Gum Tree Shield Bug

Morphology

This species is distinguished by the very short second antennal segment, and yellowish or orange colour obscured with coarse dark brown to black punctation, giving it the appearance of being dark brown. It is most easily confused with P. lineatus, P. strigatus and P. parilis. Relatively large (14.5-16.0mm).

Evolution

There are 45 described species in this genus. Pentatominae is the largest subfamily in the Heteroptera. 

Behaviour

Poecilometis are typically found on the trunks of trees, and sometimes under bark. Even when not seen, they can sometimes be detected by loud, intermittent buzzing as they fly from branch to branch. When approached they will often walk to the other side of the trunk or farther up the tree, generally moving in a jerking manner. 

Method of reproduction

Sexual

Habitat

Terrestrial

Species of this family are usually associated with species of Eucalyptus or Callitris, sometimes with other trees or shrubs. They are sometimes found under bark, on vegetation and in leaf litter.

Distribution

Occurs in South Australia, Victoria and south-eastern Western Australia.

Life Cycle

As with other true bugs, pentatomids have incomplete metamorphosis: upon hatching from their egg they go through several nymphal stages, each progressively larger and more developed than the next. In the final stage they moult into the adult, which is distinguished from the nymphs by the presence of fully developed wings.