Cryptopygus terranovus is a species of springtail belonging to the family Isotomidae.

[4] Cryptopygus terranovus has high levels of genetic variability; up to five times more variability relative to other Antarctic springtail species, possibly suggesting that two evolutionary lineage of Cryptopygus were previously distinct but now have overlapping ranges.

[6] The species is deep blue to black in colour, with a body length of up to 1.25 mm (0.049 in).

[7] The species is found in the northern foothills of Victoria Land, between Football Saddle and Tripp Island.

[4] The holotype of the species was discovered in Terra Nova Bay, southern Victoria Land, Antarctica.