Drassyllus

Drassyllus species can be distinguished from other Gnaphosidae genera by genitalic characters, particularly the structure of the male pedipalps and female epigynum. The genus is characterized by specific arrangements of the eye group and leg spination patterns that differ from related genera such as Gnaphosa and Zelotes. Accurate identification to species level requires microscopic examination of reproductive structures.

Species in this genus are ground-dwelling spiders found in leaf litter, under stones, and in soil crevices. They occupy terrestrial habitats across a range of ecosystems from forest floors to open grasslands and occasionally synanthropic environments.

Records indicate presence in Denmark (DK), Norway (NO), and Sweden (SE). The genus has a broader distribution across the Holarctic region, with species documented in North America, Europe, and Asia.

Members of Drassyllus are nocturnal, wandering hunters that do not construct webs for prey capture. They rely on speed and ambush to capture ground-dwelling invertebrates.

As generalist predators of small invertebrates, Drassyllus species contribute to the regulation of soil and litter arthropod populations. They serve as prey for larger invertebrates, birds, and small mammals.

• GnaphosaOverlapping habitat and general appearance; distinguished by eye arrangement and genitalic morphology.
• ZelotesSimilar ground-dwelling habit and body form; separated by detailed examination of spinneret structure and reproductive organs.

• BugGuide
• Wikipedia
• GBIF taxonomy match
• NCBI Taxonomy
• Catalogue of Life