Interesting.
Do they have wings?
External conspicuous mouthparts?
I find this useful sometimes.
http://www.ento.csiro.au/education/key/couplet_01.html
Cheers
Liz

"Richard Wright" wrote in message
news
Found these insects lurking under a citrus leaf this morning, in
Sydney.

http://www.box.net/shared/static/rx8jh0okoh.JPG

There are 13 spheres and 13 insects, so I assume they have recently
hatched from eggs.

What in the name of fortune are they?