Synonyms and other taxonomic changes
close to 30 spp./sspp. (mostly undescribed) in our area (all Grylloblatta
; the second smallest insect order, with 32 described spp. in 5 genera total(2)
Slender, elongate; yellowish brown to gray in color. Wingless. Antennae long and filiform with 28 to 50 segments. Cerci long with 8 segments. Ovipositor sword shaped.
Larvae and adults may be confused with some crickets or with the phasmid genus Timema
Japan, Siberia, nw. US & w. Canada
High elevations, under rocks, at the edge of snow fields or on ice caves and in moss.
Probably predaceous or feed on debris of other insects
Poorly known. They take several years to mature.
Active at rather low temperatures. Mostly nocturnal. They hide druing the day, particularly when the temperature is above freezing.