Alpine
Guides
Formica neorufibarbis
New World Red Bearded Ant
Formica neorufibarbis is an alpine ant species in the genus Formica, described by Emery in 1893. Research indicates this species exhibits worker size polymorphism that affects colony fitness, with colonies showing mean worker head widths ranging from 0.89–1.24 mm. The species has been studied for its nest site selection behavior at high elevations, specifically its use of rock versus soil substrates. It belongs to the fusca group within Formica and has been documented in montane environments of the western United States, including the Sierra Nevada.
Gelechiidae
twirler moths, gelechiid moths
Gelechiidae is a large family of small moths, commonly known as twirler moths, that serves as the namesake family for the superfamily Gelechioidea. The family contains over 4,500 described species across more than 900 genera, with particularly high diversity in North America. Members are characterized by their small size, narrow fringed wings, and larvae that typically feed internally on host plant tissues. Many species are significant agricultural pests, while others have been employed for biological control of invasive plants.
Grylloblatta chintimini
Marys Peak Ice Cricket, rock crawler
Grylloblatta chintimini is a species of rock crawler (family Grylloblattidae) described in 2015 from Marys Peak in the Oregon Coast Range. It is one of the most recently described species in this relict insect order, bringing the total number of Grylloblatta species to 15. The species occurs in a restricted alpine habitat on persistent snowpack near the 1250 m summit. Like other grylloblattids, it is adapted to cold, moist environments and is considered a living fossil representing one of the most basal lineages of winged insects.
Grylloblattidae
ice crawlers, icebugs, rock-crawlers
Grylloblattidae, commonly known as ice crawlers or icebugs, is a family of wingless, cold-adapted insects representing the sole living family of the order Grylloblattodea. These relict insects inhabit extreme cold environments including glacier margins, alpine snowfields, caves, and subalpine forests across disjunct regions of the Holarctic. With approximately 35 extant species in six genera, they exhibit narrow physiological temperature tolerances and are considered endangered due to climate warming and habitat specificity.
Gynaephora
Arctic woolly bear moths, grassland caterpillars (Qinghai-Tibetan Plateau species)
A genus of tussock moths (Lymantriinae: Erebidae) distributed across the Holarctic in alpine, Arctic, and Subarctic regions. Best known for exceptionally slow larval development, with some species requiring multiple years to complete their life cycle. Females are flightless or nearly so, while males are strong fliers that actively search for mates. The genus includes both Arctic species (e.g., G. groenlandica, G. rossii) and high-altitude Asian species (e.g., G. alpherakii, G. menyuanensis) that are significant pests of alpine meadows on the Qinghai-Tibetan Plateau.
Gynaephora rossii
Ross' tussock moth
Gynaephora rossii is a cold-adapted tussock moth distributed across the Holarctic tundra and alpine regions. The species is notable for its extended larval development period of 7–11 years and its ability to survive freezing temperatures. Adults are active during daylight hours in summer, with males actively searching for females while females are largely sedentary. The caterpillars feed primarily on Saxifraga species and certain willows.
Hahnia glacialis
Hahnia glacialis is a species of dwarf sheet spider in the family Hahniidae, first described by Sørensen in 1898. It is among the smallest members of its family, with adult body lengths under 4 millimeters. The species has a Holarctic distribution, occurring in cold-adapted regions of northern North America and Eurasia. Like other hahniids, it possesses the distinctive comb-like arrangement of spinnerets that gives the family its common name.
Hebardacris
Mount Whitney grasshopper (for H. albida)
Hebardacris is a genus of spur-throated grasshoppers in the family Acrididae, established by Rehn in 1952. The genus contains at least three described species: H. albida (Mount Whitney grasshopper), H. excelsa, and H. mono. These species are native to western North America, with records concentrated in California. The genus belongs to the tribe Podismini within the subfamily Melanoplinae.
Herbertiidae
Herbertiidae is a family of chalcidoid wasps elevated from subfamily status in 2022 based on molecular, morphological, and life history data. The family contains three genera—Herbertia, Exolabrum, and the extinct Versolabrum—with approximately ten species worldwide. These small, dark wasps are parasitoids associated with hosts in multiple insect orders.
