Jason, you're right. This is a very interesting species with a unique pattern. Hopefully, one of the 'experts' can steer me on the right track as to what exactly it is. :)

A really neat find, and your images are clearer than the one existing in the guide. I feel pretty confident that Stenolemus is the genus. They apparently prey on spiders in their webs.

I researched this particular insect, and it seems to be a rare find. Even in Google, there was very little information resulting from a search including only one image result. I did, however, find one link that offers some interesting information. The reference is at the bottom of this post.


Stenolemus Assassin Bugs

Assassin bugs are dangerous predators, and some of the most fascinating of them all belong to the Stenolemus genus. Two Australian Stenolemus bugs, Stenolemus bituberus and Stenolemus giraffa, hunt spiders using a predatory tactic known as aggressive mimicry (where the predator mimics another organism that is beneficial, or at least harmless, to the prey).

These two species hunt spiders by pretending to be an insect caught in the spider web. The bug lures the spider towards it by plucking the silk, sending vibrations throughout the web to the spider. The spider is fooled into thinking that the bug is food caught in its web and follows the vibrations toward the bug. When the spider is close enough, the bug stabs it with its sharp beak, killing it, and then proceeds to suck out insides of the spider using the beak like a straw.

REFERENCE: http://stenolemus.blogspot.com