Acuclavella
Shear, 1986
thorn harvestmen
Species Guides
1Acuclavella is a of small arachnids commonly known as thorn harvestmen, established by Shear in 1986. The genus comprises approximately seven described restricted to the Pacific Northwest region of North America. These harvestmen belong to the Ischyropsalididae and are characterized by distinctive morphological features that distinguish them from related genera. The genus is relatively poorly known, with few observations and limited ecological data available.
Pronunciation
How to pronounce Acuclavella: //ˌæ.kjuː.kləˈvɛl.lə//
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Identification
Members of Acuclavella can be distinguished from other harvestmen by features of the and tarsal claw structure, though specific diagnostic characters require examination under magnification. The 'thorn harvestmen' refers to spiny or tuberculate ornamentation on the body or appendages. -level identification is challenging and typically requires examination of male genitalia.
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Habitat
Found in forested environments of the Pacific Northwest. Specific microhabitat preferences are poorly documented but related in Ischyropsalididae are generally associated with moist, cool including leaf litter, moss, and decaying wood.
Distribution
Pacific Northwest of North America. The precise range boundaries are not well established due to limited sampling and cryptic habits.
Similar Taxa
- CeratolasmaAlso in Ceratolasmatinae; distinguished by differences in and tarsal claw structure
- IschyropsalisType of Ischyropsalididae; differs in body proportions and genitalia structure
More Details
Taxonomic Note
NCBI lists the as Ceratolasmatidae, while Catalogue of Life and other sources place Acuclavella in Ischyropsalididae. The Ceratolasmatinae is consistently recognized across sources. The was erected by Norman I. Plitnick and William B. Peck (credited to Shear, 1986) based on morphological studies of Pacific Northwest harvestmen.