Late-summer-flight
Guides
Abagrotis dodi
Abagrotis dodi is a noctuid moth described by James Halliday McDunnough in 1927. It occurs in western North America from southern Yukon through the Rocky Mountain region to Utah, Colorado, Nevada, and Washington. Adults fly in late summer with a single annual generation. The species is known from relatively few observations.
Abagrotis nanalis
Abagrotis nanalis is a small noctuid moth described by Grote in 1881. It occurs in western North America from southern British Columbia to western North Dakota and south to northern New Mexico and California. Adults are active in late summer with a single annual generation in Alberta.
Agrotis rileyana
Riley's cutworm, Riley's dart moth
Agrotis rileyana is a species of cutworm moth in the family Noctuidae, described by Morrison in 1874. The species belongs to the genus Agrotis, a large group of noctuid moths commonly known as dart moths or cutworms whose larvae are significant agricultural pests. Adults are active in late summer. The species is native to North America with records from the Canadian prairie provinces.
Amphipyra glabella
Grey Amphipyra, Smooth Amphipyra
Amphipyra glabella is a noctuid moth found across eastern and central North America. Adults are active from August to September with one generation per year. The species was first described by Herbert Knowles Morrison in 1874. It is one of several Amphipyra species known as "amphipyra" moths, characterized by their stout bodies and cryptic coloration.
Apantesis behrii
Apantesis behrii is a tiger moth in the family Erebidae, first described by Stretch in 1872. The species occurs in the western United States from Oregon south through California, with highest abundance in the Siskiyou and Sierra Nevada mountain ranges. It inhabits dry, rocky mountain environments and has a narrow adult flight period from early August to late September. Larvae feed on specific host plants including Lotus humistratus and Amsinckia species. The species was transferred from the genus Grammia to Apantesis based on phylogenetic revision.
Brachylomia curvifascia
Brachylomia curvifascia is a noctuid moth first described by Smith in 1891. It is endemic to western North America, ranging from British Columbia to California. Adults are active in late summer, with flight records from August to September in California. The species belongs to the genus Brachylomia, a group of small to medium-sized moths within the subfamily Noctuinae.
Callistege triangula
Callistege triangula is a moth in the family Erebidae, first described in 1918. It occurs in the southwestern United States, with documented records from Arizona, New Mexico, and Texas. Adults are active during late summer, with flight records from August to September. The species has a wingspan of approximately 30 mm.
Catocala praeclara
Praeclara Underwing, Praeclara Underwing Moth
Catocala praeclara, commonly known as the Praeclara Underwing, is a moth in the family Erebidae. The species was described by Grote and Robinson in 1866. It is characterized by cryptic forewings that conceal brightly colored hindwings, a defensive trait common to underwing moths. Adults are active in late summer, and larvae feed on specific woody plants in the rose family.
Ceranemota albertae
Alberta lutestring
Ceranemota albertae is a moth in the family Drepanidae, described by John Frederick Gates Clarke in 1938. It is endemic to western Canada, with a range extending from south-central British Columbia to south-eastern Saskatchewan. Adults are active in late summer, with flight occurring from August to September. The species inhabits dry open woodlands and shrub areas where wild cherry grows.
Cochylichroa aurorana
Pink-mottled Cochylichroa Moth
Cochylichroa aurorana is a small tortricid moth native to the eastern and central United States. First described by Kearfott in 1907 as Phalonia aurorana, it was long classified under Cochylis before molecular phylogenetic studies led to its transfer to the redefined genus Cochylichroa in 2019. Adults are active in late summer and early autumn.
Dichagyris acclivis
Inclined Dart
Dichagyris acclivis, commonly known as the Inclined Dart, is a noctuid moth native to central and eastern North America. The species is of conservation concern in parts of its range, notably listed as a species of special concern in Connecticut. Adults are active in late summer and early autumn, with larvae specializing on seeds of switchgrass (Panicum virgatum).
