Isolachus spinosus

Briggs, 1971

Isolachus spinosus is a of harvestman (Opiliones) in the Cladonychiidae, described by Briggs in 1971. It belongs to the suborder Laniatores, a diverse group of short-legged harvestmen often associated with moist microhabitats. The species is known from limited records in the Pacific Northwest of North America.

Isolachus spinosus (10.3897-zookeys.760.24937) Figure 1 (cropped) by (photo by MH) Derkarabetian S, Starrett J, Tsurusaki N, Ubick D, Castillo S, Hedin M (2018) A stable phylogenomic classification of Travunioidea (Arachnida, Opiliones, Laniatores) based on sequence capture of ultraconserved elements. ZooKeys 760: 1-36. https://doi.org/10.3897/zookeys.760.24937. Used under a CC BY 4.0 license.Isolachus spinosus 08 by Shahan Derkarabetian, James Starrett, Nobuo Tsurusaki, Darrell Ubick, Stephanie Castillo, Marshal Hedin. Used under a CC BY-SA 4.0 license.Laniatores (10.3897-zookeys.760.24937) Figure 1 by All photos by MH, except D, E (courtesy of and copyright A. Schönhofer), and F (courtesy of and copyright I. Karaman) Derkarabetian S, Starrett J, Tsurusaki N, Ubick D, Castillo S, Hedin M (2018) A stable phylogenomic classification of Travunioidea (Arachnida, Opiliones, Laniatores) based on sequence capture of ultraconserved elements. ZooKeys 760: 1-36. https://doi.org/10.3897/zookeys.760.24937. Used under a CC BY 4.0 license.

Pronunciation

How to pronounce Isolachus spinosus: //aɪˈsoʊləkəs spɪˈnoʊsəs//

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Distribution

Recorded from Clatsop, Columbia, and Lewis counties in Oregon and Washington, USA. Distribution records indicate presence in western North America.

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Taxonomic Note

The Isolachus belongs to the Cladonychiidae, superfamily Travunioidea. Members of this family are typically small, cryptic harvestmen found in moist forest . The specific epithet 'spinosus' likely refers to spiny features of the body or appendages, though this has not been explicitly documented in the provided sources.

Data Limitations

This is represented by only two observations in iNaturalist and limited museum records. Detailed biological information is not available in the provided sources. The species should not be confused with Jalysus spinosus, a stilt bug (Hemiptera: Berytidae) mentioned in the context source, which is an unrelated insect with a similar specific epithet.

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