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. Geometridae is a very large family, containing around 23,000 described species; over 1400 species from six subfamilies are indigenous to North America alone. A well-known member is the peppered moth, Biston betularia, which has been the subject of numerous studies in population genetics. Several other geometer moths are notorious pests.
Catocala parta, the mother underwing, is a moth of the family Erebidae. The species was first described by Achille Guenée in 1852. It is found in North America from Nova Scotia south to Maryland and Kentucky, west to southern Saskatchewan and Alberta, western Montana, and Utah. The wingspan is 70–78 mm. Adults are on wing from August to September depending on the location.
Catocala meskei, or Meske's underwing, is a moth of the family Erebidae. The species was first described by Augustus Radcliffe Grote in 1873. It is found in North America from Maine and Quebec west to southern Alberta and Montana, south to South Carolina in the east and at least Montana in the west.
Catocala concumbens, the sleepy underwing or pink underwing, is a moth of the family Erebidae. The species was first described by Francis Walker in 1858. It is found in eastern North America, west across the southern half of the Prairie Provinces to eastern Alberta.
Catocala briseis, the Briseis underwing or ribbed underwing, is a moth of the family Erebidae. The species was first described by William Henry Edwards in 1864. It is found across the North American Boreal forest region from Newfoundland to the Pacific, south to Massachusetts and Pennsylvania.
Catocala junctura, the joined underwing or Stretch's underwing, is a moth in the family Erebidae. The species was first described by Francis Walker in 1858. It is found throughout temperate North America, ranging from New York and Pennsylvania west to Montana, Colorado, Oklahoma, Arizona, and into Texas, and north to southern Illinois, extreme southern Alberta and Saskatchewan; it has also been recorded west of the Rocky Mountains from California and south-eastern British Columbia. It is typically found near water, where the food plants of its caterpillar larvae grow plentifully.
Catocala relicta, the white underwing or relict, is a moth of the family Erebidae. The species was first described by Francis Walker in 1858. It lives in southern Canada, from Newfoundland to Vancouver Island, south to Missouri, and Arizona.
Catocala unijuga, the once-married underwing, is a moth of the family Erebidae. The species was first described by Francis Walker in 1858. It is found in North America from Newfoundland west to south central British Columbia, south to Kentucky and Missouri in the east, Colorado and Utah in the west.
Apamea commoda, the southern Quaker, is a moth of the family Noctuidae. The species was first described by Francis Walker in 1857. It is native to North America, where it is distributed from Nova Scotia west across southern Canada to southern British Columbia, north to Alaska and Yukon Territory, and south at least into Manitoba.
Apamea inficita, the lined Quaker is a moth of the family Noctuidae. The species was first described by Francis Walker in 1857. It is native to North America, where it can be found from Newfoundland west to British Columbia, north to the Yukon and the Northwest Territories, and south to Colorado.
Pyrrhia exprimens, the purple-lined sallow, is a moth of the family Noctuidae. The species was first described by Francis Walker (entomologist) in 1857. In North America it is found from Newfoundland and Labrador west across southern Canada to southern Vancouver Island, south to Texas, Arizona and California. Outside of North America it is found in Finland, the West Siberian plain, the South Siberian Mountains and Kazakhstan.
Eulithis testata, the chevron, is a moth of the family Geometridae. The species was first described by Carl Linnaeus in 1761. It is found in both the Palearctic and the Nearctic realms. In the Palearctic it ranges from Great Britain and Scandinavia, south to the Alps, east through Russia and the Russian Far East to Japan. In North America, it is found from Newfoundland to Vancouver Island and Alaska, south in the east to about New Jersey and in the west to Colorado.
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.
Fishia illocata, the wandering brocade, is a moth of the family Noctuidae. The species was first described by Francis Walker in 1857. It is found from coast to coast in North America. It is abundant in the wet coastal forests and in wet conifer forests of the northern Rocky Mountains.
Metanema inatomaria, the pale metanema or yellow-lined thorn, is a moth of the family Geometridae. The species was first described by Achille Guenée in 1857. It is found from east-central British Columbia and southern Northwest Territories and Yukon, east to Nova Scotia, south to Mississippi, Texas and Arizona.
Acleris maccana, the marbled dog's-tooth tortrix, is a moth of the family Tortricidae. The species was first described by Georg Friedrich Treitschke in 1835. It is found from Europe, east across the boreal regions to Siberia. In North America it occurs across much of the boreal forest region, south in the mountains in the east.
Macaria loricaria, the false Bruce spanworm or Eversmann's peacock, is a moth of the family Geometridae. It is found from Fennoscandia and the Baltic states to Sakhalin. It is also found in North America, where it is found from Alaska to Newfoundland and New York, south to Colorado.
Furcula cinerea, the gray furcula moth, is a species of moth in the family Notodontidae. It was first described by Francis Walker in 1865. It is found in the United States, southern Canada and the Northwest Territories.
Lycia ursaria, the stout spanworm moth or bear, is a moth of the family Geometridae. The species was first described by Francis Walker in 1860. It is found in southern Canada and the northern United States, south to New Jersey and Iowa.
Phaeoura quernaria, the oak beauty, is a moth of the family Geometridae. The species was first described by James Edward Smith in 1797. It is found in eastern North America, occurring as far west as east-central Alberta. The habitat consists of aspen-cherry shrubland.
