Montane
Guides
Microcorsini
Microcorsini is a tribe of tortrix moths in the subfamily Olethreutinae, first described by Kuznetzov in 1970. The tribe was originally erected for four genera in Olethreutinae, later transferred to Tortricinae by the same author in 1973, with subsequent treatments returning it to Olethreutinae. The genus Cryptaspasma is the primary representative, with species distributed across the Neotropical region from Mexico to South America.
Milgithea alboplagialis
Milgithea alboplagialis is a small snout moth in the family Pyralidae, first described by Harrison G. Dyar in 1905. It is known only from the Huachuca Mountains in southeastern Arizona, where it inhabits montane environments. The species is characterized by a relatively modest wingspan of 23–27 mm. Like other members of its genus, it belongs to the subfamily Epipaschiinae, a group of pyralid moths whose larvae are generally associated with dead or decaying plant material.
Nebria coloradensis
Colorado gazelle beetle
Nebria coloradensis is a flightless ground beetle endemic to the mountainous regions of Colorado. Adults possess reduced wings (brachypterous) and are active nocturnally. The species inhabits wet ground in alpine and subalpine environments.
Nebria gebleri
Gebler's gazelle beetle
Nebria gebleri is a species of ground beetle in the family Carabidae, first described by Dejean in 1831. It is found in North America, with a distribution spanning Alaska, Canada, and the western United States. The species comprises six recognized subspecies, each associated with specific mountain ranges. Adults are nocturnal and carnivorous.
Nebria gebleri cascadensis
Nebria gebleri cascadensis is a subspecies of ground beetle in the family Carabidae, described by Kavanaugh in 1979. It belongs to the subgenus Catonebria within the genus Nebria. The subspecies is distributed in northwestern North America, including Alaska and parts of Canada and the contiguous United States. Very few observations exist in public databases, suggesting it may be uncommon or underreported.
Nebria gebleri gebleri
Nebria gebleri gebleri is a subspecies of ground beetle in the family Carabidae, subfamily Nebriinae. It is native to boreal and montane regions of North America, with records from Alaska, Canada, and the contiguous United States. The species is part of the subgenus Catonebria, a group characterized by cold-adapted biology and often associated with high-elevation or high-latitude habitats.
Nebria labontei
Labonte's gazelle beetle
Nebria labontei is a ground beetle endemic to the mountains of Oregon, United States. It belongs to the genus Nebria, a group commonly known as gazelle beetles for their running speed. The species was described by Kavanaugh in 1984 and is one of several Nebria species restricted to western North American mountain ranges.
Nebria ovipennis
oval gazelle beetle
Nebria ovipennis is a ground beetle endemic to California and Nevada, where it inhabits meadows and snowfield margins in upland and mountainous areas. Adults are brachypterous (short-winged), nocturnal, and carnivorous. The species belongs to the subfamily Nebriinae, a group often associated with cool, moist habitats at higher elevations.
Nebriinae
Nebriinae is a subfamily of ground beetles (Carabidae) established by Laporte in 1834, containing approximately 12 genera and more than 840 described species. The group is distributed across the Palaearctic region, with significant diversity in mountainous areas of Europe including the Carpathians, Balkans, and other ranges. Species are often associated with montane and submontane habitats, though some occur in lowland meadow-steppe environments. The genus Nebria is the most species-rich and well-studied within the subfamily.
Nemastomatidae
Nemastomatid Harvestmen
The Nemastomatidae are a family of harvestmen (Opiliones: Dyspnoi) comprising approximately 170 described species in 16 extant genera. The family is divided into two subfamilies with disjunct distributions: Nemastomatinae in Europe, North Africa, and western Asia, and Ortholasmatinae in western North America and eastern Asia. Members are characterized by variable body size (1–6 mm) and often possess elongated, thread-like pedipalps. The family is monophyletic and likely sister to the Dicranolasmatidae and Trogulidae.
Neophylax splendens
Neophylax splendens is a species of caddisfly in the family Uenoidae (formerly Thremmatidae). Larvae construct protective cases using silk and materials gathered from streambeds. The species was first described from North America in 1948 and has since been recorded in the Cypress Hills of Saskatchewan, Canada, representing a significant biogeographical extension linking montane regions of British Columbia and Utah to the southwestern corner of Saskatchewan.
