AraneaeLinyphiidae – Sheetweb and Dwarf Spiders

Hypselistes florens

This record describes Hypselistes florens (species). Recorded family: Linyphiidae. Recorded order: Araneae.

Identification and Appearance

Hypselistes florens - Hypselistes florens
Contributed by Charley Eiseman; Additional contributions by cheins , pfeiffer

The cephalothorax is bright orange. The coxae, trochanters and femora are similar in coloring, but the remaining leg segments are grey or pigmented with black. See pictures below of the male's cephalic lobe and distinctive pedipalp. The female is similar in appearance to Walckenaeria auranticeps , but the abdomen is wider. and some Hypsosinga females (Araneidae) can be similar too. Male: Palp: Epigynum: Very common.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Arachnida
Order
Araneae (Spiders)
Family
Linyphiidae (Sheetweb and Dwarf Spiders)
Subfamily
Erigoninae
Genus
Hypselistes

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

Habitat and Range

Geographic Range

Eastern, northern, northwestern USA, Canada

Seasonal Activity

Matures in April

Additional species information

Species notes from the sources

Etymology: Author: O. P.-Cambridge, 1875

About Spiders: the wider group

Order-level background for Araneae, the group containing Hypselistes florens. 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 Hypselistes florens (5)

Hypselistes florens - photo 1
Contributed by Charley Eiseman; Additional contributions by cheins , pfeiffer
Hypselistes florens - photo 2
Contributed by Charley Eiseman; Additional contributions by cheins , pfeiffer
Hypselistes florens - photo 3
Contributed by Charley Eiseman; Additional contributions by cheins , pfeiffer
Hypselistes florens - photo 4
Contributed by Charley Eiseman; Additional contributions by cheins , pfeiffer
Hypselistes florens - photo 5
Contributed by Charley Eiseman; Additional contributions by cheins , pfeiffer

Photo credits: Contributed by Charley Eiseman; Additional contributions by cheins , pfeiffer

Frequently Asked Questions About Hypselistes florens

What is Hypselistes florens?

Hypselistes florens is a species in the family Linyphiidae, within the order Araneae.

How do you identify Hypselistes florens?

The cephalothorax is bright orange. The coxae, trochanters and femora are similar in coloring, but the remaining leg segments are grey or pigmented with black. See pictures below of the male's cephalic lobe and distinctive pedipalp. The female is similar in appearance to Walckenaeria auranticeps , but the abdomen is wider. and some Hypsosinga females (Araneidae) can be similar too. Male: Palp: Epigynum:

Where is Hypselistes florens found?

Range: Eastern, northern, northwestern USA, Canada

When is Hypselistes florens active?

Hypselistes florens: seasonal activity - Matures in April.

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

Photo credits: Contributed by Charley Eiseman; Additional contributions by cheins , pfeiffer. Contributors retain copyright over their individual contributions.