Stenocaecilius casarum
This record describes Stenocaecilius casarum (species). Recorded family: Caeciliusidae. Recorded order: Psocodea.
Identification and Appearance

The elongated eye shape and dark mark through the frons and postclypeus are diagnostic Source: E.L. Mockford, pers. comm. to =v= 10.vii.2010
Wikipedia reference for Stenocaecilius casarum: https://en.wikipedia.org/wiki/Stenocaecilius_casarum.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Psocodea (Barklice, Booklice, and Parasitic Lice)
- Suborder
- Psocomorpha
- Family
- Caeciliusidae (Lizard Barklice)
- Subfamily
- Caeciliusinae
- Genus
- Stenocaecilius
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Habitat
palm foliage
Geographic Range
TX, lower Rio Grande valley; apparently spreading northward
Additional species information
Species notes from the sources
Etymology: Stenocaecilius casarum (Badonnel 1931)
About Barklice, Booklice, and Parasitic Lice: the wider group
Order-level background for Psocodea, the group containing Stenocaecilius casarum. Species-specific details appear above.
Group overview
Psocodea includes ~11,000 described species of booklice, barklice, and parasitic lice. Booklice (Psocoptera) are among the most common household insects, thriving in humid environments where they feed on mold and fungi.
Ecological role of the group
Barklice are important decomposers that feed on algae, lichens, and fungi on tree bark. They help recycle nutrients in forest ecosystems. Parasitic lice have co-evolved with their hosts for millions of years, providing insights into host evolutionary history.
Economic and practical significance of the group
Head lice (Pediculus humanus capitis) affect an estimated 6-12 million children aged 3-11 in the U.S. annually (CDC). The U.S. lice treatment market is valued at over $1 billion per year.
Recorded sources for this group: CDC, dermatology research, entomology textbooks. Imported estimates may describe particular regions or reporting periods.
Photos of Stenocaecilius casarum (3)
Photo credits: Contributed by v belov
Frequently Asked Questions About Stenocaecilius casarum
What is Stenocaecilius casarum?
Stenocaecilius casarum is a species in the family Caeciliusidae, within the order Psocodea.
How do you identify Stenocaecilius casarum?
The elongated eye shape and dark mark through the frons and postclypeus are diagnostic
Where is Stenocaecilius casarum found?
| Feature | Details |
|---|---|
| Habitat | palm foliage |
| Range | TX, lower Rio Grande valley; apparently spreading northward |
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