Bugs of Roxborough State Park

Roxborough State Park is located approximately twenty-five miles southwest of Denver in Douglas County. Over 105,000 people visit this day-use park each year. Local schools, scouting groups, and clubs make up a significant portion of park visitation. Families and groups of international ...more ↓

Leopard Slug

Limax maximus (literally, "biggest slug"), known by the common names great grey slug and leopard slug, is a species of slug in the family Limacidae, the keeled slugs. It is among the largest keeled slugs, Limax cinereoniger being the largest.

Western Black Widow

Latrodectus hesperus, the western black widow spider or western widow, is a venomous spider species found in western regions of North America. The female's body is 14–16 mm (1/2 in) in length and is black, often with an hourglass-shaped red mark on the lower abdomen. This "hourglass" mark can be yellow, and on rare occasions, white. The male of the species is ...more ↓

Phidippus octopunctatus

Phidippus octopunctatus is a jumping spider that occurs in the United States and Mexico, mostly in the Great Basin Desert. It is among the largest jumping spiders found in North America, approaching 25 millimetres (0.98 in) in body length. They are gray to brownish-gray in color.

Bold Jumper

Phidippus audax is a common jumping spider of North America. It is commonly referred to as the daring jumping spider, or bold jumping spider. The average size of adults ranges from roughly 13–20 millimetres (0.51–0.79 in) in length. They are typically black with a pattern of spots and striped on their abdomen and legs. Often these spots are orange-tinted in ...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 ↓

White-lined Sphinx

Hyles lineata, also known as the white-lined sphinx or hummingbird moth, is a moth of the family Sphingidae. They are sometimes referred to as the hummingbird moth because of their bird-like size (2-3 inch wingspan) and flight patterns.

Rocky Mountain Clearwing

The Rocky Mountain clearwing or California clearwing (Hemaris thetis) is a moth of the family Sphingidae. It is found from Colorado, New Mexico, Montana, Idaho, Wyoming and Utah west to California and north to British Columbia. The habitat consists of streamsides and meadows in mountainous areas.

Western Sheep Moth

The sheep moth, or common sheep moth (Hemileuca eglanterina), is a member of the family Saturniidae of silk moths and is native to western North America. In California, its range is west of the Sierran crest and the mountains of Southern California, ranging near to the coast. The moth is dayflying and appears in summer. It feeds on plants of three genera: ...more ↓

Black Swallowtail

The (Eastern) Black Swallowtail (Papilio polyxenes), also called the American Swallowtail or Parsnip Swallowtail, is a butterfly found throughout much of North America. It is the state butterfly of Oklahoma. An extremely similar-appearing species, Papilio joanae, occurs in the Ozark Mountains region, but it appears to be closely related to Papilio ...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.

Western Tiger Swallowtail

The Western Tiger Swallowtail (Papilio rutulus) is a common swallowtail butterfly of western North America, frequently seen in urban parks and gardens as well as in rural woodlands and riparian areas. It is a member of the Papilio genus, of which Papilio appalachiensis and Papilio xuthus are also members. It is a large, brightly colored and active butterfly, ...more ↓

Common Roadside-Skipper

Amblyscirtes vialis (the Common Roadside Skipper) is a butterfly of the Hesperiidae family. It is found from British Columbia east across southern Canada to Maine and Nova Scotia, south to central California, northern New Mexico, Texas, the Gulf states and northern Florida.

Taxiles Skipper

Poanes taxiles, the taxiles skipper, is a species of grass skipper in the family Hesperiidae. It is found in Central America and North America.

Sachem

Atalopedes campestris (called the sachem in the United States) is a small skipper butterfly. It is just over 1 inch (2.5 cm) long and has orange-and-brown adults. Females are slightly larger and have paler markings on their wings compared to males.

Woodland Skipper

The Woodland Skipper (Ochlodes sylvanoides) is a butterfly of the Hesperiidae family. It is found from British Columbia south to southern California, east to Montana, Colorado and Arizona.

Common Branded Skipper

The Silver-spotted Skipper (Hesperia comma) is a butterfly of the Hesperiidae family. It is known as the Common Branded Skipper or Holarctic Grass Skipper in North America, where the butterfly Epargyreus clarus, a spread-winged skipper, also has the common name of "Silver-spotted Skipper".

Juba Skipper

The Juba Skipper, Yuba Skipper, or Jagged-border Skipper (Hesperia juba) is a butterfly of the Hesperiidae family. It is found from British Columbia, south to southern California, east to Montana, Wyoming, Colorado, and north-western New Mexico.