Nepytia janetae
Nepytia janetae is a geometrid moth species that has transitioned from an innocuous, poorly studied insect to a significant forest pest in the southwestern United States. Since 1996, four major outbreaks have caused extensive defoliation and mortality of conifer trees across tens of thousands of acres in Arizona and New Mexico mountain ranges. The species exhibits an unusual life history as a univoltine, autumn- and winter-feeding looper at high elevations where temperatures regularly approach or fall below 0°F. Outbreaks appear associated with reduced snowpack, though the precise climatic mechanisms remain unclear.
Notiophilus simulator
Fall's big-eyed beetle
Notiophilus simulator is a ground beetle in the family Carabidae, commonly known as Fall's big-eyed beetle. The species exhibits wing dimorphism, with populations containing both short-winged (brachypterous) and long-winged (macropterous) individuals. It inhabits upland to mountainous environments across North America.
Oeneis alberta
Alberta Arctic
Oeneis alberta is a butterfly in the family Nymphalidae, commonly known as the Alberta Arctic. It inhabits prairie and montane grassland habitats across the Canadian prairie provinces and isolated Rocky Mountain populations in the southwestern United States. The species exhibits a single annual generation with adults active in late spring. Larvae feed on bunch grasses and overwinter in the larval stage.
Oeneis nevadensis
Great Arctic, Nevada Arctic, great grayling, Felder's Arctic, Pacific Arctic
Oeneis nevadensis, commonly called the great Arctic, is the largest western Arctic butterfly with a wingspan of 5.1–6.3 cm. It is distinguished by its biennial life cycle, with adults appearing only in even-numbered years for most populations. The species occurs in high-elevation habitats of the Cascade Mountains from southern British Columbia to northern California, where it represents the southernmost range limit for this Arctic group in western North America.
Oeneis uhleri varuna
Varuna Arctic
Oeneis uhleri varuna, commonly known as the Varuna Arctic, is a subspecies of butterfly in the family Nymphalidae. It belongs to the genus Oeneis, a group commonly referred to as the Arctics, which are typically associated with high mountain habitats across western North America. This subspecies is distributed across the Canadian prairie provinces. The Varuna Arctic is one of several subspecies within the Oeneis uhleri species complex, which exhibits variation across its range in North America.
Oligostigmoides cryptalis
Oligostigmoides cryptalis is a moth in the family Crambidae, subfamily Acentropinae. It was described by Herbert Druce in 1896 based on specimens from Mexico. The species has been recorded from montane localities in Mexico (Xalapa, Orizaba), Costa Rica, and Panama. Very few observations exist, with only three records documented on iNaturalist.
Olophrum boreale
Olophrum boreale is a rove beetle (Staphylinidae: Omaliinae) with a Holarctic distribution spanning northern Europe, Russia, and North America. The species occurs in boreal and montane habitats. Limited observational records suggest it is not frequently encountered.
Omalorphanus
Omalorphanus is a monotypic genus of rove beetles (Staphylinidae) described in 1987 from the H.J. Andrews Experimental Forest in Oregon. The sole species, Omalorphanus aenigma, was noted by its authors for possessing multiple unusual morphological features that complicated its taxonomic placement. The genus was ultimately assigned to subfamily Omaliinae based on its distinctive defense gland structure and spiracle arrangement.
Omus californicus
California night-stalking tiger beetle
Omus californicus is a nocturnal tiger beetle species endemic to western North America, recognized for its distinctive night-stalking predatory behavior. The species exhibits notable taxonomic complexity with six recognized subspecies distributed across California, Oregon, and adjacent regions. Adults are elusive, active primarily during nighttime hours, and are associated with forested and montane habitats. The species has been subject to taxonomic confusion with related taxa, particularly regarding subspecies boundaries.
Omus californicus angustocylindricus
Narrow Night-stalking Tiger Beetle
Omus californicus angustocylindricus is a subspecies of night-stalking tiger beetle endemic to California. It is one of several subspecies within the Omus californicus complex, characterized by its narrow, elongated body form. Adults are nocturnal and difficult to observe, with activity patterns tied to seasonal conditions. Larvae construct burrows in forested habitats, typically found along logging roads or under cover objects. The subspecies is considered rare and has been documented from limited localities in northern California, particularly in Plumas County.
