Tatosoma tipulata, also known as the kāmahi green spindle, is a species of moth in the family Geometridae.

The larvae have been recorded as feeding on Pterophylla racemosa, Nothofagus cliffortioides and Podocarpus totara.

This species was first described by Francis Walker in 1862 and named Cidaria tipulata using a specimen collected either at Hawke's Bay or Taupō by William Colenso.

[4] This species was again described by Cajetan von Felder and Alois Friedrich Rogenhofer in 1875 and named Sauris mistata.

[6] George Hudson discussed and illustrated this species under the name T. tipulata in his 1928 book The butterflies and moths of New Zealand.

[8]Hudson described the newly emerged larvae of this species as follows: The length of the newly-emerged larva is under 1-10th inch; it is stout, cylindrical, with the head and segment 2 very large, thence tapering to segment 5, and afterwards becoming slightly stouter; the anal flap is bifid, and the anal prolegs largely extended laterally; general colour bright yellow, slightly brownish on back, especially posteriorly; segmental divisions very distinct, deep yellow; a few very minute black warts.

He reared a variety of T. tipulata larvae to adulthood and confirmed their species upon the completion of each specimen's metamorphosis.

Abdomen cylindrical, slender, very long, especially in the male, extending in that sex for half its length beyond the hind wings, and nhaving a few black points on each side.

Fore wings long, narrow, slightly rounded at the tips, with several undulating irregular brown or blackish lines; middle space with two irregular approximate brownish bands; discal streak brown; fringe with pairs of black points; exterior border extremely oblique.

[7] T. tipulata can be distinguished as it has a Z-shaped basal line and lacks the conspicuous large pale patch near tornus of T. agrionata.

Robert Hoare has also stated that T. agrionata has is a very distinct black V on the forewing dorsum near the base that appears to be a distinguishing feature as it is not present on T. tipulata.

[7] The larval hosts of this species include Pterophylla racemosa, Nothofagus cliffortioides and Podocarpus totara with the larvae feeding on the leaves of these trees.

[11] The pupation has been observed as taking place in early February with the adults emerging at the end of that month.