Leonard's Skipper

Hesperia leonardus, the Leonard's skipper, is a butterfly of the Hesperiidae family. There are three subspecies. Next to the nominate species, these are the Pawnee skipper (ssp. pawnee), which is found in North America from western Montana and south-eastern Saskatchewan east to Minnesota, south to central Colorado and Kansas. Leonard's skipper ranges from ...more ↓

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 ↓

Crossline Skipper

The Crossline Skipper (Polites origenes) is a butterfly in the Hesperiidae family. It is found in the eastern United States, excepting Florida, southern Ontario, and Quebec.

Peck's Skipper

The Peck's Skipper (Polites peckius) is a North American butterfly in the family Hesperiidae (skippers), subfamily Hesperiinae (grass skippers). This skipper ranges across Canada from British Columbia, as far north as Cartwright, Labrador; Moar Lake, Ontario; Leaf Rapids, Manitoba; and the Hay River area in Alberta. In the US, it ranges in most of the northern and central ...more ↓

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.

Delaware Skipper

The Delaware Skipper (Anatrytone logan) is a North American butterfly in the family Hesperiidae (skippers), subfamily Hesperiinae (grass skippers). This skipper ranges from the southern Prairies in Canada and southern Ontario and southwards through the midwestern and eastern states in the US.

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.

Russet Skipperling

Comments: Mainly moist grassy streamsides in valleys in Upper Sonoran to Transition regions.

Northern Cloudywing

The Northern Cloudywing is a species of the Hesperiidae family.

Silver-spotted Skipper

The Silver-spotted Skipper (Epargyreus clarus) is a butterfly of the family Hesperiidae. It is claimed to be the most recognized skipper in North America.

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.

Sleepy Duskywing

E. brizo is a species of Hesperiidae that occurs throughout North America and is commonly confused with E. juvenalis and E. lucilius.

Funereal Duskywing

The Funereal Duskywing (Erynnis funeralis) is a butterfly of the Hesperiidae family. It is found from southern California, Arizona, New Mexico and Texas, south to Argentina. Strays can be found north up to northern Illinois, north-eastern Nebraska, central Colorado, southern Nevada and central California.

Horace's Duskywing

Horace's Duskywing (Erynnis horatius) is a butterfly of the Hesperiidae family. It is found from Massachusetts, west to eastern South Dakota, south through most of the eastern United States to Florida, the Gulf Coast, and southern Texas, south in the west through south-eastern Utah, Colorado, north-eastern Arizona, and New Mexico. Fringes are brown. Upperside of male forewing is ...more ↓

Dreamy Duskywing

The Dreamy Duskywing or Aspen Dusky Wing (Erynnis icelus) is a butterfly of the Hesperiidae family. 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.

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.

Persius Duskywing

Erynnis persius, the Persius duskywing, is a butterfly of the family Hesperiidae that occurs in North America. It is a threatened species in Michigan and is protected by law.

Rocky Mountain Duskywing

Comments: Oak or mixed woodland and oak thickets, usually with Gambel's oak.

Common Sootywing

Pholisora catullus (the Common Sootywing or Roadside Rambler) is a butterfly of the Hesperiidae family. It is found from the central parts of the United States, south to central Mexico. Strays may colonizes up to southern British Columbia, northern Michigan, southern Quebec and southern Maine. It is not found on Peninsular Florida.

Hackberry Emperor

The Hackberry Emperor (Asterocampa celtis) is a North American butterfly that belongs to the family of brushfooted butterflies, Nymphalidae.

Weidemeyer's Admiral

The Weidemeyer's Admiral (Limenitis weidemeyerii) is a butterfly from the Nymphalinae subfamily, 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.

Pale Crescent

The Pale Crescent or Pallid Crescentspot (Phyciodes pallida) is a butterfly of the Nymphalidae family. It is found in the western North America.

Phyciodes campestris

The Field Crescent (Phyciodes pulchella) is a butterfly of the Nymphalidae family. It is found in the Nearctic ecozone.

Pearl Crescent

The Pearl Crescent (Phyciodes tharos) is a butterfly of North America. It is found in all parts of the United States except the west coast, and throughout Mexico and parts of southern Canada, in particular Ontario. Its habitat is open areas such as pastures, road edges, vacant lots, fields, open pine woods. Its pattern is quite variable. Males usually have black antennal ...more ↓

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 colourful butterfly, known as the Painted Lady, or in North America as the Cosmopolitan. This butterfly has a strange pattern 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.