Omus californicus subcylindricus
Subcylindrical Night-stalking Tiger Beetle
Omus californicus subcylindricus is a subspecies of night-stalking tiger beetle in the family Carabidae. It is one of several subspecies within the Omus californicus complex, which exhibits considerable morphological and geographic variation across its range in western North America. The subspecies was described by Nunenmacher in 1940 and is distinguished by its subcylindrical body form compared to other members of the complex.
Onthophagus mextexus
Onthophagus mextexus is a dung beetle species in the family Scarabaeidae, described by Howden and Cartwright in 1970. The species occurs in montane regions of northeastern Mexico and southern Texas, USA. As a member of the genus Onthophagus, it is presumed to be a tunneler dung beetle that buries dung for larval development, though specific natural history details remain undocumented. The species was described from specimens collected in the Mexican states of Guanajuato, Hidalgo, Nuevo León, Puebla, San Luis Potosí, and Veracruz.
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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advena
Oxycnemis advena is a small noctuid moth described by Augustus Radcliffe Grote in 1882. It is restricted to the mountainous regions of southwestern North America, occurring in southern Arizona, eastern Nevada, southern California, and southern Baja California. Adults are active during mid-summer, with flight records from July to August. The species is one of relatively few in the genus Oxycnemis, which belongs to the tribe Psaphidini within the subfamily Amphipyrinae.
Oxygonus montanus
Catskill Mountain Click Beetle
A click beetle in the family Elateridae, native to eastern Canada. Adults have been recorded from New Brunswick, Nova Scotia, and Quebec. The common name suggests association with mountainous regions, though specific habitat requirements remain poorly documented. Like other elaterids, it possesses the characteristic clicking mechanism for righting itself when overturned.
Pachybrachis alticola
Pachybrachis alticola is a species of case-bearing leaf beetle first described by Fall in 1915. It belongs to the genus Pachybrachis, a diverse group of small, rounded leaf beetles characterized by their compact bodies and often patterned elytra. The species name "alticola" suggests an association with higher elevations, though specific habitat preferences remain poorly documented. Like other members of its genus, it likely feeds on various herbaceous plants and shrubs.
Panthea greyi
Panthea greyi is a noctuid moth described in 2009 by Anweiler. It is known from montane regions of the southwestern United States, specifically in Arizona, New Mexico, Colorado, and southern Utah, at elevations between 1524 and 2545 meters. Adults are active during summer months, with males having a wingspan of 38–45 mm and females 42–50 mm.
Papestra biren
Glaucous Shears, Glaucous Shears Moth
Papestra biren, commonly known as the glaucous shears, is a noctuid moth with a wingspan of 30–38 mm. The species was first described by Goeze in 1781 and exhibits notable color variation across its range, including purplish-grey, ashy-grey, and dark ruddy-grey forms. Adults are active from May to July in a single annual generation. The species has a broad Palearctic distribution and was introduced to North America in 1935, where it has since expanded southward from Newfoundland.
Paraleuctra vershina
summit needlefly
Paraleuctra vershina, commonly known as the summit needlefly, is a species of rolled-winged stonefly in the family Leuctridae. It was described by Gaufin & Ricker in 1974. The species is distributed across western North America, with records from Alaska through western Canada to California and Colorado. As a member of the Leuctridae, it is characterized by wings that roll tightly around the body when at rest.
Paraplatyptilia atlantica
Atlantic Canada Plume Moth
Paraplatyptilia atlantica is a plume moth in the family Pterophoridae, endemic to Eastern Canada. It is known only from Newfoundland and Quebec, with records from coastal and montane habitats including Mount Albert at elevations up to 1,100 metres. The species is small, with a wingspan of approximately 20 mm. Adults are active during mid-summer.
Paraplatyptilia fragilis
Beardtongue Plume Moth
Paraplatyptilia fragilis is a plume moth in the family Pterophoridae, described by Lord Walsingham from the Klamath Lakes area in northern California. It has a wide geographic range across the Great Basin, inland montane and desert regions from eastern British Columbia to Utah, and from New Mexico to southern California and Baja California Norte in Mexico. Adults are active in April and have a wingspan of 17–19 mm. The species is very similar to Paraplatyptilia carduidactylus but averages paler in coloration, particularly on the uniformly pale abdomen. The larvae feed specifically on Penstemon cyananthus.
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.