Himalopsyche
Himalopsyche is a genus of free-living caddisflies in the family Rhyacophilidae, containing more than 40 described species. The genus is primarily distributed in alpine to montane environments across Central and East Asia and North America, with its greatest diversity concentrated in the Himalayas and surrounding mountain ranges. Species within the genus have been divided into five morphological groups: kuldschensis, lepcha, navasi, phryganea, and tibetana. The genus has served as a model system for studying mountain biodiversity, gene flow, and the mountain-geobiodiversity hypothesis due to its endemic distribution in geologically dynamic regions.
caddisflyRhyacophilidaemountain-biodiversityTibeto-Himalayanaquatic-insectphylogeographygenome-assemblyindicator-speciesgene-flowHengduan-MountainsHimalayasalpinemontanerunning-waterfree-living-caddisflycocoon-makerpredatory-larvaewater-quality-monitoringadaptive-evolutionmountain-geobiodiversity-hypothesisHimalopsyche phryganea
Himalopsyche phryganea is a free-living caddisfly species in the family Rhyacophilidae, first described by Ross in 1941. Molecular phylogenetic studies have established it as the sole member of the phryganea species group within the genus. The species is known from North America, though the genus Himalopsyche is predominantly distributed in alpine to montane regions of Central and East Asia.
Kessleria
Kessleria is a genus of small moths in the family Yponomeutidae, first described by Nowicki in 1864. The genus contains approximately 35 recognized species distributed primarily across the Palearctic region, with additional species found in Madagascar, New Guinea, and Japan. Many species exhibit narrow geographic ranges and are associated with high-elevation or insular habitats. The genus has been subject to significant taxonomic revision, particularly by Huemer and colleagues, who used DNA barcoding to clarify species boundaries.
Lasionycta caesia
Lasionycta caesia is a noctuid moth restricted to high-elevation alpine habitats in the Pacific Northwest. It was described in 2009 as part of a comprehensive revision of the genus Lasionycta. The species occurs exclusively in rocky alpine tundra near tree line in the Cascade Mountains of northern Washington and the British Columbia Coast Range, extending north to 58° latitude. Adults are active for a brief period from mid-July to mid-August.
Lasionycta leucocycla
Lasionycta leucocycla is a noctuid moth with a broad Holarctic distribution spanning Scandinavia, Siberia, and northern North America. Adults are active from June to July and have been observed feeding on nectar from specific flowering plants. The species exhibits notable subspecific variation across its range, with multiple described subspecies, some of which may represent distinct species.
Lasionycta luteola
Lasionycta luteola is a small noctuid moth with a wingspan of approximately 27 mm. It inhabits alpine tundra environments in northwestern North America, ranging from northern Washington and southwestern Alberta northward to southwestern Yukon. Adults are active from mid-July to mid-August and exhibit a distinctive activity pattern: while predominantly nocturnal, they also fly during daylight hours. The species has been observed feeding on nectar of Silene acaulis, a cushion-forming alpine plant.
Lasionycta poca
Lasionycta poca is a noctuid moth described by Barnes and Benjamin in 1923. It occurs in alpine and subalpine habitats of the Rocky Mountains and Cascade Range in western North America. The species is predominantly found near timberline, with occasional records from adjacent forest habitats. Adults are active from mid-June through August.
Liodessus
Liodessus is a genus of small diving beetles in the family Dytiscidae, tribe Bidessini. Species occur across the Americas from North America through the Andes to southern South America, with notable diversity in high-altitude wetlands and páramo ecosystems. Many species inhabit shallow, exposed pools and temporary water bodies, showing phenotypic plasticity in body form correlated with habitat permanence. The genus contains numerous species, with several new species described from the high Andes of Peru and Colombia in recent years. Taxonomic resolution relies heavily on male genital morphology.
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large twirler moths
Megacraspedus is a genus of small to medium-sized moths in the family Gelechiidae, commonly known as large twirler moths. The genus is primarily Palearctic in distribution and has undergone significant taxonomic revision, with 44 new species described in 2018 alone. Members are characterized by relatively short wings, protruding labial palps, and frequent female flightlessness. Many species inhabit high-elevation mountain habitats up to 3,000 meters.
Melanoplus frigidus
Nordic mountain grasshopper, narrow-winged locust, High Mountain Grasshopper
Melanoplus frigidus is an alpine grasshopper species in the family Acrididae, native to northern Europe and Asia. It is a true alpine specialist restricted to high-elevation habitats in the Scandes and similar mountain systems. Research has focused on its sensitivity to temperature variation as a potential indicator of climate change effects on alpine ecosystems.
Melanoplus montanus species group
The Melanoplus montanus species group comprises a complex of closely related short-horned grasshoppers within the genus Melanoplus, characterized by montane and subalpine distributions across western North America. These species share morphological similarities that have historically complicated taxonomic boundaries, with members often distinguished by subtle differences in male genitalia and subtle coloration patterns. The group includes multiple named species that occupy overlapping elevational ranges and share ecological preferences for cooler, higher-elevation habitats.
