Geometrid
Guides
Nemoria lixaria
Red-bordered Emerald
Nemoria lixaria, commonly known as the red-bordered emerald, is a small moth in the family Geometridae. It is recognized by its bright green coloration and distinctive red marginal banding on the wings. The species is widespread across North America and is frequently encountered by observers.
Nemoria zygotaria
Texas Emerald
Nemoria zygotaria, commonly known as the Texas Emerald, is a species of emerald moth in the family Geometridae. The species was described by George D. Hulst in 1886 under the basionym Aplodes zygotaria. It is assigned Hodges number 7040 in the North American moth numbering system. The species occurs in North America.
Neoalcis
Neoalcis is a monotypic genus of geometrid moths established by James Halliday McDunnough in 1920. It contains a single species, Neoalcis californiaria (brown-lined looper), described by Packard in 1871. The genus is endemic to western North America, where its sole species occurs along the Pacific coast from California to British Columbia.
Nepytia phantasmaria
phantom hemlock looper
Nepytia phantasmaria is a geometrid moth native to North America, described by Herman Strecker in 1899. It is commonly known as the phantom hemlock looper. The species is part of the looper moth group, with larvae that are defoliators of conifer foliage. Its activity patterns have been studied in relation to environmental conditions, showing associations with sunset and sunrise periods.
Operophtera bruceata
Bruce spanworm, Bruce Spanworm Moth, native winter moth, hunter's moth
Operophtera bruceata is a native North American geometrid moth commonly known as the Bruce spanworm. Females are wingless and flightless, while males have fully developed wings with a 25–30 mm wingspan. The species is notable for forming a documented clinal hybrid zone with the invasive congener winter moth (O. brumata) in the northeastern United States. Population outbreaks have caused significant defoliation of deciduous forests, with one outbreak in Alberta peaking in 1958 at approximately 50,000 square miles of moderate to heavy infestation.
Paleacrita vernata
Spring Cankerworm, Spring Cankerworm Moth
Paleacrita vernata is a geometrid moth known as the spring cankerworm. Males have functional wings and fly from February to late May, while females are wingless and climb tree trunks to lay eggs. The larvae are defoliators of deciduous trees and shrubs, with documented feeding on Acer, Ulmus, Betula, Prunus, and Quercus species. The species has been observed using flax as a secondary host, indicating broader host flexibility than previously recognized.
Pero pima
Pero pima is a species of geometrid moth described by Poole in 1987. It belongs to the family Geometridae, a large and diverse group commonly known as geometer moths or inchworms. The species is recorded from North America. It has been assigned MONA (Moths of North America) or Hodges number 6762.1.
Phaeoura cristifera
Phaeoura cristifera is a species of geometrid moth in the family Geometridae. It was first described by George D. Hulst in 1896. The species is known from North America and is assigned Hodges number 6764 in the North American Moth Photographers Group system. As a member of the subfamily Ennominae, it belongs to a diverse group of inchworm moths.
Pionenta
Pionenta is a genus of geometrid moths erected by Clifford D. Ferris in 2010. The genus was established during a revision of the related genus Antepione. It contains a single described species, Pionenta ochreata, originally described by Hulst in 1898. The genus belongs to the subfamily Ennominae within the family Geometridae.
Plagodis phlogosaria
scorched wing, straight-lined plagodis, Straight-lined Plagodis Moth
Plagodis phlogosaria is a geometrid moth widely distributed across North America. Adults have a wingspan of 28–38 mm and are active from April to August. Larvae feed on the foliage of several deciduous trees and shrubs. The species is recognized by six described subspecies with varying geographic ranges.
Probole amicaria
friendly probole, redcheeked looper, Friendly Probole Moth
Probole amicaria is a species of geometrid moth in the family Geometridae, commonly known as the friendly probole or redcheeked looper. It is native to North America and has been documented across a broad geographic range including Canadian provinces and northern United States. The species was originally described as Metrocampa amicaria by Herrich-Schäffer in 1855. It is assigned MONA/Hodges number 6838.
