Posts

Beneath the surface: A new northern species of Trogloraptor (Araneae: Trogloraptoridae), genetic diversity and natural history

  Beneath the surface: A new northern species of Trogloraptor (Araneae: Trogloraptoridae), genetic diversity and natural history Abstract We present a morphological description of a recently discovered species of spider in the family Trogloraptoridae from the Columbia River Gorge in northwestern Oregon. The family was previously monotypic (Trogloraptor marchingtoni) and only known from populations near the southwestern Oregon—northern California border. Trogloraptor tulishpun sp. nov. retains the key family synapomorphy, distinctive subsegmented raptorial tarsi, and an oblique membranous division of the basal segment of the anterior lateral spinnerets. Trogloraptor tulishpun is distinguished from T. marchingtoni by its color pattern, clypeal height, vulvar and palp structure. We have found T. tulishpun in four localities in the Columbia River Gorge, which show little mitochondrial sequence divergence from one another, but are highly genetically distinct from T. marchingtoni. Troglo...

On South American spiders previously misplaced in Psilochorus Simon (Araneae: Pholcidae), with the description of a new genus with a remarkable disjunct distribution

International Tarantula Occurrence Database (ITOD): Research-Grade Dataset Curation and Growth Assessment

Micro-CT analysis reveals directional genital asymmetry in a mygalomorph spider with two different sperm-storage organs (Araneae: Mecicobothriidae)

A Deep Divergence in the Cold: Yagania, a New Genus of Ghost Spider from Isla de Los Estados, Argentina (Araneae: Anyphaenidae)

Two New Species of Scorpions (Scorpiones: Chactidae) from Northernmost Brazilian Amazon

Broad-Scale Climatic Gradients Drive Multiple Facets of Scorpion Beta Diversity in Northeastern Brazil

Death-feigning behavior following dragline escape in a huntsman spider Heteropoda venatoria (Araneae: Sparassidae)

Arachnids of the Yoakum Dunes Wildlife Management Area

Sexual association and description of the male of Braunilla nigrina (Banks, 1946) (Hymenoptera, Pompilidae, Pompilinae)

Spider venom peptides Ht1a and Gg1a are toxic to honeybee parasite Varroa destructor by topical application

Truncated life history underlies rapid local adaptation in island rattlesnake venom expression

Six Months of Prompt Engineering: Building Scientific Altitudinal, Topographical, and Geological Visualizations for Spiders

Description of a new Andean species of widow spider (Araneae, Theridiidae, Latrodectus)

On the synanthropic occurrence of Falconina gracilis in Venezuela and the type locality of F. brignolii

First checklist of spiders and harvestmen from the Charca de Suárez Protected Nature Reserve (Motril, Granada, Spain)

Antivenom Therapy for Medically Important Spiders in the United States

Venom gland transcriptomics and bioactivity profiling suggest bifunctional hyaluronidase activity in the venom of Mesobuthus crucittii (Scorpiones: Buthidae)