Curve-faced Solifugids

Pronunciation

How to pronounce Ammotrechidae: //ˌæ.moʊˈtrɛ.kɪˌdiː//

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Summary

Ammotrechidae is a family of solifuges better known as curve-faced solifugids or sand runners, distinguished by their unique physical characteristics and adaptations to arid environments. They are effective predators of other invertebrates.

Physical Characteristics

Ammotrechidae can be identified by their recurved propeltidium and absence of claws on the tarsi of leg I. Tarsal segmentation is typically 1-2-2-(2-4), and males have immovable flagella on the mesal face of each chelicerum. Most species are rarely longer than 2 inches.

Identification Tips

Look for the characteristic recurved propeltidium and the lack of claws on the front legs. The presence of pairs of lateroventral spines on pedipalps is also a key feature.

Habitat

They inhabit arid environments such as dunes and rocky areas.

Distribution

Found primarily in the Americas and the Caribbean Islands, with species mainly located in the South and Southwest of North America.

Diet

Ammotrechidae are carnivorous, preying mainly on other invertebrates. They have high metabolic rates and are voracious predators.

Life Cycle

Life cycle details are not comprehensively documented, but they are known to dig shallow burrows for protection and nesting.

Reproduction

Males and females create burrows for protection and potentially for nesting. Cannibalism has been observed among species.

Predators

They are preyed upon by various vertebrates.

Ecosystem Role

They play a role as predators in their habitat, feeding on scorpions, spiders, and termites, helping to control those populations.

Economic Impact

Though they can be considered pests, they are generally regarded as beneficial due to their predation on other harmful invertebrates.

Tags

• Ammotrechidae
• Curve-faced Solifugids
• Solifuge
• Invertebrates
• Carnivorous
• Arid Habitats