Sinea diadema

This is an assassin bug in the genus Sinea. It is an immature, called a nymph. 

Order: Hemiptera
Family: Reduviidae
Species: Sinea sp., probably Sinea diadema

Photograph: © 2012 RKD Peterson
Date of Photograph: 24 July 2012
Location: Montana, Gallatin Co. (45o43'41" N 111o08'11" W)