Assassin Bug
Adult, ventral
Ellura
Assassin Bug
Instar, profile, ~13mm
 
    
Assassin Bug (Oncocephalus sp ES1)Class: Animals (Animalia) - Jointed Legs (Arthropoda) - Insects (Insecta)
Order: True Bugs (Hemiptera)
Family: Assassin Bug (Reduviidae)
Species: Assassin Bug (Oncocephalus sp ES1)
This Photo:     Instar, dorsal

EXTRA - Photo Specific Information:
Visually there is no way to know if this instar is ES1, 2 or 3 as there are no wings to compare. It is the only instar we have of this genus. It would need to be raised to determine more closely what it is.
General Species Information:
Found on Ellura (in the Murray Mallee, SA) and elsewhere
Interesting bugs Assassins (Reduviidae), one of the few predatory/carnivorous true bugs (order Hemiptera). Most are vegetarian.
One easy diagnostic difference over the similiar Alydidae family are the large front legs as can be seen here; used to hold it's prey. Not all assassins have them, but no Alydidae's do.
A more guaranteed diagnostic, but harder to see, is that Assassin's have a curved rostrum / proboscis

Copyright © 2015- Brett & Marie Smith. All Rights Reserved. Photographed 18-Nov-2015
This species is an Australian Native Species, not listed in the SA Murray Mallee Survey of 2010.