Jerusalem Crickets

Stenopelmatidae

Classification

Pronunciation

How to pronounce Stenopelmatidae: /ˌstɛnəˌpɛlməˈtaɪdiː/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Images

Ammopelmatus pictus 247759360 by Monica Ventrice. Used under a CC BY 4.0 license.
Ammopelmatus muwu 152496005 by Steph Cárdenas. Used under a CC BY 4.0 license.
Ammopelmatus muwu 120917282 by jack. Used under a CC BY 4.0 license.
Point Conception Jerusalem Cricket imported from iNaturalist photo 120917294 on 26 January 2022 by (c) jack, some rights reserved (CC BY). Used under a CC BY 4.0 license.
Ammopelmatus muwu 152495852 by Steph Cárdenas. Used under a CC BY 4.0 license.
Ammopelmatus muwu 134909385 by Steph Cárdenas. Used under a CC BY 4.0 license.

Summary

Stenopelmatidae, known as Jerusalem crickets, are large, primarily flightless orthopterans predominantly found underground in damp, sandy soils. Though not aggressive, they can inflict a painful bite if threatened. Their life cycle involves laying eggs underground, and they play a role in soil ecology.

Physical Characteristics

Length: Up to 7.5 cm; Weight: Up to 13 g.

Identification Tips

Recognized for their large size and powerful jaws, which are typically used for burrowing and feeding on roots. Their defensive posture can be identified when disturbed.

Habitat

Damp, sandy soil with organic matter; mostly found underground.

Distribution

North America from British Columbia to Central America; over 50 species in the region, mostly undescribed, with about 200 described species worldwide as of 1991.

Diet

Feeds on roots and organic matter in the soil.

Life Cycle

Eggs are laid several inches underground by females, hatching in spring. Fully grown adults develop by fall.

Reproduction

Females lay eggs underground during the lifecycle; no specific information on mating habits provided.

Predators

Horsehair worms (Gordius or Paragordius spp.) can infect and manipulate behavior, causing crickets to seek water where they may drown or die from parasitic exit.

Ecosystem Role

As soil dwellers, they likely play a role in organic matter recycling and soil aeration.

Cultural Significance

Commonly referred to as 'Children of the Earth' in Mexican culture, indicating their local significance.

Health Concerns

Not aggressive, but can bite if molested; no venom.

Collecting Methods

  • Hand collection from underground burrows
  • Trapping methods

Preservation Methods

  • Alcohol preservation
  • Drying and mounting
  • Freezing prior to preservation

Evolution

Classification of Stenopelmatidae is ongoing, with debates regarding its taxonomic structure and lineage.

Similar Taxa

Misconceptions

They are sometimes thought to be particularly aggressive but are mostly non-aggressive unless threatened.

Tags

  • Jerusalem Crickets
  • Stenopelmatidae
  • Orthoptera
  • Insecta
  • Biology