Prorella tremorata
Prorella tremorata is a small geometrid moth described by James Halliday McDunnough in 1949. It is known from California and Nevada in the western United States. Adults have been recorded in February, April, and October, suggesting either multiple generations or an extended flight period. The species remains poorly documented beyond basic collection records.
Psamatodes abydata
Dot-lined angle, Dot-lined and Dark-shaded Angles and Allies
Psamatodes abydata, commonly known as the dot-lined angle, is a geometrid moth native to the Neotropics and southern United States. The species has been introduced to the Pacific region, with established populations in Hawaii since 1970 and subsequent spread to other Pacific islands. It is recognized as a highly mobile species capable of regular northward dispersal beyond its core range. Taxonomic placement has shifted between the genera Psamatodes and Macaria, with current sources recognizing both names in use.
Pterospoda
Pterospoda is a genus of moths in the family Geometridae, first described by Harrison Gray Dyar Jr. in 1903. The genus contains three recognized species: Pterospoda kunzei, Pterospoda nigrescens, and Pterospoda opuscularia. All three species were originally described by George D. Hulst in the late 19th century. The genus belongs to the subfamily Ennominae, a diverse group of geometer moths.
Pterotaea plagia
Pterotaea plagia is a species of geometrid moth in the family Geometridae, subfamily Ennominae. Described by Rindge in 1970, this species belongs to a genus of North American geometrid moths. Records indicate it is present in North America. The genus Pterotaea contains multiple species of small to medium-sized moths, though specific details about P. plagia's biology remain poorly documented in available sources.
Sabulodes mabelata
Sabulodes mabelata is a species of geometrid moth in the family Geometridae, first described by Sperry in 1948. It is known to occur in North America. The species has been assigned the MONA/Hodges number 6999. Like other members of the genus Sabulodes, it belongs to the subfamily Ennominae, a diverse group of geometer moths.
Scopula ancellata
angled wave moth, pointed-winged wave
Scopula ancellata is a geometrid moth species first described by George Duryea Hulst in 1887. It is found across much of North America, from Quebec west to the Northwest Territories and British Columbia, and south to Michigan, Indiana, and Arizona. The species inhabits mixed wood and coniferous forests. Adults are small moths with a wingspan of approximately 23 mm. The larvae have been recorded feeding on Melilotus alba and Alnus tenuifolia.
Scopula frigidaria
Frigid Wave
Scopula frigidaria is a small geometrid moth distributed across boreal regions of northern Eurasia and North America. Adults have a wingspan of 21–23 mm and are active from late May through June. The species exhibits a univoltine life cycle with larvae feeding exclusively on bilberry (Vaccinium myrtillus). Larvae overwinter in the larval stage, with development spanning from July through May of the following year. Two subspecies are recognized: the nominate form and S. f. schoyeni restricted to the Kola Peninsula and Fennoscandia.
Scopula fuscata
Scopula fuscata is a moth in the family Geometridae, first described by George Duryea Hulst in 1887. It is distributed across western North America from southwestern Saskatchewan through British Columbia and southward to California and Arizona. The species inhabits montane environments including foothill regions. Adults have a wingspan of 24–28 mm.
Scopula lautaria
Small Frosted Wave, small frosted wave moth
Scopula lautaria, commonly known as the small frosted wave moth, is a species of geometrid moth described by Jacob Hübner in 1831. It is a member of the family Geometridae, which includes the inchworm moths, and belongs to the subfamily Sterrhinae. The species is distributed across parts of North America, particularly in the southeastern United States.
Scopula quadrilineata
Four-lined Wave Moth, four-lined wave
Scopula quadrilineata, commonly known as the four-lined wave, is a small moth in the family Geometridae native to North America. The species is characterized by its distinctive wing pattern featuring four lines, from which its common name is derived. It occurs across a broad range from eastern Canada through the Great Plains and south to the southeastern United States, with an isolated population recorded in British Columbia.
