AraneaePholcidae – Cellar Spiders

Psilochorus papago

This record describes Psilochorus papago (species). Recorded family: Pholcidae. Recorded order: Araneae.

Identification and Appearance

Psilochorus papago - Psilochorus papago
(c) Diego Barrales, all rights reserved, uploaded by Diego Barrales

The barb appearance on the spur and the slit procursus with the longer dorsal side separates this species from all other male species with truncated spurs. The low MEP ridges and wide PEP projection on the epigynum will separate it from all other females .

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Arachnida
Order
Araneae (Spiders)
Family
Pholcidae (Cellar Spiders)
Genus
Psilochorus

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Geographic Range

Southern California, Arizona and western New Mexico, into Mexico .

About Spiders: the wider group

Order-level background for Araneae, the group containing Psilochorus papago. Species-specific details appear above.

Group overview

As of 2023, 51,673 spider species in 136 families have been recorded, though an estimated 150,000 species exist. Spiders rank 7th in total species diversity among all organism orders. Only 0.5% of spider species pose any risk to human health.

Ecological role of the group

Spider venom contains complex peptides with diverse pharmacological activities, making them valuable for drug development research. Spiders produce up to 7 types of silk from specialized glands. Spider silk genes have been inserted into mammals and plants for biotech applications.

Economic and practical significance of the group

The global spider community kills an estimated 400-800 million tons of prey annually (2017 study). Spiders provide billions of dollars in natural pest control for agriculture. Spider silk is 5× stronger than steel of the same diameter, driving a biomaterials research industry.

Recorded sources for this group: World Spider Catalog, PNAS, Nature, ScienceDirect. Imported estimates may describe particular regions or reporting periods.

Explore Araneae families and species →

Photos of Psilochorus papago (2)

Psilochorus papago - photo 1
(c) Diego Barrales, all rights reserved, uploaded by Diego Barrales | Contributed by Ken Schneider
Psilochorus papago - photo 2
(c) Diego Barrales, all rights reserved, uploaded by Diego Barrales | Contributed by Ken Schneider

Photo credits: (c) Diego Barrales, all rights reserved, uploaded by Diego Barrales | Contributed by Ken Schneider

Frequently Asked Questions About Psilochorus papago

What is Psilochorus papago?

Psilochorus papago is a species in the family Pholcidae, within the order Araneae.

How do you identify Psilochorus papago?

The barb appearance on the spur and the slit procursus with the longer dorsal side separates this species from all other male species with truncated spurs. The low MEP ridges and wide PEP projection on the epigynum will separate it from all other females .

Where is Psilochorus papago found?

Range: Southern California, Arizona and western New Mexico, into Mexico .

How we use and review source data. Source count does not imply independent verification.

Photo credits: (c) Diego Barrales, all rights reserved, uploaded by Diego Barrales | Contributed by Ken Schneider. Contributors retain copyright over their individual contributions.