Bees in Colorado: identification guide and best places to start
Yes, bees are found throughout Colorado. The best places to start looking are your own backyard, local gardens, and mountain meadows. Most species are active from April through September on warm, sunny days. This guide covers where to find them, when to look, and how to identify the most common types.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.

Melecta pacifica fulvida · Jared Shorma CC BY

Two-spotted Longhorn Bee · Jared Shorma CC BY

Orange-tipped Woodborer · Jared Shorma CC BY
- 8
- species recorded
- 0
- GBIF records
- July, June, August
- peak months
Bees aren't established in Colorado, so you might be wondering:
Verified species, source iNaturalist
105 types of bees recorded in Colorado
105 bee species have a verified observation record in Colorado across bees (clade Anthophila), each with at least 10 confirmed sightings. The 50 most frequently recorded are shown below.
4 of the 50 shown are recorded as introduced to Colorado rather than native.
Also recorded in Colorado
| # | Species | Scientific name | Records |
|---|---|---|---|
| 13 | European Woolcarder BeeIntroducedAnthidium manicatum | Anthidium manicatum | 423 |
| 14 | Oblique Longhorn BeeEpimelissodes obliquus | Epimelissodes obliquus | 414 |
| 15 | Red-belted Bumble BeeNativeBombus rufocinctus | Bombus rufocinctus | 393 |
| 16 | Orange-tipped WoodborerLithurgopsis apicalis | Lithurgopsis apicalis | 360 |
| 17 | Indiscriminate Cuckoo Bumble BeeBombus insularis | Bombus insularis | 351 |
| 18 | Forest Bumble BeeBombus sylvicola | Bombus sylvicola | 334 |
| 19 | Western Bumble BeeBombus occidentalis | Bombus occidentalis | 325 |
| 20 | Orange-legged Furrow BeeHalictus rubicundus | Halictus rubicundus | 303 |
| 21 | Golden-belted Bumble BeeNativeBombus kirbiellus | Bombus kirbiellus | 276 |
| 22 | Golden Sweat BeeAugochlorella aurata | Augochlorella aurata | 271 |
| 23 | Tripartite Sweat BeeHalictus tripartitus | Halictus tripartitus | 269 |
| 24 | Bicolored Striped Sweat BeeAgapostemon virescens | Agapostemon virescens | 240 |
| 25 | Fuzzy-Horned Bumble BeeBombus mixtus | Bombus mixtus | 233 |
| 26 | Green Small-MasonHoplitis fulgida | Hoplitis fulgida | 230 |
| 27 | Western Leafcutter BeeMegachile perihirta | Megachile perihirta | 206 |
| 28 | Morrison's Bumble BeeNativeBombus morrisoni | Bombus morrisoni | 163 |
| 29 | Alfalfa Leafcutter BeeIntroducedMegachile rotundata | Megachile rotundata | 162 |
| 30 | Two-spotted Bumble BeeBombus bimaculatus | Bombus bimaculatus | 153 |
| 31 | Southern Plains Bumble BeeNativeBombus fraternus | Bombus fraternus | 147 |
| 32 | Tansy Mustard Sweat BeeLasioglossum sisymbrii | Lasioglossum sisymbrii | 133 |
| 33 | Bumblebee-like Digger BeeAnthophora bomboides | Anthophora bomboides | 126 |
| 34 | Sunflower Mining BeeAndrena helianthi | Andrena helianthi | 124 |
| 35 | Pruinose Squash BeeXenoglossa pruinosa | Xenoglossa pruinosa | 123 |
| 36 | Parallel Leafcutter BeeMegachile parallela | Megachile parallela | 101 |
| 37 | Black-tailed Bumble BeeBombus melanopygus | Bombus melanopygus | 100 |
| 38 | California Bumble BeeBombus californicus | Bombus californicus | 98 |
| 39 | Orange-tipped Wood-diggerAnthophora terminalis | Anthophora terminalis | 97 |
| 40 | Sunflower Chimney BeeDiadasia enavata | Diadasia enavata | 92 |
| 41 | Anthophora montanaAnthophora montana | Anthophora montana | 92 |
| 42 | Common Longhorn BeeMelissodes communis | Melissodes communis | 92 |
| 43 | Prunus Miner BeeAndrena prunorum | Andrena prunorum | 90 |
| 44 | Oblong Woolcarder BeeIntroducedAnthidium oblongatum | Anthidium oblongatum | 84 |
| 45 | Milwaukee Mining BeeAndrena milwaukeensis | Andrena milwaukeensis | 79 |
