The geometer moths are moths belonging to the family Geometridae of the insect order Lepidoptera, the moths and butterflies. Their scientific name derives from the Ancient Greek geo γεω, and metron μέτρον "measure" in reference to the way their larvae, or inchworms, appear to measure the earth as they move along in a looping fashion. A very large family, it has around 23,000 species of moths described, and over 1400 species from six subfamilies indigenous to North America alone. A well-known member is the peppered moth, Biston betularia, which has been subject of numerous studies in population genetics. Several other geometer moths are notorious pests.
Eumacaria is a monotypic moth genus in the family Geometridae described by Packard in 1873. Its only species, Eumacaria madopata, the brown-bordered geometer moth, was first described by Achille Guenée in 1857. It is found in North America, where it has been recorded from British Columbia, northern Washington, southern Saskatchewan, from Maine to Florida, South Dakota, North Dakota, Nebraska, Wyoming, Idaho, Colorado and New Mexico. The habitat consists of orchards and shrublands. The species is listed as threatened in Connecticut.
Tetracis is a genus of moths in the family Geometridae erected by Achille Guenée in 1858.
Euchlaena tigrinaria, the mottled euchlaena, is a moth of the family Geometridae. The species was first described by Achille Guenée in 1857. It is found from New Brunswick to Virginia, west to Texas, Utah and Oregon, north to British Columbia.
Tetracis australis is a moth of the family Geometridae. It is found from the coastal southern regions of the U.S. state of California from Monterey County south to Los Encinas, San Pedro Martir, Baja California, Mexico, at altitudes from near sea level to 2,135 meters.
Tetracis cachexiata, the white slant-line or white slaut, is a moth of the family Geometridae. The species was first described by Achille Guenée in 1858. It is found in North America from Nova Scotia to central British Columbia, south to northern Florida and west to Montana and northern Colorado.
Tetracis cervinaria is a moth of the family Geometridae first described by Alpheus Spring Packard in 1871. It is found in North America from British Columbia south to Kern County, California and eastward to western Montana, south-eastern Idaho, Carbon County, Wyoming and Larimer County, Colorado. It is found at elevations of 790 to 2,375 meters.
Tetracis fuscata is a moth of the family Geometridae first described by George Duryea Hulst in 1898. It is only known from the US states of Colorado and Wyoming.
Tetracis pallulata is a moth of the family Geometridae first described by George Duryea Hulst in 1887. It is found in western North America from southern California north to British Columbia, east to Idaho and western Montana from near sea level to 2,200 meters.
Tetracis mosesiani is a moth of the family Geometridae. It is found coastal California from near sea level to 915 meters.
Tetracis jubararia is a moth of the family Geometridae. It is found in North America.
Tetracis montanaria is a moth of the family Geometridae. It is only known from south-eastern Arizona. It is found in aspen-coniferous forests on altitudes between 2,440 and 2,715 meters.
Tetracis barnesii is a moth of the family Geometridae. It is found from the high-desert riparian canyons in Colorado and Utah to the dry coniferous forest in Oregon on altitudes between 1,555 and 1,905 meters.
Tetracis formosa is a moth of the family Geometridae first described by George Duryea Hulst in 1896. It is found in North America from Colorado, eastern Utah and eastern Wyoming west to California and north to southern British Columbia and southern Alberta at elevations between 870 and 2,320 meters.
Tetracis hirsutaria is a moth of the family Geometridae first described by William Barnes and James Halliday McDunnough in 1913. It is found in the United States in California and extreme southern Nevada.
Tetracis pallidata is a moth of the family Geometridae first described by Clifford D. Ferris in 2009. It is found in British Columbia, Idaho and Washington.
Pseudoterpna coronillaria, the Jersey emerald or gorse emerald, is a moth of the family Geometridae. The species was first described by Jacob Hübner in 1796. It is known from Spain, Portugal, the Pyrenees, western and southern France, Corsica, Sardinia, Sicily, Italy, Samos, Rhodes, Turkey, Israel, Lebanon, northern Jordan and North Africa. It has not been reported from mainland Great Britain, but is present on Jersey, where it was previously overlooked as a form of the grass emerald, until 2001 when it was correctly identified.
Pleuroprucha insulsaria, the common tan wave moth, is a moth of the family Geometridae. The species was first described by Achille Guenée in 1857. It is found in eastern North America, from Nova Scotia to Florida, west to Texas and Colorado and north to Ontario. It ranges south through Mexico and Central America into South America and has been recorded as far south as the Galápagos Islands. It has also been recorded from the West Indies, including Jamaica.
Scopula purata, the chalky wave, is a moth of the family Geometridae. The species was first described by Achille Guenée in 1858. It is found in eastern North America, from Ontario and New Hampshire to Florida and to Mississippi.
Eupithecia subapicata is a moth in the family Geometridae first described by Achille Guenée in 1857. It is found in the western United States from California through Oregon to Washington.
