PsocodeaLachesillidae – Fateful Barklice

Lachesilla nubiloides

This record describes Lachesilla nubiloides (species). Recorded family: Lachesillidae. Recorded order: Psocodea.

Identification and Appearance

Lachesilla nubiloides - Lachesilla nubiloides
Contributed by Diane Young; Additional contributions by v belov

Forewing marked as in L. nubilis , but paler. Dorsal abdominal rings paler. Male epiproct with two elongate, blunt processes.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Psocodea (Barklice, Booklice, and Parasitic Lice)
Suborder
Psocomorpha
Family
Lachesillidae (Fateful Barklice)
Genus
Lachesilla

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Habitat

Foliage of shrubs and small trees and dead leaves of cattail.

Geographic Range

Recorded from Oregon, Washington and Montana.

Additional species information

Species notes from the sources

Etymology: Lachesilla nubiloides García-Aldrete 1975

About Barklice, Booklice, and Parasitic Lice: the wider group

Order-level background for Psocodea, the group containing Lachesilla nubiloides. 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.

Explore Psocodea families and species →

Photos of Lachesilla nubiloides (2)

Lachesilla nubiloides - photo 1
Contributed by Diane Young; Additional contributions by v belov
Lachesilla nubiloides - photo 2
Contributed by Diane Young; Additional contributions by v belov

Photo credits: Contributed by Diane Young; Additional contributions by v belov

Frequently Asked Questions About Lachesilla nubiloides

What is Lachesilla nubiloides?

Lachesilla nubiloides is a species in the family Lachesillidae, within the order Psocodea.

How big is Lachesilla nubiloides?

~4 mm

How do you identify Lachesilla nubiloides?

Forewing marked as in L. nubilis , but paler. Dorsal abdominal rings paler. Male epiproct with two elongate, blunt processes.

Where is Lachesilla nubiloides found?
FeatureDetails
HabitatFoliage of shrubs and small trees and dead leaves of cattail.
RangeRecorded from Oregon, Washington and Montana.

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by Diane Young; Additional contributions by v belov. Contributors retain copyright over their individual contributions.