Wildlife of Eldorado Canyon State Park
Eldorado Canyon State Park lies eight miles southwest of the city of Boulder along the eastern edge of the Front Range of the Rocky Mountains in an ecotone between the grasslands below and coniferous forests in and above the park. The park is made up of 1,442 acres owned by the State of ...more ↓
Conical Trashline Orbweaver
Cyclosa conica is a small spider with no common name. It is an orb weaver, and it is easily recognized by the way it strings together the dead bodies of insects and other debris and hangs it near the center of its web. It hides on this string of debris, and its natural coloration makes it extremely difficult to see until it moves. One of its defenses against predators is to ...more ↓
European Harvestman
Phalangium opilio is "the most widespread species of harvestman in the world", occurring natively in Europe, and much of Asia, and having been introduced to North America, North Africa and New Zealand. It is found in a wide range of habitats, including meadows, bogs, forests, and various types of anthropogenic habitats, such as gardens, fields, hedgerows, lawns, quarries, green ...more ↓
Orchesella cincta
Orchesella cincta is a species of springtail present in North America and Europe. They average 4 millimetres (0.16 in) in length.
Phoebus Parnassian
Parnassius phoebus, known as the Phoebus Apollo or Small Apollo, is a butterfly species of the family of Swallowtail butterflies (Papilionidae) found in Eurasia and North America.
Rocky Mountain Parnassian
Parnassius smintheus, the Rocky Mountain parnassian, or Rocky Mountain apollo, is a high-altitude butterfly found in the Rocky Mountains throughout the United States and Canada. It is a member of the snow Apollo genus (Parnassius) of the swallowtail family (Papilionidae). The butterfly ranges in color from white to pale yellow-brown, with red and ...more ↓
Anise Swallowtail
The Anise Swallowtail, Papilio zelicaon, is a common swallowtail butterfly of western North America. Both the upper and lower sides of its wings are black, but the upper wing has a broad yellow stripe across it, which gives the butterfly an overall yellow appearance. There are striking blue spots on the rear edge of the rear wing, and the characteristic tails of the ...more ↓
Pale Swallowtail
Papilio eurymedon, the pale swallowtail or pallid swallowtail, is a relatively common swallowtail butterfly found throughout much of the western North America. It is found on the Pacific coast from northern Baja California to southernmost British Columbia and inland to New Mexico and the Black Hills of South Dakota. It is present from the coast to western Montana ...more ↓
Two-tailed Swallowtail
The Two-tailed Swallowtail (Papilio multicaudata) is a species of the Papilionidae family found in western North America from British Columbia to Central America.
Woodland Skipper
Ochlodes sylvanoides, the woodland skipper, is a butterfly of the family Hesperiidae. It is found in North America from British Columbia south to southern California, east to Montana, Colorado and Arizona.
Long Dash
The Long Dash or Long Dash Skipper (Polites mystic) is a species of butterfly. The species is commonly found in north of North America and in mountains in the south of North America, in grassy habitats. The grassy areas include meadows, marshes, streamsides, wood edges, and prairie swales. On the top, the species is dark brown reddish to yellowish orange markings. The ...more ↓
Tawny-edged Skipper
The Tawny-edged Skipper (Polites themistocles) is a North American butterfly in the family Hesperiidae.
Dun Skipper
The Dun Skipper, Sedge Witch or Dun Sedge Skipper (Euphyes vestris) is a species of butterfly of the Hesperiidae family. It is found from Nova Scotia west across southern Canada to southern Alberta, south to Florida, the Gulf Coast and eastern Texas. There are disjunct populations in the high plains and Rocky Mountains and along the Pacific Coast.
Garita Skipperling
The Garita Skipperling, Western Skipperling, or Garita Skipper (Oarisma garita) is a North American butterfly in the family Hesperiidae (skippers), subfamily Hesperiinae (grass skippers). This skipper ranges southeastern Manitoba to British Columbia and south through the American Midwest as far south as Mexico.
Afranius Duskywing
Afranius Duskywing or Bald Duskywing (Erynnis afranius) is a butterfly of the Hesperiidae family. It is found from northern Mexico through central United States to southern Alberta, Saskatchewan, and Manitoba.
