Tachycines coreanus
First described from a lava cave on Jeju Island, this wingless cricket also shelters year round in the dark corners of buildings across the Korean peninsula.
| Where | Caves and dark building corners, Korea |
|---|---|
| Size | 18 to 25 mm body length |
| When | May to November |
A humpbacked, wingless cricket with long spiny legs and very long thread like antennae, several times the length of its pale brown body, typical of the camel crickets in this family.
It lives in caves and other permanently dark, humid spaces, and readily moves into basements and similar sheltered corners of buildings, scavenging on organic debris such as fungi and dead insects.
Traits
Habitat
Towns
Colour
Brown
Active
Night
To people
Harmless to people; it does not bite and simply retreats into dark crevices when disturbed.
Activity through the year
Often confused with
A very similarly shaped camel cricket common in Japanese buildings, generally with more strongly mottled banding on the hind legs than this species.
Questions
Is Tachycines coreanus dangerous to people?
Harmless to people; it does not bite and simply retreats into dark crevices when disturbed.
When can you see Tachycines coreanus?
Tachycines coreanus can be seen from May to November, at night.
Plate retouched from a photo by anbalemans, CC0, iNaturalist Licence
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Crickets and grasshoppers›Rhaphidophoridae›Tachycines
Last updated 2026-09-27. Every entry is checked against published sources.