The grylloblattidae long shaped, ca. 10 mm long, 3 mm wide head. On the back of the head and brown, darker, and ventral foot, tentacles dawn rose, lighter. The surface is fine, the abdomen on both sides and foot with sparse Brown spiny hair. Big head, eyes black, and slightly narrow eyes below 2 thorns hairs. Praelabrum obtrapezoid, upper lip slightly semicircular jaw, lacinia base with a row of brush hairs, front end with 2 denticulation. Labialpalpi section 5, section third is 1, and the length of the 2 sections, with about fourth day long, fifth abridged long tip. Tentacles filiform, 34, the base section thicker and shorter, to the end of the gradual slender, the first section of the most thick, short section of the second, saving for the length of the second 2-2.5 times, the collar of the fourth sections, since the beginning of the tenth section gradually become longer. Pronotum slightly longer than wide, wide front, middle posterior mesonotum into four obvious inward, long a little shorter than the width of the trailing edge, the base is obviously higher than that of pronotum trailing edge are narrow. Metanotum width is about 1.7 times the length of the. The abdomen backplane IO, densely dark brown fur, central section is broad, the festival includes a trailing edge angle, sometimes bearing 1 or 2 dark brown hair brush, the distal (POLEX) end edge is obtuse triangular, extending into the central cone bending downward. Either of 9 day, the base of two very short. Grylloblattidae forefoot femur thick and short length is about the maximum width of 3 times, on the back of the 2 assassination hairs, each row of 3 - 4, the outer surface of light, inside there are some short, in a row of spines along the ventral hairs, about 15 to 18, the majority concentrated in the the end part; Sheng abridged is shorter than the femur, abdominal mask 2 rows of hairs, each row of 4 - 5, 2 from the end of section 5, section 14 section is triangular in dorsal view, fifth day long oval, single tooth claw. Midleg femur is obviously higher than that before the foot is fine, the side of a thorn shaped hair; cavity saving and femur length, each side of the mask spiny hair, end distance of 2, with the section of the foot, hind femur significantly than before, midleg abaxially slender, spiny hair inside 2 lines, 1 lines,. The 10-12 root, the outer edge of 7 book, rubber legs run longer than festival festival, festival of midleg significantly longer than before.
Domestic distribution in Jilin, Changbai Mountain, 2000 meters above sea level, near the lake, snowmelt or water wet place. Line night activities, mainly crawling. Grylloblattidae hidden in the stone, wood, moss and cave. Omnivorous. In plants and insects for food. Oviparous reproduction: Growth: metamorphosis is not obvious.