Graphopsocus
Kolbe, 1880
Graphopsocus is a of in the , . These small are characterized by their flattened bodies and broad, rounded that are held roof-like over the body when at rest. The genus includes both and , with at least one species, Graphopsocus cruciatus, having established outside its native European range. Barklice in this genus feed on microflora such as , lichens, and growing on surfaces.
Pronunciation
How to pronounce Graphopsocus: //ˈɡræfoʊˌsoʊkəs//
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Identification
Graphopsocus can be distinguished from other by their broad, rounded shape and specific patterns. The typically show a distinct and characteristic branching of . Species-level identification requires examination of wing details and . Graphopsocus cruciatus, the most commonly encountered species in some regions, has a distinctive wing pattern with a dark crossband that gives it the "F-winged Barklouse."
Images
Habitat
Found on vegetation including tree bark, leaves, and woody stems where microflora grow. Often observed on the exterior surfaces of buildings, fences, and other structures. Most abundant in late autumn.
Distribution
to Europe; established in North America. Records from Vietnam, Denmark, Norway, Sweden, and the United States (including Vermont).
Seasonality
Most abundant and diverse in late autumn; may be found in winter months during warm periods.
Diet
Graze on microflora including , lichens, and on surfaces.
Behavior
Gregarious; often found in on suitable substrates. are active walkers and may disperse to new locations by .
Ecological Role
Contribute to by consuming and breaking down microflora on surfaces; serve as for various small .
Human Relevance
Generally harmless; do not damage living plants or stored products. One , Graphopsocus cruciatus, has become familiar to naturalists in North America.
Similar Taxa
- IndiopsocusAnother of with similar habits, but differs in shape and details.
- Trichadenotecnum ; in this have more elongate and different patterning.
- Psocoptera (other families)Other such as and Caeciliusidae differ in , body proportions, and antennal characteristics.
More Details
Introduced Species
Graphopsocus cruciatus is to Europe but has been to North America, where it is now regularly encountered by and naturalists.