Callobius

Callobius is a genus of spiders in the family Amaurobiidae. Callobius spiders have been sighted 47 times by contributing members. Based on collected data, the geographic range for Callobius includes 2 countries and 11 states in the United States. Callobius is most often sighted outdoors, and during the month of April.

Taxonomic Hierarchy

Kingdom: Animalia
Phylum: Arthropoda
Class: Arachnida
Order: Araneae
Suborder: Araneomorphae
Family: Amaurobiidae
Genus: Callobius

Author

Ralph Vary Chamberlin, 1947

Sightings Overview

There have been 47 confirmed sightings of Callobius, with the most recent sighting submitted on May 24, 2025 by Spider ID member rainkatt. The detailed statistics below may not utilize the complete dataset of 47 sightings because of certain Callobius sightings reporting incomplete data.

Web: 19% of the time, Callobius spiders are sighted in a spider web (Sample size: 47)
Sex: 2 female and 3 male.
Environment: Callobius has been sighted 36 times outdoors, and 22 times indoors.
Outdoors: Man-made structure (15). Low foliage (2). High foliage (2). Ground layer (5). Under rock or debris (8). Open field, pasture, grassland (1). Forest (3).

Location and Range

Callobius has been sighted in the following countries: Canada, United States.

Callobius has also been sighted in the following states: Alaska, California, Connecticut, Maine, Massachusetts, Michigan, New Hampshire, New York, Oregon, Pennsylvania, Washington.