Dreamy Duskywing
Erynnis icelus, the dreamy duskywing or aspen dusky wing, is a butterfly of the family Hesperiidae. It is found in boreal North America, from the Northwest Territories east across southern Canada to Nova Scotia, south in the western mountains to southern Arizona and southern New Mexico, south in the east to Arkansas, north-eastern Alabama and northern Georgia.
Mottled Duskywing
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Pacuvius Duskywing
Pacuvius Duskywing, Dyar's Duskywing, or Buckthorn Dusky Wing (Erynnis pacuvius) is a butterfly of the Hesperiidae family. It is found in most of the western United States and in southern British Columbia.
Hackberry Emperor
Asterocampa celtis, the hackberry emperor, is a North American butterfly that belongs to the family of brushfooted butterflies, Nymphalidae. It gets its name from the hackberry tree (Celtis occidentalis and others in the Celtis genus) upon which it lays its eggs. The hackberry tree is the only host plant for A. celtis and is the food source for ...more ↓
Weidemeyer's Admiral
Limenitis weidemeyerii, or Weidemeyer's admiral, is a butterfly from the Nymphalinae subfamily, found in western North America.
Northern Crescent
Phyciodes cocyta, the northern crescent, is a butterfly of the Nymphalidae family. It is found in the Nearctic realm.
Field Crescent
The Field Crescent (Phyciodes pulchella) is a butterfly of the Nymphalidae family. It is found in the Nearctic ecozone.
Gorgone Checkerspot
The Gorgone Checkerspot (Chlosyne gorgone) is a species of Nymphalinae that occurs in North America.
Red Admiral
The Red Admiral (Vanessa atalanta) is a well-known colourful butterfly, found in temperate Europe, Asia and North America. The Red Admiral has a 45–50 mm (1.8–2.0 in) wing span. The species is resident only in warmer areas, but migrates north in spring, and sometimes again in autumn.
Painted Lady
Vanessa cardui is a well-known colorful butterfly, known as the painted lady, or in North America as the cosmopolitan. This butterfly has a strange habit of flying in a sort of screw shape.
Mourning Cloak
Nymphalis antiopa, known as the Mourning Cloak in North America and the Camberwell Beauty in Britain, is a large butterfly native to Eurasia and North America. See also Anglewing butterflies.
Hoary Comma
The hoary comma (Polygonia gracilis) is a species of butterfly, common in boreal North America from Alaska, across southern Canada to New England and the Maritime Provinces and south to New Mexico from the Rocky Mountains to the Pacific Ocean. The wings have a distinctive ragged edge.
Milbert's Tortoiseshell
Milbert's Tortoiseshell (Aglais milberti), also known as the Fire-rim Tortoiseshell, is the only species of Aglais that occurs in North America.
Chryxus Arctic
The Chryxus Arctic (Oeneis chryxus) is a butterfly, a species of Satyrinae that occurs in North America.
Common Alpine
The Common Alpine (Erebia epipsodea) is a member of the Satyrinae subfamily of Nymphalidae. It is found from Alaska south through the Rocky Mountains to northern New Mexico and east across the prairie provinces to southwest Manitoba.
Small Wood-Nymph
The Small Wood-nymph or Dark Wood-nymph (Cercyonis oetus) is a butterfly of the Nymphalidae family. It is found in Western North America.
Aphrodite Fritillary
The Aphrodite Fritillary (Speyeria aphrodite) is a fritillary butterfly, from North America. This orange coloured fritillary has rows of dark dots or chevrons at the wing edges and black or brown lines more proximally. The ventral side of the wings are also orange with several rows of white dots. Its wingspan is between 51 and 73 mm.
Atlantis Fritillary
The Atlantis Fritillary (Speyeria atlantis) is a butterfly of the Nymphalidae family of North America. It is from the Avalon Peninsula of Newfoundland and Labrador to northern British Columbia, across northern United States south as far as Colorado and West Virginia. It resides as far north as James Bay.
Edwards' Fritillary
The Edwards' Fritillary (Speyeria edwardsii) is a butterfly of the Nymphalidae family of North America. It is common from Alberta west to Manitoba and south as far as northern New Mexico.
