AraneaeLycosidae – Wolf Spiders

Alopecosa aculeata

This record describes Alopecosa aculeata (species). Recorded family: Lycosidae. Recorded order: Araneae.

Identification and Appearance

Alopecosa aculeata - Alopecosa aculeata
Contributed by John Sloan; Additional contributions by cheins
FeatureDetails
FemaleVoucher specimens: South Dakota: Alberta: epigyne epigyne with some setae removed to reveal more structure
MaleVoucher specimens: Alberta: Newfoundland: left palp, retrolateral view left palp, distal view - showing the mesally directed tooth (Dondale) on the median apophysis

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Arachnida
Order
Araneae (Spiders)
Family
Lycosidae (Wolf Spiders)
Genus
Alopecosa

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

Diet and Behavior

Life History

Females often build shallow retreats under leaf litter and other vegetation. This one was in a shallow depression, with an egg sac, under a piece of moss:

Additional species information

Species notes from the sources

Etymology: (Clerck, 1758)

About Spiders: the wider group

Order-level background for Araneae, the group containing Alopecosa aculeata. 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 Alopecosa aculeata (5)

Alopecosa aculeata - photo 1
Contributed by John Sloan; Additional contributions by cheins
Alopecosa aculeata - photo 2
Contributed by John Sloan; Additional contributions by cheins
Alopecosa aculeata - photo 3
Contributed by John Sloan; Additional contributions by cheins
Alopecosa aculeata - photo 4
Contributed by John Sloan; Additional contributions by cheins
Alopecosa aculeata - photo 5
Contributed by John Sloan; Additional contributions by cheins

Photo credits: Contributed by John Sloan; Additional contributions by cheins

Frequently Asked Questions About Alopecosa aculeata

What is Alopecosa aculeata?

Alopecosa aculeata is a species in the family Lycosidae, within the order Araneae.

How do you identify Alopecosa aculeata?
FeatureDetails
FemaleVoucher specimens: South Dakota: Alberta: epigyne epigyne with some setae removed to reveal more structure
MaleVoucher specimens: Alberta: Newfoundland: left palp, retrolateral view left palp, distal view - showing the mesally directed tooth (Dondale) on the median apophysis
What is the life cycle of a Alopecosa aculeata?

Females often build shallow retreats under leaf litter and other vegetation. This one was in a shallow depression, with an egg sac, under a piece of moss:

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

Photo credits: Contributed by John Sloan; Additional contributions by cheins. Contributors retain copyright over their individual contributions.