Forest-arthropod
Guides
Hemiscolopendra
bark centipedes
Hemiscolopendra is a genus of bark centipedes in the family Scolopendridae, comprising approximately six described species distributed across North, Central, and South America. These centipedes are commonly found in wooded habitats where they inhabit bark, leaf litter, and other decaying organic matter. The genus was established by Kraepelin in 1903 and represents a moderately diverse lineage within the large-bodied scolopendrid centipedes.
Leiobunum crassipalpe
Leiobunum crassipalpe is a harvestman species in the family Sclerosomatidae, first described by Nathan Banks in 1900. It belongs to a genus characterized by exceptionally long legs and elongated body forms. The species occurs in the south-central United States, where it inhabits wooded habitats. Males possess distinctive enlarged pedipalps that extend dorsally above the ocularium.
Pityohyphantes costatus
hammock spider
Pityohyphantes costatus, commonly known as the hammock spider, is a sheetweb weaver in the family Linyphiidae. The species name derives from its distinctive web architecture, which resembles a suspended hammock. It occurs primarily in coniferous forests of North America, though it has also been found in hardwood habitats. The genus name translates from Greek as 'pine weaver,' reflecting its association with coniferous vegetation.
Schendyla
Schendyla is a genus of soil-dwelling centipedes in the family Schendylidae, first described in 1866 by Danish entomologists Vilhelm Bergsøe and Frederik Vilhelm August Meinert. The genus comprises more than 20 species distributed across the western Palearctic region. These centipedes are small to medium-sized, ranging from approximately 1 cm to 4.5 cm in length, with leg pair counts varying dramatically between species—from 29 to 57 pairs. The genus exhibits notable morphological diversity in body size and leg number, with some species like S. antici being exceptionally small (5–8 mm) with minimal leg pairs, while others like S. vizzavonae reach 45 mm.
Taracus pallipes
Taracus pallipes is a species of harvestman (order Opiliones) in the family Taracidae, native to western North America. The species was described by Nathan Banks in 1894. It is a relatively small, long-legged arachnid found in forested habitats. Observations and specimen records indicate a distribution centered in the Pacific Northwest region of the United States, with records from Washington and Oregon.