Found in North Carolina’s Piedmont region on a garden hose post. Hose post located near hydrangeas and lariope. Large orangish-red abdomen, shiny blue thorax and head. Front four legs perpendicular to body, rear 2 legs backwards in cockroach fashion. Two antennae, upright. Moving about in swarm fashion in a group of about 20. VERY active. The post in this photo is 3.5 cm square (~1.375 in).
You have Fl predatory stink bugs or also called Halloween bugs. Thanks for the great description and all the info!
They are “good” bugs as they feed on other insect pests like caterpillars, leaf beetles and planthoppers. Both nymphs and adults feed on insects.
They are just found throughout all SE US.
They are known for their metallic blue/green thorax with red abdomens. The adults look similar.
The nymphs are known to congregate together…sometimes this is to attack large insect prey together. Otherwise they sometimes are found together at night.
Moni has an ebook “Garden Insect Pests of North America – Pictures for Identifying and Organic Controls” Check it out!