The latticed heath (Chiasmia clathrata) is a moth of the family Geometridae, belonging to the subfamily Ennominae, placed in the tribe Macariini.

The current placement of the latticed heath in the genus Chiasmia follows from the revision by Malcolm J. Scoble (2002) of the tribe Macariini, when he showed that true Semiothisa species were restricted to the Americas.

[4][5] These moths inhabit a range of open areas, including grassland, moorland, and waste ground.

[6] In this rather variable species the background colour of the wings varies from yellowish to white, with a network of brown lines (hence its common name).

[11] Larvae feed on bedstraws (Galium mollugo, Galium verum) and various legumes such as clovers (Trifolium medium, Trifolium pratense), trefoils, lucerne (Medicago sativa) [6][2] and meadow vetchling, primarily in June and July and from mid-August through September, though in Ireland and northern Britain larvae occur in July and August.