BugFinder Insects by State Spiders Butterflies & Moths Bees, Ants, & Wasps Beetles All Bugs Videos (YouTube)

Long-legged Sac Spider (Cheiracanthuim mildei)

Detailing the physical features, habits, territorial reach and other identifying qualities of the Long-legged Sac Spider

Loading SVG image placeholder
Image Credit: Barry G. from Chicago, IL
Full-sized image of the Long-legged-Sac-Spider Thumbnail image of the Long-legged-Sac-Spider
Image Credit: Barry G. from Chicago, IL
Full-sized image #2 of the Long-legged-Sac-Spider Thumbnail image #2 of the Long-legged-Sac-Spider
Image Credit: Tanya G. from NJ
Full-sized image #3 of the Long-legged-Sac-Spider Thumbnail image #3 of the Long-legged-Sac-Spider

Despite its propensity to come inside and make itself at home, the Long-legged Sac Spider is best admired from a distance.

Updated: 04/30/2022; Authored By Staff Writer; Content ©www.InsectIdentification.org
This pale spider is typically found in homes and offices on ceilings, in corners, and under beds. It builds a thin silk tent-like shelter in these corners and dark spaces. The silk shelters are not for ensnaring prey, but for resting. The Long-legged Sac Spider is a fast runner because it is an ambush predator, and it is most active at night, under cover of dark. It is not picky; any type of insect it comes across is fair game. It may seek a hidden shelter in a pile of clothes on the floor. Out of surprise, or if getting crushed, the spider will bite. Its non-lethal venomous bite is painful humans and can be slow to heal, giving parents everywhere a good reason to encourage kids to put their clothes away. If startled, they may base jump off of tables and ceilings.

Long-legged Sac Spiders have a darker thorax than abdomen. The pale abdomen has a center marking that is thicker at the 'waist' and tapers off before getting halfway down the abdomen. Though most individuals are brown and ivory, some have abdomens that are a dark yellow, pale green, or even white. Pale legs end with feet that are typically black, or very dark. A female can lay over 30 eggs in one brood. It is possible that if one Long-legged Sac Spider is found inside, others may pop up throughout the week.©InsectIdentification.org

Note: The above text is EXCLUSIVE to the site www.InsectIdentification.org. It is the product of hours of research and work made possible with the help of contributors, educators, and topic specialists. If you happen upon this text anywhere else on the internet or in print, please let us know at InsectIdentification AT gmail DOT com so that we may take appropriate action against the offender / offending site and continue to protect this original work.

General Characteristics

Capability, Shape, Texture/Pattern, Benefits, Dangers
Insect biting icon
Fast insect icon
Harmful insect icon
Venomous insect icon

Taxonomic Hierarchy

Species Breakdown
Kingdom: Animalia
  Phylum: Arthropoda
    Class: Arachnida
      Order: Araneae
        Family: Miturgidae
View More
          Genus: Cheiracanthuim
View More
            Species: mildei

Identifying Information

Size, Colors, Features
Scientific Name: Cheiracanthuim mildei
Other Name(s): Yellow Sac Spider, Black-footed Spider
Category: Spider
Size (Adult; Length): 5mm to 9mm (0.19" to 0.35")
Colorwheel Graphic Colors: white; cream; tan; yellow; black
Descriptors: fast; albino; biting; venomous; harmful; black foot; bathroom

Relative Size Comparison

Typical Size Between 5mm (0.2in) and 9mm (0.4in)
Lo: 5mm
Md: 7mm
Hi: 9mm

Territorial Map*

U.S., Canada, and Mexico
State of Alabama graphic
State of Arizona graphic
State of Arkansas graphic
State of California graphic
State of Colorado graphic
State of Delware graphic
State of Florida graphic
State of Georgia graphic
State of Idaho graphic
State of Illinois graphic
State of Indiana graphic
State of Iowa graphic
State of Kansas graphic
State of Kentucky graphic
State of Louisiana graphic
State of Maine graphic
State of Maryland graphic
State of Michigan graphic
State of Minnesota graphic
State of Mississippi graphic
State of Missouri graphic
State of Montana graphic
State of Nebraska graphic
State of Nevada graphic
State of New England graphic
State of New Jersey graphic
State of New Mexico graphic
State of New York graphic
State of North Carolina graphic
State of North Dakota graphic
State of Ohio graphic
State of Oklahoma graphic
State of Oregon graphic
State of Pennsylvania graphic
State of South Carolina graphic
State of South Dakota graphic
State of Tennessee graphic
State of Texas graphic
State of Utah graphic
State of Virginia graphic
State of Washington graphic
State of West Virginia graphic
State of Wisconsin graphic
State of Wyoming graphic
Canadian territory of Alberta graphic
Canadian territory of British Columbia graphic
Canadian territory of Manitoba graphic
Canadian territory of New Brunswick graphic
Canadian territory of Newfoundland and Labrador graphic
Canadian territory of Ontario graphic
Canadian territory of Quebec graphic
Canadian territory of Saskatchewan graphic
Territory map graphic of the country of Mexico
Contiguous United States shape map layer graphic
Prince Edward Is.  
* MAP NOTES: The territorial heat map above showcases (in red) the states and territories of North America where the Long-legged Sac Spider may be found (but is not limited to). This sort of data is useful when attempting to see concentrations of particular species across the continent as well as revealing possible migratory patterns over a species' given lifespan. Some insects are naturally confined by environment, weather, mating habits, food resources and the like while others see widespread expansion across most, or all, of North America. States/Territories shown above are a general indicator of areas inhabited by the Long-legged Sac Spider. Insects generally go where they please, typically driven by diet, environmental changes, and / or mating habits.
Site Disclaimer  |  Privacy Policy  |  Cookies  |  Sitemap
Beetle Identification Butterfly Identification Caterpillar Identification Spider ID Fungal Infections on Insects Nursery Web Spider Official State Insects Termite Basics Insect Molting Process Bugs of Tennessee House Centipede JoroSpider.org

2024 www.InsectIdentification.org • Content ©2006-2024 InsectIdentification.org • All Rights Reserved. The InsectIdentification.org logo, its written content, and watermarked photographs/imagery are unique to this website (unless where indicated) and is protected by all applicable domestic and international intellectual property laws. Material presented throughout this website is for entertainment value and should not to be construed as usable for scientific research or medical advice (regarding bites, etc...).Please consult licensed, degreed professionals for such information. By submitting images to us (InsectIdentification.org) you acknowledge that you have read and understood our Site Disclaimer as it pertains to "User-Submitted Content". Images in JPG format are preferred with a minimum horizontal dimension of 1000px if possible. When emailing please include your location and the general estimated size of the specimen in question if possible. Please direct all inquiries and comments to insectidentification AT gmail.com. No A.I. was used in the generation of this content.

©2024 www.InsectIdentification.org • All Rights Reserved • Content ©2006-2024 (18yrs)