Silver-bordered Fritillary
The Small Pearl-bordered Fritillary (Boloria selene), called the Silver-bordered Fritillary in North America, is a butterfly of the family Nymphalidae. The Peggy Notebaert Nature Museum in Chicago, Illinois is conducting a DNA research experiment on Boloria selene.
Variegated Fritillary
The Variegated Fritillary (Euptoieta claudia) is a North and South American butterfly in the family Nymphalidae. Even though the Variegated Fritillary has some very different characteristics from the Speyeria Fritillaries, it is still closely related to them. Some of the differences are: Variegated Fritillaries have 2–3 broods per year vs. one per year in Speyeria; ...more ↓
Striped Hairstreak
Satyrium liparops, the striped hairstreak, is a butterfly of the Lycaenidae family. It is found in North America, from the Rocky Mountains south from southern Canada to Colorado, east to Maine and south to Florida.
Western Green Hairstreak
The Western Green Hairstreak or Immaculate Green Hairstreak (Callophrys affinis) is butterfly of the Lycaenidae family. It is found in western Canada and western USA.
Brown Elfin
Callophrys augustinus, the brown elfin, is butterfly of the family Lycaenidae. It is found from Newfoundland north and west through the northern United States and the prairie provinces to Alaska. To the south it ranges in Appalachian Mountains to northern Georgia and northern Alabama, further south through the western mountains to northern Baja California in Mexico. ...more ↓
Western Pine Elfin
The western pine elfin (Callophrys eryphon) is a North American butterfly that ranges from British Columbia east to Maine and south to southern California, Arizona, and New Mexico. Males are brown and females are orange-brown, with both having bold patterned hind wings. The top of the wings have dark bars with a lighter chevron shaped margin. The body is 19–32 mm in length and ...more ↓
Blue Copper
The Blue Copper (Lycaena heteronea) is a butterfly of the Lycaenidae family. It is found in the western Canada and USA.
Echo Azure
Celastrina echo, known generally as the echo azure or western azure, is a species of blue in the family of butterflies known as Lycaenidae. It is found in North America.
Spring Azure
The Spring Azure (Celastrina ladon) is a butterfly of the Lycaenidae family. It is found in North America from Alaska and Canada south of the tundra, through most of the United States except the Texas coast, southern plain and peninsula Florida; south in the mountains to Colombia.
Lucia Azure
Celastrina lucia, the lucia azure, northern azure, eastern spring azure or northern spring azure, is a species of butterfly of the Lycaenidae family. It is found eastern North America, ranging from the Maritimes south through the Appalachian Mountains to West Virginia.
Arrowhead Blue
The Arrowhead Blue (Glaucopsyche piasus) is a western North American butterfly of the family Lycaenidae. It is a locally common butterfly that favors prairie, open woodland, and woodland edges and trails.
Western Tailed Blue
The Western Tailed-blue (Cupido amyntula) is a member of the Lycaenidae family and is seen across western North America as far norther as Alaska. The upperside of the male butterfly is blue while the female has a darker brown band on the outer side of the wing. The underside is riddle with black spots, with a wingspan of 2.2 to 2.9 cm. The larvae feed on Thermopsis, ...more ↓
Mexican Yellow
The Mexican Yellow (Eurema mexicana, sometimes called the Wolf-Face Sulphur) is a North and South American butterfly in the family Pieridae. It occurs mainly in Mexico but occasionally is found in central and southwestern USA and rarely in Canada.
Dainty Sulphur
Nathalis iole, the dainty sulphur or dwarf yellow, is a North American butterfly in the family Pieridae.
Cabbage White
The Small White (Pieris rapae) is a small- to medium-sized butterfly species of the Yellows-and-Whites family Pieridae. It is also known as the Small Cabbage White and in New Zealand, simply as White Butterfly. The names "Cabbage Butterfly" and "Cabbage White" can also refer to the Large White.
Checkered White
The Checkered White (Pontia protodice), also called Southern Cabbage Butterfly, is a common North American butterfly in the family Pieridae. Its green larva is a type of cabbage worm.