Sicya pergilvaria
Sicya pergilvaria is a species of geometrid moth described by Barnes and McDunnough in 1917. It belongs to the subfamily Ennominae within the family Geometridae. The species has been documented in North America with limited observation records. As a member of the genus Sicya, it is part of a small group of moths whose biology remains poorly documented in scientific literature.
Spargania magnoliata
Double-banded Carpet Moth
Spargania magnoliata, known as the double-banded carpet moth, is a geometrid moth in the subfamily Larentiinae. It is a medium-sized moth distributed across North America. The species has been assigned MONA/Hodges number 7312.
Stamnodes franckata
Stamnodes franckata is a species of geometrid moth in the subfamily Larentiinae. It was described by Pearsall in 1909, originally placed in the genus Coenocalpe. The species is known from North America and has been assigned MONA/Hodges number 7350. Documentation of this species is limited, with few observations recorded in biodiversity databases.
Stergamataea inornata
Stergamataea inornata is a species of geometrid moth in the family Geometridae, described by George D. Hulst in 1896. It belongs to the subfamily Ennominae, one of the largest and most diverse groups within the Geometridae. The species is characterized by its relatively plain or unadorned appearance, as suggested by its specific epithet "inornata" (meaning "unadorned" or "plain"). Very little detailed biological information has been published about this species.
Synchlora
Emerald moths, Wavy-lined emeralds
Synchlora is a genus of emerald moths in the family Geometridae, characterized by adults with leaf-green wings and larvae that exhibit remarkable camouflage behavior. Larvae actively adorn their bodies with pieces of host plants, creating a 'double cloak of invisibility' that makes them nearly indistinguishable from their surroundings. The genus name derives from Greek 'syn-' (with) and 'chlor' (green), referencing the green coloration of adults. Twelve species occur in North America, with S. aerata being the most widespread in the eastern United States.
Synchlora frondaria
southern emerald, wavy-lined emerald
Synchlora frondaria, commonly known as the southern emerald, is a species of emerald moth in the family Geometridae. The species is notable for its remarkable larval camouflage behavior, in which caterpillars decorate their bodies with plant material from their host plants. This self-decoration, combined with phenotypic plasticity in coloration, creates a 'double cloak of invisibility' that allows larvae to blend effectively into diverse backgrounds. The species occurs across a broad geographic range including the Caribbean, Central America, North America, and South America.
Synchlora noel
Synchlora noel is a species of emerald moth in the family Geometridae. It is one of approximately 12 species in the genus Synchlora found in North America. Like other members of the genus, its caterpillars are known for adorning their bodies with plant material from their host plants as camouflage. The species was described by Sperry in 1949.
Tacparia zalissaria
Tacparia zalissaria is a species of geometrid moth in the family Geometridae, described by Francis Walker in 1860. It is recorded from North America and assigned MONA/Hodges number 6805. The species belongs to the subfamily Ennominae, a diverse group of geometrid moths commonly known as inchworms or loopers due to their characteristic larval locomotion.
Tracheops bolteri
Tracheops bolteri is a species of geometrid moth in the family Geometridae, subfamily Ennominae. It was described by Hulst in 1896. The species is known from North America and has been documented at blacklight stations during bioblitz surveys in Colorado, including at Red Rock Canyon Open Space. Like other geometrid moths, adults are nocturnal and attracted to light sources.
Xanthorhoe decoloraria
Red Carpet
Xanthorhoe decoloraria, commonly known as the red carpet, is a small geometrid moth described by Eugenius Johann Christoph Esper in 1806. The species exhibits considerable wing pattern variation and is distributed across northern Europe, Asia, and North America, with southern populations restricted to mountainous regions. Adults are active during mid-summer, and larvae feed on Alchemilla species.
Xanthorhoe dentilinea
Xanthorhoe dentilinea is a species of carpet moth in the family Geometridae, first described by Barnes and McDunnough in 1913. It belongs to the subfamily Larentiinae, a diverse group of primarily nocturnal moths. The species is recorded from North America, though detailed biological information remains limited.