Indiopsocus infumatus

Indiopsocus infumatus can be distinguished from similar barklice by its placement in the genus Indiopsocus, which is characterized by specific wing venation patterns and genitalia structures. It may be confused with planthoppers (Hemiptera) or tiny moths (Lepidoptera) at blacklight, but differs in having chewing mouthparts rather than a beak or proboscis. It can be separated from other common barklice such as Graphopsocus cruciatus by subtle differences in wing markings and body proportions, though precise identification requires microscopic examination.

Found on bark and rocks where it feeds on surface organic matter. Has been attracted to blacklights in residential backyard settings, indicating presence in areas with trees, fences, and other woody substrates.

North America, specifically recorded from the United States and Canada. GBIF distribution records confirm presence in both countries.

Active in autumn; documented at blacklight on October 23 in Kansas, suggesting adult activity extends into late fall.

Nocturnal, as evidenced by attraction to blacklight. Overwinters as adult.

Decomposer; feeds on lichens, algae, and organic detritus on bark and rock surfaces, contributing to nutrient cycling in forest and woodland ecosystems.

Generally harmless; occasionally attracted to outdoor lighting. May be mistaken for pests but does not damage structures or plants.

• Graphopsocus cruciatusAnother common barklouse found at the same blacklight events, but belongs to a different genus with distinct wing patterning
• Trichadenotecnum alexanderaeSimilar size and habitat preference, but in a different genus and species complex within Psocidae
• Flatormenis proxima (Northern Flatid Planthopper)Similar size and blacklight attraction, but distinguished by piercing-sucking mouthparts and different wing posture

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• Catalogue of Life
• Bug Eric: Last Night to Blacklight?