Melanoplus oreophilus
Mount Hood Short-wing Grasshopper
Melanoplus oreophilus is a spur-throated grasshopper species endemic to the Mount Hood region of Oregon. The species is characterized by reduced wing development, a trait reflected in its common name. It inhabits high-elevation alpine environments and has a restricted geographic range.
Meris
Meris is a genus of geometer moths in the family Geometridae, subfamily Ennominae. The genus was established by George Duryea Hulst in 1896. It contains five described species, all restricted to western North America. The genus is characterized by distinctive wing patterns and is part of a diverse group of inchworm moths.
Metaxmeste nubicola
The Tundra Moth
Metaxmeste nubicola is a species of moth in the family Crambidae, first described by Eugene G. Munroe in 1954. It is known from high-elevation localities in western North America, specifically Colorado and Washington. The species is associated with arctic-alpine environments, reflected in its common name 'The Tundra Moth'. As a member of the subfamily Odontiinae, it belongs to a group of small to medium-sized crambid moths.
Nalassus
A genus of darkling beetles (Tenebrionidae) comprising more than 70 species distributed across the Palearctic and North America. Species occupy diverse habitats from coniferous forests to alpine zones and steppe landscapes. The genus exhibits pronounced ecological specialization, with distinct species groups adapted to forest, alpine, or steppe environments and corresponding trophic niches.
Nebria
Gazelle Beetles
Nebria is a large genus of ground beetles (Carabidae) comprising over 500 described species distributed across the Palearctic, Near East, and North Africa. Members are commonly known as Gazelle Beetles. The genus exhibits notable diversity in alpine and montane habitats, with many species showing flightlessness and narrow endemic ranges. Species-level taxonomy relies heavily on male genitalia morphology and geometric morphometrics of external features such as the pronotum.
Nebria lituyae
Lituya's gazelle beetle
Nebria lituyae, known as Lituya's gazelle beetle, is a ground beetle species in the subfamily Nebriinae. It is endemic to a restricted alpine region spanning Alaska and British Columbia. The species inhabits moist ground on hill summits at high elevations. Adults are brachypterous (short-winged), nocturnal, and carnivorous.
Nebria suturalis
seamed gazelle beetle
Nebria suturalis, commonly known as the seamed gazelle beetle, is a flightless ground beetle in the family Carabidae. The species exhibits wing dimorphism with both forms incapable of flight. Adults are strictly nocturnal and carnivorous. It is restricted to high-elevation habitats, occurring on mountain tops across a disjunct range in northeastern North America and the Rocky Mountains.
Nebria vandykei
Van Dyke's gazelle beetle
Nebria vandykei is an alpine ground beetle in the family Carabidae, endemic to the Pacific Northwest of North America. Adults are brachypterous (short-winged), nocturnal, and carnivorous. The species occupies a specialized niche along stream margins and snowfield edges, habitats subject to extreme environmental stress. Research indicates this species has undergone adaptive evolution in response to cold, heat, and desiccation stress, with selection acting on stress response pathways despite a history of rapid demographic shifts.
Nippononebria
Nippononebria is a genus of ground beetles (Carabidae) comprising approximately eight described species. The genus exhibits a disjunct distribution with species in Japan, China, and western North America. North American lineages have undergone rapid speciation within the last million years, accompanied by ecological divergence into alpine habitats and convergent shifts in body shape and thermal tolerance.
Ochlerotatus pullatus
Ochlerotatus pullatus is a boreoalpine mosquito species with a discontinuous Holarctic distribution. In eastern North America, it has been recorded from alpine and subalpine habitats, with a notable range extension documented in the Chic-Chocs mountains of eastern Québec. The species develops in temporary snowmelt pools at elevations around 1000 m, where it can be locally dominant. Its presence in disjunct mountain populations has been discussed in relation to postglacial dispersal patterns.
Odontiinae
Odontiinae is a subfamily of moths in the family Crambidae, containing approximately 100 genera organized into three tribes: Hercynini, Eurrhypini, and Odontiini. The subfamily exhibits a distinctive biogeographic pattern with exceptional diversity in arid and semi-arid regions, particularly in southwestern North America and western/central Asia. North American species show strong southwestern eremic specialization, with 34 of 57 species restricted to arid habitats, contrasting with depauperate eastern faunas. The group includes both widespread temperate species and highly restricted endemics in alpine and desert environments.
