your bro, he'll spout out the answer in seconds, and in latin. He will even tell where the bug originated from,its main diet, lifecycle, so on and so on.
Try to get him near a computer-- it aint happening at all.