Spring White
Pontia sisymbrii, the spring white, California white, or Colorado white, is a butterfly in the family Pieridae. It is found in mountainous areas of western Canada and the United States.
California Tiger Moth
Leptarctia californiae is a moth of the family Erebidae. It was described by Walker in 1855. It is found in western North America, from New Mexico and Colorado to California and north to British Columbia. The habitat consists of open forests, meadows and clearings in the mountains.
Poison hemlock moth
The hemlock moth (Agonopterix alstroemeriana), also known as the defoliating hemlock moth or poison hemlock moth, is a nocturnal moth species of the family Depressariidae. Of Palaearctic origin, it was first found in North America in 1973 when it was accidentally introduced. The moth is now widespread throughout the northern half of the United States, ...more ↓
Western Tent Caterpillar
Malacosoma californicum, the western tent caterpillar, is a moth of the family Lasiocampidae. It is a tent caterpillar. It is found in the western part of the Nearctic ecozone.
Spotted Thyris Moth
Thyris maculata, the spotted thyri, is a species of window-winged moth in the family Thyrididae.
Great Golden Digger Wasp
Sphex ichneumoneus, known commonly as the great golden digger wasp or great golden sand digger is a wasp in the family Sphecidae. It is identified by the golden pubescence on its head and thorax, its reddish orange legs, and partly reddish orange body. This wasp is native to the Western Hemisphere, from Canada to South America, and provisions its young with various ...more ↓
Yellow-legged Mud-dauber Wasp
Black and yellow mud dauber is a common name for the sphecid wasp species Sceliphron caementarium.
White-Shouldered Bumble Bee
Bombus appositus is a species of bumblebee known commonly as the white-shouldered bumblebee. It is native to western North America, including western Canada and the western United States.
Brown-belted Bumble Bee
Bombus griseocollis is a species of bumblebee known commonly as the brown-belted bumblebee. It is native to much of the United States except for the Southwest, and to the southernmost regions of several of the provinces of Canada.
Great Basin Bumble Bee
Bombus centralis, the central bumblebee, is a species of bumble bee found in parts of Canada and the western United States.
Hunt's Bumble Bee
Bombus huntii is a species of bumblebee. It is native to western North America, where it occurs in western Canada and the United States as far east as Manitoba and Minnesota, and in Mexico as far south as the Trans-Mexican Volcanic Belt. It is known commonly as the Hunt bumblebee or Hunt's bumblebee.
Colorado Black-notched Bumble Bee
Bombus bifarius, the two-form bumblebee, is a common species of eusocial bumblebee of the subgenus Pyrobombus. B. bifarius inhabits mountainous regions of western North America. Its common name refers to the two dominant color polymorphisms, the nominate and nearcticus morphs, present in the species. B. bifarius has been identified as one of the two ...more ↓
Western Honey Bee
The western honey bee or European honey bee (Apis mellifera) is the most common of the 7–12 species of honey bee worldwide. The genus name Apis is Latin for "bee", and mellifera is the Latin for "honey-bearing", referring to the species' production of honey for the winter.
Black Shortface
Dufourea maura is a species of sweat bee in the family Halictidae. It is found in North America.
Milwaukee Mining Bee
Andrena milwaukeensis, the Milwaukee andrena, is a species of mining bee in the family Andrenidae. It is found in North America.
European Paper Wasp
The European paper wasp (Polistes dominula, often misspelled as dominulus) is one of the most common and well-known species of social wasps in the genus Polistes. Its diet is more diverse than that of most Polistes species (many genera of insects versus mainly caterpillars in other Polistes), giving it superior survival value over many other wasp ...more ↓
Western Paper Wasp
Mischocyttarus flavitarsis is a social paper wasp found in western North America. Their nests can be found both in forests close to rivers or in close proximity to human life under the eaves of roofs. Despite the fact that M. flavitarsis nests are frequently in close contact with humans, M. flavitarsis typically will not sting, but rather ram into the threatening ...more ↓
Mossy Rose Gall Wasp
The rose bedeguar gall, Robin's pincushion gall, or moss gall develops as a chemically induced distortion of an unopened leaf axillary or terminal buds, mostly on field rose (Rosa arvensis) or dog rose (Rosa canina) shrubs, caused by the parthenogenetic hymenopteran gall wasp (Diplolepis rosae (Linnaeus, 1758)), previous synonyms are D. ...more ↓
Punctured Tiger Beetle
Cicindela punctulata, the Punctured Tiger Beetle, is a species of Tiger Beetle (Subfamily Cicindelinae) commonly found across much of the US, Southeastern Canada, and in parts of Northern Mexico.
