OpilionesNemastomatidae

Ortholasma coronadense

This record describes Ortholasma coronadense (species). Recorded family: Nemastomatidae. Recorded order: Opiliones.

Identification and Appearance

Ortholasma coronadense - Ortholasma coronadense
Contributed by marshal hedin

Body uniform in color, legs not banded with color, femoral false articulations only on legs II and IV (II in particular)

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Arachnida
Order
Opiliones (Harvestmen)
Suborder
Dyspnoi
Superfamily
Troguloidea
Genus
Ortholasma

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

Habitat and Range

Habitat

Woodlands under rocks & logs

Geographic Range

San Luis Obispo to San Diego county, most records cismontane

Seasonal Activity

Spring

About Harvestmen: the wider group

Order-level background for Opiliones, the group containing Ortholasma coronadense. Species-specific details appear above.

Group overview

Opiliones (harvestmen/daddy longlegs) includes ~6,650 described species. Despite common myths, harvestmen are NOT spiders - they have a single fused body (not two segments), no venom glands, and no silk. They are completely harmless.

Ecological role of the group

Some harvestmen species practice paternal care - males guard eggs, a rare behavior among arachnids. Many species can detach their legs when caught by predators (autotomy), and the detached leg continues twitching to distract the predator.

Economic and practical significance of the group

Harvestmen have minimal economic impact. They are primarily beneficial as predators of small arthropods and as decomposers of organic matter in forest and garden ecosystems.

Recorded sources for this group: Arachnology research. Imported estimates may describe particular regions or reporting periods.

Explore Opiliones families and species →

Photos of Ortholasma coronadense (5)

Ortholasma coronadense - photo 1
Contributed by marshal hedin
Ortholasma coronadense - photo 2
Contributed by marshal hedin
Ortholasma coronadense - photo 3
Contributed by marshal hedin
Ortholasma coronadense - photo 4
Contributed by marshal hedin
Ortholasma coronadense - photo 5
Contributed by marshal hedin

Photo credits: Contributed by marshal hedin

Frequently Asked Questions About Ortholasma coronadense

What is Ortholasma coronadense?

Ortholasma coronadense is a species in the family Nemastomatidae, within the order Opiliones.

How big is Ortholasma coronadense?

3-4 mm

How do you identify Ortholasma coronadense?

Body uniform in color, legs not banded with color, femoral false articulations only on legs II and IV (II in particular)

Where is Ortholasma coronadense found?
FeatureDetails
HabitatWoodlands under rocks & logs
RangeSan Luis Obispo to San Diego county, most records cismontane
When is Ortholasma coronadense active?

Ortholasma coronadense: seasonal activity - Spring.

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

Photo credits: Contributed by marshal hedin. Contributors retain copyright over their individual contributions.