Satyr Comma

The Satyr Comma (Polygonia satyrus) is a North American butterfly of the species nymphalid, primarily found in Western Canada, where it is locally common. It bears a resemblance to the Eastern Comma, with which it is frequently confused.

Nymphalis milberti

Milbert's Tortoiseshell (Aglais milberti), also known as the Fire-rim Tortoiseshell, is the only species of Aglais that occurs in North America.

Common Buckeye

The common buckeye or simply, buckeye, (Junonia coenia) is a butterfly in the family Nymphalidae. It is found in southern Manitoba, Ontario, Quebec, and Nova Scotia and all parts of the United States except the northwest, and is especially common in the south, the California coast, and throughout Central America and Colombia. The sub-species Junonia coenia bergi is ...more ↓

Chryxus Arctic

The Chryxus Arctic (Oeneis chryxus) is a butterfly, a species of Satyrinae that occurs in North America.

Common Wood-Nymph

The Common Wood-nymph (Cercyonis pegala) is a North American butterfly in the family Nymphalidae. It is also known as the Wood-nymph, Grayling,Blue-eyed Grayling, and the Goggle Eye.

Canyonland Satyr

Comments: Brushy ravines, canyon bottoms and wooded hillsides in arid regions.

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.

Callippe Fritillary

The Callippe Fritillary (Speyeria callippe) is a fritillary from North America.

Coronis Fritillary

The Coronis Fritillary (Speyeria coronis) is a butterfly of the Nymphalidae family of North America. It is common from Baja California to Washington and west to Colorado and western South Dakota and once reported in Alberta.

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.

Northwestern Fritillary

Speyeria hesperis, the northwestern fritillary, is a butterfly of the family Nymphalidae. It is found in the northwestern United States and western Canada, as far east as Manitoba and the Dakotas.

Mormon Fritillary

The Mormon Fritillary (Speyeria mormonia) is a butterfly of the Nymphalidae family of North America. It is common from northern California to British Columbia and west Saskatchewan, Colorado, and western South Dakota.

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 ↓

Queen

The queen butterfly (Danaus gilippus) is a North and South American butterfly in the family Nymphalidae with a wingspan of 70–88 mm (2.8–3.5 in). It is orange or brown with black wing borders and small white forewing spots on its dorsal wing surface, and reddish ventral wing surface fairly similar to the dorsal surface. The ventral hindwings have black veins and small white ...more ↓

Monarch

The monarch butterfly (Danaus plexippus) is a milkweed butterfly (subfamily Danainae) in the family Nymphalidae. It may be the most familiar North American butterfly. The monarch butterfly is not currently listed under the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) or protected specifically under U.S. domestic laws. Its wings feature ...more ↓

Colorado Hairstreak

The Colorado Hairstreak Butterfly (Hypaurotis crysalus) is a montane butterfly native to oak scrubland in the southwestern United States and northern Mexico. It was designated the state insect of Colorado in 1996.

Gray Hairstreak

The Gray Hairstreak (Strymon melinus), is one of the most common hairstreaks in North America, ranging over nearly the entire continent. It occurs also throughout Central America and in northern South America.

Behr's Hairstreak

The Behr's Hairstreak (Satyrium behrii) is a butterfly of the Lycaenidae family. It is found in western North America from western Texas north and west through New Mexico, Arizona and southern California to British Columbia.

Banded Hairstreak

The Banded Hairstreak (Satyrium calanus) is a butterfly in the family Lycaenidae.

California Hairstreak

The California Hairstreak (Satyrium californica) is a butterfly of the Lycaenidae family. It is found from British Columbia south to southern California and east to Colorado.

Striped Hairstreak

The Striped Hairstreak (Satyrium liparops) 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.

Coral Hairstreak

The Coral Hairstreak (Satyrium titus) is a North American butterfly in the family Lycaenidae.

Western Green Hairstreak

Callophrys affinis, the western green hairstreak or immaculate green hairstreak, is a butterfly of the Lycaenidae family. It is found in western Canada and the western United States.

Brown Elfin

The Brown Elfin (Callophrys augustinus) is butterfly of the Lycaenidae family. It is found in 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. Subspecies ...more ↓

Western Pine Elfin

The Western Pine Elfin (Callophrys eryphron) 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 ...more ↓

Juniper Hairstreak

Callophrys gryneus, the juniper hairstreak or olive hairstreak, is a butterfly native to North America. It belongs in the family Lycaenidae.