Anthrenus lepidus
Anthrenus lepidus is a species of carpet beetle in the family Dermestidae. It is found in North America.
Microrhopala excavata
Microrhopala excavata is a species of leaf beetle in the family Chrysomelidae. It is found in North America.
Agroiconota bivittata
Agroiconota bivittata is a species of tortoise beetle in the family Chrysomelidae. It is found in Central America and North America.
Convergent Lady Beetle
Hippodamia convergens, commonly known as the convergent lady beetle, is one of the most common lady beetles in North America and is found throughout the continent. Aphids form their main diet and they are used for the biological control of these pests.
Seven-spotted Lady Beetle
Coccinella septempunctata, the seven-spot ladybird (or, in North America, seven-spotted ladybug or "C-7"), is the most common ladybird in Europe. Its elytra are of a red colour, but punctuated with three black spots each, with one further spot being spread over the junction of the two, making a total of seven spots, from which the species derives both its ...more ↓
Blue Fungus Beetle
Cypherotylus californicus, sometimes known as the blue fungus beetle or blue pleasing fungus beetle, is a species of pleasing fungus beetle in the family Erotylidae. It is recorded from Wyoming, Colorado, New Mexico, Arizona, California, Kansas, and the Mexican state of Sonora.
Ornate Checkered Beetle
Trichodes ornatus, commonly known as Ornate Checkered Beetle, is a beetle species of checkered beetles belonging to the family Cleridae, subfamily Clerinae which can be found only in North America.
Rough strawberry root weevil
Otiorhynchus rugosostriatus, known generally as the rough strawberry root weevil or rough strawberry weevil, is a species of broad-nosed weevil in the beetle family Curculionidae. It is found in North America.
Strawberry Root Weevil
Otiorhynchus ovatus, also called the strawberry root weevil, is one of the many species in the weevil family (Curculionidae), occurring across Canada and the northern United States. Its name comes from its affinity for strawberry plants, which form a large part of its diet. They are, however, known to feed on other plants as well. Occasionally the larvae cause serious ...more ↓
Colorado Soldier Beetle
Chauliognathus basalis, the Colorado soldier beetle, is a species of soldier beetle in the family Cantharidae. It is found in North America.
Western Sculptured Pine Borer
Chalcophora angulicollis, known generally as the western sculptured pine borer or sculptured pine borer, is a species of metallic wood-boring beetle in the family Buprestidae. It is found in North America.
Bumble Flower Beetle
Euphoria inda, the bumble flower beetle, is a species of scarab beetle in the family Scarabaeidae.
Mormon Cricket
The Mormon cricket (Anabrus simplex) is a large insect that can grow to almost 8 cm (3 inches) in length. It lives throughout western North America in rangelands dominated by sagebrush and forbs.
Speckle-Winged Rangeland Grasshopper
Arphia conspersa, known generally as the speckle-winged rangeland grasshopper or speckled rangeland grasshopper, is a species of band-winged grasshopper in the family Acrididae. It is found in North America.
Green-striped Grasshopper
Chortophaga viridifasciata, the green-striped grasshopper, is a species of band-winged grasshopper in the family Acrididae. It is found in Central America and North America, ranging from British Columbia to the Gulf of Mexico (mostly east of the Rocky Mountains), south to Costa Rica.
Pallid-winged Grasshopper
The pallid-winged grasshopper (Trimerotropis pallidipennis) is a common grasshopper of the family Acrididae, native to the deserts of western North America from British Columbia to Argentina. They are more active during the summer months, and their pale, mottled coloration makes them hard to see against surfaces such as the granite often found in the gravel of dry river beds. ...more ↓
