Phasmatinae

Definition

A subfamily of stick insects (order Phasmida) within the family Phasmatidae, characterized by elongate, twig-mimicking bodies and containing at least three recognized tribes. Members are distributed across multiple continents and exhibit classic phasmid crypsis, with some species showing facultative parthenogenesis and remarkable intraspecific variation in body form.

Etymology

New Latin, from Greek phasma (apparition, phantom) + -inae (subfamily suffix)

Example

The Australian giant spiny stick insect Extatosoma tiaratum, often assigned to Phasmatinae, illustrates the subfamily's tendency toward extreme body elongation and spiny defensive ornamentation.

Related Terms

• Phasmatidae
• Phasmida
• Verophasmatodea
• Anareolatae
• Phasmatodea
• stick insect
• phasmid
• Crypsis
• Parthenogenesis

Usage Notes

Spelling was historically unstable; Bradley and Galil (1977) established 'Phasmatinae' as the correct form. The subfamily is distinguished from other phasmatid subfamilies (such as Clitumninae and Lonchodinae) by genitalic and egg-morphology characters, though tribal-level classification remains under revision. Not all phasmatid genera are currently assignable to subfamily with confidence.