Pentodontini
rhinoceros beetles
Pentodontini is the most diverse tribe within the subfamily Dynastinae (rhinoceros beetles), containing over 100 genera distributed across multiple biogeographic regions. Most genera are restricted to a single biogeographic region. The tribe is characterized by substantial morphological diversity, with generic-level identification often relying on mouthpart morphology in females and secondary sexual characters (horns, claw modifications, antennal club length) in males.
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hconnectivity-conservationcorridorbuffer-zoneprotected-areanational-parknature-reservewildlife-refugewilderness-areaworld-heritage-sitebiosphere-reserveRamsar-siteImportant-Bird-AreaKey-Biodiversity-AreaAlliance-for-Zero-Extinction-siteconservation-priorityhotspotcrisis-ecoregionglobal-200last-of-the-wildhuman-footprintcumulative-impactthreat-indexvulnerability-indexadaptive-capacityexposuresensitivityresilienceresistancerecoveryrestorationrehabilitationreintroductiontranslocationex-situin-situcaptive-breedingbotanic-gardenzoogene-bankseed-banktissue-banksperm-bankoocyte-bankembryo-bankDNA-bankfrozen-zooarkinsurancesafety-netde-extinctiongenetic-rescuegenetic-restorationgenetic-augmentationgenetic-managementpopulation-managementmetapopulationsource-sinkpatchmatrixlandscapeseascapeecosystembiomeecoregionprovincezoneregiondistrictsitelocalityhabitatmicrohabitatnicheecological-nichefundamental-nicherealized-nichetrophic-nichespatial-nichetemporal-nichebiotic-nicheabiotic-nichemultidimensional-nichen-dimensional-nicheHutchinsonian-nicheGrinnellian-nicheEltonian-nicheresourcerequirementlimitationstressdisturbanceperturbationfluctuationvariabilityheterogeneitycomplexitydiversityredundancystabilitypersistenceadaptationacclimationplasticityevolvabilityheritabilityselectiondriftflowmutationrecombinationspeciationcoalescencedivergenceconvergenceparallelismhomoplasyanalogyhomologysynapomorphysymplesiomorphyautapomorphyapomorphyplesiomorphyderivedancestralprimitiveadvancedbasalcrownstemnodebranchcladegradesubfamilyfamilysuperfamilyinfraordersuborderordersuperorderinfraclasssubclassclasssuperclasssubphylumphylumsuperphylumkingdomdomainlifeorganismindividualetc.Phidippus asotus
Phidippus asotus is a small jumping spider in the family Salticidae, distributed across the southwestern United States and northern Mexico. Both sexes average approximately 7 mm in body length. Males are distinguished by pale orange coloration, while females are less vividly marked. The species occupies montane habitats between 5,000–7,000 feet elevation and has been observed hunting on oak, juniper, and various shrubs. Adults mature in fall, with some individuals likely overwintering to become active again in spring.
Phlaeopterus cavicollis
Phlaeopterus cavicollis is a rove beetle in the subfamily Omaliinae, first described from the Pacific Northwest region. The species is associated with cool, moist montane and coastal environments across western North America. It belongs to a genus characterized by compact body forms and association with forest floor habitats. Available records suggest it occupies a relatively narrow geographic range compared to some congeners.
Phyciodes orseis
California Crescent, Orseis crescentspot
Phyciodes orseis is a small nymphalid butterfly endemic to western North America, with its core range in northern California and Oregon. It inhabits mountain valleys, meadows, and stream canyons, where it has been documented as part of ecosystem monitoring efforts on the Fremont-Winema National Forests. The species has experienced range contraction, with historical records from the San Francisco Bay Area now considered mislabeled or representing extirpated populations.
Phyllonorycter nipigon
Balsam Poplar Leaf Blotch Miner
Phyllonorycter nipigon is a small leaf-mining moth in the family Gracillariidae. The species is widespread across northern North America, with larvae that create blotch mines in leaves of various Populus species. Adults are active in late summer and fall, with one generation per year. The species is named after Lake Nipigon in Ontario, Canada.
Phymonotus
Phymonotus is a monotypic genus of shield-backed katydid erected in 2011, containing the single species P. jacintotopos. The genus is distinguished by an unusually enlarged dome-like pronotum, a distinctive calling song, and seven additional morphological features. It is considered a Pleistocene relic taxon endemic to high-elevation conifer forests of the San Jacinto Mountains in southern California.