Moss's Elfin

The Moss's Elfin (also Stonecrop Elfin and Schryver's Elfin) (Callophrys mossii) is a butterfly native to North America that belongs in the family Lycaenidae. It is found from British Columbia south to southern California and east to Wyoming and Colorado in isolated populations. The habitat consists of rocky outcrops, woody canyons and cliffs.

Hoary Elfin

The Hoary Elfin (Callophrys polios) is butterfly of the Lycaenidae family. It has a very local distribution from Maine south to New Jersey and in the Appalachian Mountains to Virginia, west across the Great Lakes states and the southern prairie provinces and north to Alaska. Along the Pacific Coast it is found to northern California and in the Rocky Mountains south to northern ...more ↓

Sheridan's Green Hairstreak

Callophrys sheridanii, common name Sheridan's Hairstreak and Sheridan's Green Hairstreak, is a butterfly in the Lycaenidae family. It is found along the south coast of British Columbia and parts of Nevada, Arizona, Saskatchewan, North Dakota, and New Mexico. In 2009, this species was adopted as the U.S. state butterfly for Wyoming.

Blue Copper

The Blue Copper (Lycaena heteronea) is a butterfly of the Lycaenidae family. It is found in the western Canada and USA.

Great Copper

Comments: Moist areas: prairie swamps, marshes, weedy fields, and meadows. Hosts are in genus Rumex, incl. R. obtusifolius.

Bronze Copper

Lycaena hyllus, the bronze copper, is a butterfly of the lycaenids family found in North America.

Silvery Blue

The Silvery Blue (Glaucopsyche lygdamus) is a small butterfly native to North America. Upperside is a light blue in males, a dull grayish blue in females. Underside is gray with single row of round spots of differing sizes depending upon region.

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.

Ancilla Blue

Euphilotes ancilla, the Rocky Mountain dotted blue, is a species of butterfly of the family Lycaenidae. It is found from Washington south to California and southern Alberta and Saskatchewan south through the Rockies and high plains to Wyoming, Colorado, Utah, and northwestern New Mexico.

Dotted Blue

Euphilotes enoptes is intimately associated with its host plants, where both it and the plants live in different elevations of the same geographic region (Peterson 1995). Within this region they tend to live in sun-exposed rocky or sandy flats or slopes in foothills, mountains, desert, and along coast (Opler, 2001).

Habitat Regions: ...more ↓

Marine Blue

The Marine Blue or Striped Blue (Leptotes marina) is a butterfly of the Lycaenidae family. It is found in from South America through Mexico up to Southern Texas, Arizona and California.

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 ↓

Eastern Tailed-Blue

The Eastern Tailed-blue or Eastern Tailed Blue (Cupido comyntas), also known as Everes comyntas, is a common butterfly of eastern North America. Males are generally blue on the upperside of their wings while females are lighter blue to brown or charcoal in coloring, but there are also varieties of purple and pink found in both sexes. The underside coloration ranges ...more ↓

Reakirt's Blue

The Reakirt's Blue (Hemiargus isola) is a butterfly of the Lycaenidae family. It is found in Central America and the extreme southern U.S., isola migrates regularly throughout most of the U.S. almost to the Canadian border, and very rarely into the southern Prairies.

Arctic Blue

Agriades glandon, the Arctic blue or Glandon blue is a butterfly of the family Lycaenidae. In North America it is found from Alaska east to Newfoundland, south through the mountains to Washington, northern Arizona, and northern New Mexico. In Europe, it is found in mountainous areas like the Pyrenees and Alps, as well as the far north. It is also found in parts of ...more ↓

Plebejus acmon

Plebejus acmon, the Acmon blue, is a North American butterfly. It ranges mainly in California but can be seen north to Oregon and south through Baja California. The tops of the wings are blue with dark edges in males and brown in females. Its underside is white with black spots for both sexes with a red-orange band on the hindwing. Adults feed on nectar while caterpillars ...more ↓

Plebejus icarioides

Aricia icarioides, or Boisduval's blue, is a butterfly of the Lycaenidae family found in North America.

Lupine Blue

Aricia lupini, the lupine blue, is a butterfly of the Lycaenidae family. It is found from south-western Canada, south through much of mountainous and intermountain western United States and high plains to northern Mexico.

Lycaeides melissa

The Melissa Blue (Lycaeides melissa) is a butterfly of the Lycaenidae family. It is found in Western North America, from Canada to Mexico. The Karner Blue (Lycaeides melissa samuelis) is a subspecies of the Melissa Blue, and was described by the novelist/lepidopterist Vladimir Nabokov. It is sometimes placed in the genus Plebejus.

Edited by Colorado Parks and Wildlife, some rights reserved (CC BY-SA)