SolifugaeAmmotrechidae – Curve-faced Solifugids

Ammotrechella stimpsoni

This record describes Ammotrechella stimpsoni (species). Recorded family: Ammotrechidae. Recorded order: Solifugae.

Identification and Appearance

Ammotrechella stimpsoni - Ammotrechella stimpsoni
no rights reserved. https://creativecommons.org/publicdomain/zero/1.0/ Source: https://www.inaturalist.org/observations/68866028

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Arachnida
Order
Solifugae (Windscorpions)
Family
Ammotrechidae (Curve-faced Solifugids)
Genus
Ammotrechella

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

Habitat and Range

Habitat

most records along FL coast

Geographic Range

FL peninsula - Map , concentration of records in the northern peninsula , plus one record from c.GA (Stevenson, 2017)

Seasonal Activity

at least Jan-Oct

Diet and Behavior

Life History

"A single female and 19 immatures were collected from the Florida Keys in moist termite-infested and rotten limbs of red mangrove, Rhizophora mangle , and sweetbay, Magnolia virginiana . During dry periods, no specimens were taken under these conditions. Two immatures were collected from nests under the bark of standing dead pine trees. In the laboratory, females, males, and young all constructed nests and burrows in soil, and nests and burrows in pith, cornstalks, and rotten wood. Subterranean burrowing involved biting, raking, and plowing with variations similar to those exhibited by A. peninsulana . Burrows in wood, pith, or cornstalks were constructed by biting and raking with biting predominant. Nests in such media were smaller than those constructed in soil. Young frequently utilized termite galleries or woodboring beetle tunnels rather than burrow in rotten wood." ( 3 )

Additional species information

Species notes from the sources

Etymology: named for American naturalist William Stimpson (1832–1872). While Stimpson is best known for his work on marine crustaceans and mollusks, his 19th-century descriptions include, or are related to, various taxa that fall under the broader phylum Arthropoda, including arachnids and related chelicerates.

About Windscorpions: the wider group

Order-level background for Solifugae, the group containing Ammotrechella stimpsoni. Species-specific details appear above.

Group overview

Solifugae (sun spiders/camel spiders/wind scorpions) includes ~1,100 described species. Despite terrifying appearances, they are non-venomous and harmless to humans. They can run up to 10 mph (16 km/h), making them among the fastest arachnids.

Ecological role of the group

Solifuges are voracious nocturnal predators that hunt insects, spiders, and even small lizards. They have the largest jaws relative to body size of any arachnid. Unlike spiders, they have no venom and kill prey purely with mechanical force.

Economic and practical significance of the group

Solifuges have no significant economic impact. They gained widespread internet fame during the Iraq War when exaggerated photos circulated showing them as enormously large.

Recorded sources for this group: Arachnology research, natural history. Imported estimates may describe particular regions or reporting periods.

Explore Solifugae families and species →

Photos of Ammotrechella stimpsoni (6)

Ammotrechella stimpsoni - photo 1
no rights reserved. https://creativecommons.org/publicdomain/zero/1.0/ Source: https://www.inaturalist.org/observations/68866028
Ammotrechella stimpsoni - photo 2
Contributed by Jeff Hollenbeck; Additional contributions by Mike Quinn , metrioptera
Ammotrechella stimpsoni - photo 3
Contributed by Jeff Hollenbeck; Additional contributions by Mike Quinn , metrioptera
Ammotrechella stimpsoni - photo 4
Contributed by Jeff Hollenbeck; Additional contributions by Mike Quinn , metrioptera
Ammotrechella stimpsoni - photo 5
Contributed by Jeff Hollenbeck; Additional contributions by Mike Quinn , metrioptera
Ammotrechella stimpsoni - photo 6
Contributed by Jeff Hollenbeck; Additional contributions by Mike Quinn , metrioptera

Photo credits: Contributed by Jeff Hollenbeck; Additional contributions by Mike Quinn , metrioptera

Frequently Asked Questions About Ammotrechella stimpsoni

Where is Ammotrechella stimpsoni found?
FeatureDetails
Habitatmost records along FL coast
RangeFL peninsula - Map , concentration of records in the northern peninsula , plus one record from c.GA (Stevenson, 2017)
When is Ammotrechella stimpsoni active?

Ammotrechella stimpsoni: seasonal activity - at least Jan-Oct.

What is the life cycle of a Ammotrechella stimpsoni?

A single female and 19 immatures were collected from the Florida Keys in moist termite-infested and rotten limbs of red mangrove, Rhizophora mangle , and sweetbay, Magnolia virginiana . During dry periods, no specimens were taken under these conditions. Two immatures were collected from nests under the bark of standing dead pine trees. In the laboratory, females, males, and young all constructed nests and burrows in soil, and nests and burrows in pith, cornstalks, and rotten wood. Subterranean burrowing involved biting, raking, and plowing with variations similar to those exhibited by A. peninsulana . Burrows in wood, pith, or cornstalks were constructed by biting and raking with biting predominant. Nests in such media were smaller than those constructed in soil. Young frequently utilized termite galleries or woodboring beetle tunnels rather than burrow in rotten wood. ( 3 )

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

Photo credits: Contributed by Jeff Hollenbeck; Additional contributions by Mike Quinn , metrioptera. Contributors retain copyright over their individual contributions.