Phymonotus jacintotopos
San Jacinto shieldback
Phymonotus jacintotopos is a rare, monotypic shield-backed katydid endemic to the San Jacinto Mountains of southern California. It is distinguished by an unusually enlarged dome-like pronotum, distinctive red-and-black coloration, and a unique calling song. The species is considered a Pleistocene relic, restricted to isolated high-elevation conifer forests. It belongs to the tribe Nedubini, whose members have a Gondwanan distribution.
Pidonia aurata
Pidonia aurata is a small long-horned beetle in the subfamily Lepturinae, known from the western United States. Based on field observations, adults display a distinctive black-and-yellow color pattern and have been collected on flowers of Asteraceae and Malvaceae. The species appears to be active in early to mid-summer, with records from June at elevations around 7000 feet in northern Arizona.
Pieris marginalis
margined white
Pieris marginalis, commonly known as the margined white, is a butterfly species distributed across western North America from the Yukon through Western Canada to the Rocky Mountains. It exhibits seasonal polyphenism, with distinct spring and summer wing forms. The species utilizes plants in the family Brassicaceae as larval hosts and has been observed in both disturbed and undisturbed habitats, suggesting ecological flexibility.
Pinalitus rubrotinctus
Pinalitus rubrotinctus is a species of plant bug in the family Miridae, described by Knight in 1968. It belongs to a genus of mirid bugs associated with coniferous vegetation. The species is known from the southwestern United States.
Pionenta ochreata
Pionenta ochreata is a small geometrid moth found in the southwestern United States. The species was originally described by Hulst in 1898 and later transferred to the genus Pionenta when that genus was erected to accommodate species formerly placed in Antepione. Adults fly during late spring and summer months.
Plateros
net-winged beetles
Plateros is a large genus of net-winged beetles (family Lycidae), with over 900 species worldwide and 47 currently described species. It is the largest genus in its family and belongs to the tribe Platerodini. The genus has a wide distribution across the Americas, Africa, and Asia, including Sri Lanka, Indochina, Korea, and Japan. Members are predominantly found in tropical regions, with some species extending into temperate zones.
Platypalpus
dance fly, hybotid dance fly
Platypalpus is a large genus of hybotid dance flies comprising at least 580 described species worldwide, with over 200 species in Europe alone. These small predatory flies are characterized by their compact bodies, enlarged compound eyes that occupy most of the head, and raptorial front legs adapted for seizing prey. Adults are active predators that feed on small insects, while larvae occupy diverse microhabitats including leaf litter, soil, and aquatic environments. The genus has been documented in agricultural ecosystems, particularly cereal crops and greenhouses, where they may contribute to pest regulation.
Platypedia
Wing-tapping Cicadas
Platypedia is a genus of cicadas in the family Cicadidae containing at least 20 described species distributed across western North America. Unlike most cicadas, males in this genus lack tymbal organs and instead produce sound through crepitation—snapping their wings together or striking them against vegetation. This alternative sound production mechanism enables two-way acoustic communication between males and females, as females also produce sound. The genus occurs primarily in montane habitats, with species segregated by elevation.
Platypedia bernardinoensis
Platypedia bernardinoensis is a species of cicada in the family Cicadidae. It belongs to a group of cicadas known as "wing-bangers" or "wing-tappers" that produce sound by snapping their wings against vegetation rather than using the tymbal organs typical of most cicadas. The species is found in western North America.
Platypedia minor
Minor Cicada
Platypedia minor is a small cicada species in the genus Platypedia, a group known for producing sound through wing-snapping rather than abdominal tymbals. Like other Platypedia species, males lack the timbal organs typical of most cicadas and instead communicate via crepitation—snapping their wings against their bodies or substrate. The species occurs in western North America, where it inhabits montane and foothill environments.
Platypedia putnami
Putnam's Cicada, Putnam's Wing-banger
Platypedia putnami is a species of cicada in the family Cicadidae, commonly known as Putnam's Cicada or Putnam's Wing-banger. It occurs in mountainous regions of western North America, typically at elevations around 6,000 feet in evergreen forest understory. Unlike most cicadas, males lack abdominal tymbals and instead produce sound by snapping their wings against vegetation—a behavior termed crepitation. The species has four recognized subspecies distributed across its range.