Oeneis
Arctics, graylings
Oeneis is a genus of butterflies in the subfamily Satyrinae, commonly known as the Arctics or graylings. Members of this genus are remarkable for their adaptation to extreme cold environments, with most species restricted to Arctic, sub-Arctic, or high-altitude alpine habitats. The genus exhibits a disjunct distribution across the Northern Hemisphere, with species found in Europe, Arctic Russia, Siberia, Mongolia, Arctic North America, and the Rocky Mountains. Many species have biennial life cycles, with development typically spanning two years. The genus comprises approximately 32 recognized species arranged into several species groups based on phylogenetic relationships.
Oeneis bore
white-veined Arctic, Arctic grayling
Oeneis bore is a circumpolar butterfly in the subfamily Satyrinae, occurring across Arctic regions of North America and Eurasia. It inhabits cold, open environments including tundra, taiga, and alpine slopes. The species exhibits sexual dimorphism in wing coloration and is univoltine with a two-year life cycle in many populations. Larvae feed on sedges and grasses, while adults nectar on available flowers.
Oeneis jutta ascerta
Oeneis jutta ascerta is a subspecies of Arctic butterfly in the genus Oeneis, described by Masters and Sorensen in 1968. Like other members of the genus Oeneis, it is associated with high mountain and alpine habitats. The subspecies is part of a group of butterflies commonly known as "Arctics" that occur across western North America, Canada, and Alaska. Oeneis jutta ascerta has been documented in both North America and parts of Europe, including Belarus.
Oeneis jutta balder
Oeneis jutta balder is a subspecies of Arctic butterfly in the family Nymphalidae. It belongs to the genus Oeneis, a group associated with high mountain habitats across western North America, Canada, and Alaska. The subspecific name has been attributed to both Guérin-Méneville (1832) and Hübner (1837) in different sources, reflecting taxonomic complexity. Distribution records indicate presence in Europe, Belarus, and North America.
Oeneis melissa
Melissa Arctic
Oeneis melissa, the Melissa Arctic, is a Holarctic butterfly species in the family Nymphalidae. It inhabits cold, high-elevation and high-latitude environments including arctic tundra and alpine zones. The species exhibits a biennial or partially biennial life cycle adapted to short growing seasons. Multiple subspecies have been described across its range, including the endemic O. m. semidea in the White Mountains of New Hampshire.
Oeneis philipi
Philip's Arctic
Oeneis philipi, known as Philip's Arctic, is a species of butterfly in the family Nymphalidae described by Troubridge in 1988. It belongs to the genus Oeneis, commonly referred to as the Arctics, which are associated with high mountain habitats across western North America. The species is part of a group that has been noted for its ecological sensitivity to habitat disturbance, including wildfire. Like other Oeneis species, it likely exhibits the reduced wing patterns and cryptic coloration characteristic of alpine butterflies.
Oreoneta
A genus of dwarf spiders (family Linyphiidae) established in 1894, comprising approximately 30 species distributed across cold-temperate and Arctic regions of the Northern Hemisphere. Most species inhabit high-latitude or high-altitude environments. The genus was revised extensively by Saaristo & Marusik in 2004, resulting in numerous new species descriptions.
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dwarf spiders
Oreonetides is a genus of dwarf spiders in the family Linyphiidae, first described by Embrik Strand in 1901. The genus contains 17 described species distributed across the Northern Hemisphere, with records from North America, Europe, Russia, and East Asia. Species occupy diverse habitats ranging from boreal and alpine regions to temperate forests. The type species, Oreonetides vaginatus, has the broadest distribution, spanning from North America across Eurasia to Japan.
Panurginus
mining bees
Panurginus is a genus of mining bees in the family Andrenidae, with more than 50 described species distributed across the Holarctic region. Species occur in diverse habitats including alpine zones of Central Europe, the Siberian taiga, and steppe regions of Central Asia. Some species, such as P. herzi and P. montanus, are morphologically very similar and require quantitative measurements for reliable identification. The genus exhibits variable pollen host specialization, with individual species ranging from narrow specialists to broad generalists.
Parnassiinae
snow Apollos, Parnassians
Parnassiinae is a subfamily of swallowtail butterflies (Papilionidae) comprising approximately 50 medium-sized species. Members are predominantly white or yellow in coloration and are strongly associated with high-altitude mountain habitats across the Northern Hemisphere. The subfamily is divided into three tribes: Luehdorfiini, Parnassiini, and Zerynthiini. Phylogenetic studies indicate the group originated in the late Paleocene (ca. 57 Ma) in the Western Palearctic and Western Asia, with subsequent diversification and dispersal to Central Asia, the Himalayas, and North America.
