Gryllacrididae are a family of non-jumping cricket

Cricket (insect)

Crickets, family Gryllidae , are insects somewhat related to grasshoppers, and more closely related to katydids or bush crickets . They have somewhat flattened bodies and long antennae. There are about 900 species of crickets...

-like insects occurring worldwide, known commonly as "leaf-rolling crickets" or "raspy crickets". The family historically has been broadly defined to include what are presently several other families, such as Stenopelmatidae ("Jerusalem crickets") and Rhaphidophoridae

Rhaphidophoridae

The orthopteran family Rhaphidophoridae includes the cave wetas, cave crickets, camelback crickets, camel crickets, spider crickets and sand treaders, of the suborder Ensifera; in some regions, such as Missouri and Virginia, these crickets are referred to as "Cricket Spiders"...

 ("camel crickets"), now considered separate. As presently defined, the family contains two subfamilies, with the vast majority (over 90 genera containing over 600 species) in the subfamily Gryllacridinae. The remaining subfamily, Lezininae, contains only a single genus with 12 described species. They are commonly wingless and nocturnal, resting during the day in shelters made from leaves which have been folded over and partially sealed with silk

Silk

Silk is a natural protein fiber, some forms of which can be woven into textiles. The best-known type of silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori reared in captivity...

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External links

• Gryllacrididae page on Wikispecies
• The Nature of Violence, by Dr. Jeffrey Lockwood, Orion Magazine, which discusses the Gryllacrididae and its behavior http://www.orionmagazine.org/index.php/articles/article/2810/