Phloeidae

Definition

A family of true bugs (Hemiptera) endemic to the Neotropics, commonly called bark bugs. Members are dorsoventrally flattened with cryptic bark-matching coloration, an adaptation for living concealed under loose bark on tree trunks. The family is morphologically distinctive within the infraorder Pentatomomorpha, though its precise phylogenetic placement among related bug families remains under study.

Etymology

From Greek phloios (bark of a tree), referring to the arboreal microhabitat.

Example

Phloeidae species such as Phloea subquadrata rely on extreme body flattening and mottled gray-brown patterning to escape detection by predators while foraging under the exfoliating bark of tropical forest trees.

Synonyms

• Neotropical bark bugs

Related Terms

• Hemiptera
• Pentatomomorpha
• Phloea
• cryptic coloration
• dorsoventral flattening
• bark microhabitat

Usage Notes

The common name 'bark bugs' is shared with some unrelated Heteroptera (e.g., certain Aradidae), so context matters. Phloeidae is strictly Neotropical; reports from other regions usually represent misidentifications or vagrant specimens. The family is small and rarely encountered except by specialists searching under bark in primary forest.