Parnassius
Apollos, snow Apollos
Parnassius is a genus of cold-adapted butterflies found in northern circumpolar regions and high-elevation montane habitats including the Alps and Himalayas. These butterflies exhibit altitudinal melanism—dark bodies and darkened wing bases that facilitate rapid solar warming in cold environments. Despite belonging to the swallowtail family Papilionidae, they lack the characteristic tail extensions. The genus comprises 38–47 disputed species and serves as an important model system for studying metapopulation dynamics, population genetics, and thermal ecology in the context of climate change.
Parnassius clodius
Clodius Parnassian, American Apollo
Parnassius clodius is a cold-adapted white butterfly in the snow Apollo genus, found in western North America from sea level to alpine zones. It inhabits diverse environments including coastal forests, sagebrush meadows, and subalpine habitats. The species is a model organism for studying thermal ecology and climate change impacts on high-elevation insects. Adults are poor dispersers with limited gene flow between populations. Larvae are specialized herbivores of Dicentra species and exhibit behavioral thermoregulation.
Parnassius clodius strohbeeni
Strohbeen's Parnassian
Parnassius clodius strohbeeni is a subspecies of the American Apollo butterfly, a cold-adapted member of the snow Apollo genus in the swallowtail family. As part of the Parnassius clodius species complex, this subspecies inhabits high-elevation environments in western North America. The species is notable for its physiological adaptations to cold climates, with research indicating that overwintering eggs can survive temperatures as low as -30°C. Like other Parnassius species, it is considered vulnerable to climate change due to its specialized alpine habitat requirements and limited dispersal ability.
Parnassius eversmanni
Eversmann's parnassian
Parnassius eversmanni, or Eversmann's parnassian, is a high-altitude butterfly in the swallowtail family Papilionidae. It occurs across a broad transcontinental range spanning eastern Russia, Mongolia, Japan, Alaska, and the Yukon. The species was named in honor of Eduard Friedrich Eversmann. Like other Parnassius species, it exhibits complex wing pattern variation with numerous described subspecies and forms, making identification challenging without examination of structural characters.
Parnassius smintheus
Rocky Mountain parnassian, Rocky Mountain apollo
Parnassius smintheus is a high-altitude butterfly endemic to the Rocky Mountains of North America. It inhabits alpine and subalpine meadows where it depends on Sedum lanceolatum as its primary larval host plant. The species exhibits pronounced sexual dimorphism in behavior: males are highly mobile and patrol meadows for females, while females are relatively sedentary and search for oviposition sites primarily by crawling. Population dynamics are strongly influenced by early-winter weather conditions, particularly November temperature extremes and snowfall, which affect overwintering egg survival. Climate change poses significant threats through rising treeline and altered snowpack patterns.
Patrobini
Patrobini is a tribe of ground beetles (Carabidae) established by Kirby in 1837. Members include subtribe Deltomerodina, which contains genera such as Deltomerodes characterized by slender medium-sized bodies (8.5–12.0 mm), dorsally pubescent tarsi, and distinctive genitalia morphology. The tribe occurs in alpine and high-elevation habitats across the Himalayas and adjacent regions.
Phlaeopterus
Phlaeopterus is a genus of omaliine rove beetles containing 22 species distributed across northwestern North America and eastern Asia. The genus exhibits notable evolutionary transitions in body size, with two independent origins of large-bodied adults (exceeding 5 mm) from a small-bodied common ancestor. Large-bodied species are exclusively associated with alpine snowfield habitats, though statistical support for this correlation remains unconfirmed. The genus is monophyletic based on combined molecular and morphological phylogenetic analyses.
Pimoidae
Large Hammock-web Spiders
Pimoidae is a small family of araneomorph spiders established by Wunderlich in 1986, closely related to Linyphiidae and sometimes treated as synonymous with that family. As re-circumscribed in 2021, it is monophyletic and contains approximately 90 species in two genera, primarily Pimoa and Weintrauboa. Members are commonly known as large hammock-web spiders due to their substantial size relative to linyphiids and their horizontal, net-like webs. The family has a fragmented relictual distribution across the Pacific coast of North America, the Cantabrian Mountains of Spain, the European Alps, and the Himalayas and adjacent regions of Asia.
Plagiognathus arbustorum
Common Nettle Flower Bug
Plagiognathus arbustorum is a small plant bug in the family Miridae, commonly known as the Common Nettle Flower Bug. It is a widespread species found across the Nearctic and Palearctic realms, including most of Europe, Siberia, Central Asia, and parts of North America. Adults are active from July to October and are polyphagous, feeding primarily on herbaceous plants across multiple families.