Styloctetor

Simon, 1884

Species Guides

1

Styloctetor is a of sheet-web weaving spiders ( Linyphiidae) described by Eugène Louis Simon in 1884. The genus contains eight recognized distributed across Asia, North Africa, Europe, and North America. Members construct flat, horizontal sheet webs for prey capture. The type species is Styloctetor romanus (O. Pickard-Cambridge, 1873).

Pronunciation

How to pronounce Styloctetor: /staɪlɒkˈtiːtɔr/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Distinguished from other linyphiid by genitalic characters; males possess distinctive embolus and conductor structures, females by epigynal . -level identification requires examination of in males and in females. Small-bodied spiders, typical of sheet-web weavers.

Habitat

Terrestrial ; specific microhabitat preferences vary by . Found in forest litter, moss, and low vegetation. Some species occur in alpine and subarctic regions.

Distribution

Holarctic distribution: Europe (including Switzerland, Austria), North Africa (Morocco, Algeria), Turkey, Caucasus, Russia (European to Far East), Central Asia (Kazakhstan, Mongolia, Tuva), China, and North America (USA including Alaska, Canada).

Behavior

Constructs horizontal sheet webs, often with a retreat at the margin or beneath the sheet. The web lacks the threads characteristic of some other linyphiid webs.

Ecological Role

Small in litter and ground-layer ; contribute to regulation of microarthropod .

Similar Taxa

  • LinyphiaAlso constructs sheet webs, but Styloctetor webs lack the dome-shaped structure and threads typical of Linyphia; genitalic distinct.
  • BathyphantesSimilar preferences and body size; distinguished by male and female structure.
  • ErigoneOverlaps in distribution and ; Erigone generally have different arrangement and genitalic features.

More Details

Taxonomic history

The was established by Simon in 1884 with Styloctetor romanus as type . Several species were transferred from other genera, including Erigone and Linyphia, based on revised understanding of genitalic .

Species diversity

Eight recognized as of 2019: S. austerus, S. compar, S. lehtineni, S. logunovi, S. okhotensis, S. purpurescens, S. romanus, and S. tuvinensis. S. compar and S. purpurescens have transatlantic distributions.

Sources and further reading