Enargia decolor
Pale Enargia, Aspen Twoleaf Tier Moth
A noctuid moth with boreal-transcontinental distribution across North America, primarily associated with trembling aspen and related poplar species. Adults are active in late summer, with larvae capable of reaching outbreak densities that cause extensive defoliation of host stands. The species shows a disjunct western distribution pattern that may represent cryptic diversity.
Eupithecia neomexicana
Eupithecia neomexicana is a small pug moth in the family Geometridae described by James Halliday McDunnough in 1946. It occurs in the southwestern United States, specifically western New Mexico and Arizona. Adults are active in late summer, with flight records from late August to early September. The species belongs to a large genus of over 1400 species worldwide, commonly known as pugs for their compact resting posture.
Euxoa citricolor
Euxoa citricolor is a noctuid moth species described by Augustus Radcliffe Grote in 1880. The species is found in western North America, with a wingspan of 34–37 mm. Adults are active from August to September, with one generation per year. Larvae are likely cutworms, though specific host plant associations for this species are not well documented.
Euxoa dargo
Euxoa dargo is a noctuid moth species described by Ferdinand Heinrich Hermann Strecker in 1898. It occurs in western North America from south-eastern Manitoba to the southern interior of British Columbia, south to Oregon, southern Idaho, and northern New Mexico, and east to eastern South Dakota. Adults are active from August to September with one generation per year. The species is known to be associated with agricultural settings, with larvae recorded feeding on corn and Salsola species.
Hydraecia medialis
Hydraecia medialis is a noctuid moth native to western North America. Adults are active from mid-August through September and are characterized by pale gray-tan forewings with a darker, often reddish median area and distinctive red-brown or brown and white postmedial line. The species inhabits open ponderosa pine forests, drier sagebrush steppe, and juniper woodlands across a range extending from British Columbia to northern New Mexico.
Lithophane atara
Lithophane atara is a noctuid moth described by Smith in 1909. The species has a forewing length of approximately 18–20 mm. Adults are active in late summer, with flight records from August to September. Larvae are specialized feeders on Pinus species, specifically lodgepole pine and ponderosa pine. The species is restricted to western Canada.
Nepytia canosaria
False Hemlock Looper Moth, false hemlock looper
Nepytia canosaria is a North American geometrid moth commonly known as the false hemlock looper. The species occurs across a broad transcontinental range from northeastern Alberta to the Atlantic provinces, extending south through New England. Adults are active in late summer, with flight records from August through September. The larval stage feeds primarily on conifers including balsam fir, eastern hemlock, and various spruce species.
Nudorthodes variabilis
Nudorthodes variabilis is a noctuid moth described by Barnes and McDunnough in 1912. It is restricted to the coastal region of southern California, ranging from Santa Barbara County to San Diego County. The species is characterized by distinctive forewing markings, including a prominent medial line and a well-defined dark blue-gray patch in the lower portion of the reniform spot. Adults are active in late summer, with flight records from late August to mid-September.
Phryxus caicus
Caicus Sphinx
Phryxus caicus is a sphinx moth and the sole species in its genus. It occurs primarily in the Neotropics with occasional records from the southeastern United States. Adults fly mainly during late summer and fall in temperate regions, though activity may continue year-round in tropical areas. Larvae feed on plants in the dogbane family.
Protorthodes eureka
Protorthodes eureka is a small noctuid moth described by Barnes and Benjamin in 1927. It inhabits arid western North American habitats including sagebrush prairie and pinyon-juniper woodlands. Adults are active in late summer and early autumn. The species is characterized by distinctive reddish-brown forewings with dark longitudinal streaking and arrowhead-shaped subterminal spots.
Schinia brunnea
A noctuid moth species described in 1913, restricted to desert regions of southern California. Adults fly from late summer to early fall. Very little is known about its biology beyond basic distribution and phenology.
Thaumatopsis pexellus
Woolly Grass-veneer, Woolly Grass-veneer Moth
Thaumatopsis pexellus is a grassland moth in the family Crambidae, commonly known as the woolly grass-veneer. It occurs across most of North America and is active during late summer. The species was described by Philipp Christoph Zeller in 1863. Multiple subspecies have been recognized, including forms restricted to Colorado, California, Alberta, and Mexico.