| 46 | Black-and-gray Leafcutter BeeMegachile melanophaea | Megachile melanophaea | 76 |
| 47 | Urbane Digger BeeAnthophora urbana | Anthophora urbana | 74 |
| 48 | Silver-tailed PetalcutterMegachile montivaga | Megachile montivaga | 68 |
| 49 | Unarmed Leafcutter BeeMegachile inermis | Megachile inermis | 68 |
| 50 | Blue Orchard BeeOsmia lignaria | Osmia lignaria | 67 |
Plus 55 more established bees species beyond the top 50. And 150 more recorded only rarely (fewer than 10 verified sightings). Counts from verified iNaturalist observations. Photos by iNaturalist observers, reused under the licence each observer chose.
Real sighting data, source iNaturalist
52,296 verified observations on iNaturalist of bee have been recorded in Colorado, most often in July, June, August.
When bee are recorded in Colorado
Yes, bees are found throughout Colorado. The best places to start looking are your own backyard, local gardens, and mountain meadows. Most species are active from April through September on warm, sunny days. This guide covers where to find them, when to look, and how to identify the most common types.
Where are people most likely to notice bees in Colorado?
Backyards with flowers, group gardens, parks, and along hiking trails are prime spots. Look for bees visiting blossoms of native plants like coneflowers, sunflowers, and clover. For more on Colorado's wildlife, check out ourColorado wildlife page.
In Colorado, bees sightings usually improve when you slow down and match your first stop to where people are most likely to notice them. Use thestate wildlife huband theroute guideto narrow your first area, then check access, weather, and distance before you settle in. A short walk with one clear viewing plan often beats covering too much ground, especially when habitat changes fast from open edges to brush, wetlands, timber, shoreline, or neighborhood cover.
What season and weather patterns help with bee spotting?
Bees are most active from late spring through early fall. They prefer temperatures above 60°F with calm winds. Cloudy or rainy days mean lower activity. Early morning and late evening are also less productive.
Most misses happen when people arrive at the wrong hour or expect nonstop activity. Build around what season or weather patterns help, keep one backup area in mind, and use theanimal facts pageplustour planning ideasto compare what a realistic outing looks like in Colorado. If movement slows, stay longer at one promising spot, listen for calls or watch for edge movement, and reset around weather, light, water, or feeding changes instead of jumping to a totally new area too early.
What are simple ID cues that separate bees from lookalikes?
Honey bees are small with thin waists and carry pollen on their hind legs. Bumble bees are larger, fuzzy, and often seen buzzing loudly. Carpenter bees are big and shiny with a black abdomen. Unlike flies, bees have two pairs of wings and often have pollen baskets. Learn more about bees on ourbee identification page.
See ourstate animal guidefor the next step.
What should you look for when observing bee behavior?
Watch for foraging patterns. Bees visit flowers systematically. Check for pollen loads on their legs. Also note nesting sites: bumble bees nest in the ground or old rodent holes, while carpenter bees bore into wood. For a deeper look at bee identification, visit ourbee species guide.
How can you create a bee-friendly space in your Colorado yard?
Plant a variety of native flowers that bloom from spring to fall. Avoid using pesticides. Provide a shallow water source with pebbles for landing. Leave some bare ground for ground-nesting species. Consider adding abee-themed stickerto your collection.
Where can you find bee-themed gear to show your appreciation?
Honey Bee in Flight Women's T-Shirt
A comfortable fitted tee featuring a honey bee in flight, perfect for everyday wear.Check Price and Availability
Let It Bee Honey Bee Graphic Tee
A relaxed graphic tee with a fun bee message.Check Price and Availability
Custom Embroidery Bee Baseball Cap
A cap with a detailed bee embroidery, great for outdoor outings.Check Price and Availability
You can also find more bee items on ourstickers page.
Honey Bee Tumbler Wrap Laser Svg 20oz Laser Engraved Honeycomb Tumbler Wrap Floral 20 oz Tumbler Laser File Svg Design Laser Engraving Svg
A strong match for this wildlife page and an easy next click after the guide.Check Price and Availability
What are some frequently asked questions about bees in Colorado?
**What is the most common bee in Colorado?** The western honey bee (Apis mellifera) is widespread, especially in urban areas. **Are there aggressive bees in Colorado?** While most bees are docile, Africanized honey bees have been reported in southern parts of the state. **Do bees in Colorado hibernate?** Bumble bee queens hibernate underground over winter, while honey bees cluster in their hives.
See ourtour planning ideasfor the next step.
Plan your trip
Best time to see bee in Colorado: July, June, August
See the month-by-month sighting calendar.
Plan your bee sighting in Colorado
There are no verified bee records for Colorado, which fits how uncommon they are here. See the GBIF records.
Where to look in Colorado
- Bent's Old Fort National Historic Site · Wildlife Watching, Birdwatching · Find hotels
- Black Canyon Of The Gunnison National Park · Wildlife Watching, Birdwatching · Find hotels
- Colorado National Monument · Wildlife Watching · Find hotels
- Curecanti National Recreation Area · Wildlife Watching, Birdwatching · Find hotels
- Dinosaur National Monument · Wildlife Watching, Birdwatching · Find hotels
- Great Sand Dunes National Park & Preserve · Wildlife Watching, Birdwatching · Find hotels
Frequently asked questions
What bee species live in Colorado?+
Backyards with flowers, group gardens, parks, and along hiking trails are prime spots. Look for bees visiting blossoms of native plants like coneflowers, sunflowers, and clover. For more on Colorado's wildlife, check out ourColorado wildlife page. In Colorado, bees sightings usually improve when you slow down and match your first stop to where people are most likely to notice them. Use thestate wildlife huband theroute guideto narrow your first area, then check access, weather, and distance before you settle in. A short walk with one clear viewing plan often beats covering too much ground, especially when habitat changes fast from open edges to brush, wetlands, timber, shoreline, or neighborhood cover.
Where can you see bees in Colorado?+
Backyards with flowers, group gardens, parks, and along hiking trails are prime spots. Look for bees visiting blossoms of native plants like coneflowers, sunflowers, and clover. For more on Colorado's wildlife, check out ourColorado wildlife page. In Colorado, bees sightings usually improve when you slow down and match your first stop to where people are most likely to notice them. Use thestate wildlife huband theroute guideto narrow your first area, then check access, weather, and distance before you settle in. A short walk with one clear viewing plan often beats covering too much ground, especially when habitat changes fast from open edges to brush, wetlands, timber, shoreline, or neighborhood cover.
When is the best time to see bees in Colorado?+
Backyards with flowers, group gardens, parks, and along hiking trails are prime spots. Look for bees visiting blossoms of native plants like coneflowers, sunflowers, and clover. For more on Colorado's wildlife, check out ourColorado wildlife page. In Colorado, bees sightings usually improve when you slow down and match your first stop to where people are most likely to notice them. Use thestate wildlife huband theroute guideto narrow your first area, then check access, weather, and distance before you settle in. A short walk with one clear viewing plan often beats covering too much ground, especially when habitat changes fast from open edges to brush, wetlands, timber, shoreline, or neighborhood cover.
Keep exploring
More places to see bee
More wildlife in Colorado
Common questions about bees











