Bugs Guide

Bugs Guide for Colorado

Mountains, alpine trails, wildlife, and wildflower summers

Bug highlights, common sightings, and the best places to look for bugs in Colorado. Use the highlight list to start quickly, then work through the full guide for a broader local view.

Sightings

175

Species

61

Active Months

12

Bugs guide illustration

Category Overview

Bugs across Colorado

This guide focuses on butterflies, bees, beetles, and other small species within Colorado's wider region guide, making local walks, gardens, and close-up exploring feel richer.

Latest Sightings

Recent insect sightings in Colorado

A recent look at insect sightings across Colorado.

Sightings Map

See where insect sightings cluster

Start wide, then zoom in to see where insect sightings cluster across Colorado.

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Top Highlights

Top 5 bugs to look for in Colorado

These bugs are snapped the most across this region.

Places to Start

Best places for bugs in Colorado

These place guides connect well with the bugs covered in this region.

Full Guide

Full Colorado bugs list

The complete ranked list for this guide, ordered by sightings count.

61 species ranked
1

Seven-spotted Lady Beetle

23 snaps
2

Japanese Beetle

22 snaps
3

Bold Jumping Spider

10 snaps
4

Bee

7 snaps
5

Mourning Cloak

7 snaps
6

Western Tiger Swallowtail

7 snaps
7

Chryxus Arctic

6 snaps
8

Red Admiral

5 snaps
9

Two-tailed Swallowtail

4 snaps
10

Asian Lady Beetle

3 snaps
11

Blue Fungus Beetle

3 snaps
12

Brown-belted Bumble Bee

3 snaps
13

Echo Azure

3 snaps
14

European Woolcarder Bee

3 snaps
15

Garden Snail

3 snaps
16

House Centipede

3 snaps
17

Paddle-tailed Darner

3 snaps
18

Painted Lady

3 snaps
19

Rocky Mountain Parnassian

3 snaps
20

Anise Swallowtail

2 snaps
21

Bicolored Striped Sweat Bee

2 snaps
22

Cabbage White

2 snaps
23

Common Ringlet

2 snaps
24

Glover's Silkmoth

2 snaps
25

Goldenrod Crab Spider

2 snaps
26

Ladybug

2 snaps
27

Obscure Darkling Beetle

2 snaps
28

Small Milkweed Bug

2 snaps
29

Tule Bluet

2 snaps
30

White-spotted Sawyer

2 snaps
31

Zebra Jumping Spider

2 snaps
32

Alfalfa Leafcutter Bee

1 snaps
33

American Bumble Bee

1 snaps
34

Bedbug

1 snaps
35

California Flattened Jumping Spider

1 snaps
36

Chironomus

1 snaps
37

Colorado Black-notched Bumble Bee

1 snaps
38

Colorado Soldier Beetle

1 snaps
39

Common Pill Woodlouse

1 snaps
40

Elm Leaf Beetle

1 snaps
41

Green Bottle Fly

1 snaps
42

Greenish Blue

1 snaps
43

Hunt's Bumble Bee

1 snaps
44

Indiscriminate Cuckoo Bumble Bee

1 snaps
45

Milbert's Tortoiseshell

1 snaps
46

Narcissus Bulb Fly

1 snaps
47

Nevada Bumble Bee

1 snaps
48

Orange-Legged Furrow Bee

1 snaps
49

Ornate Checkered Beetle

1 snaps
50

Peck's Skipper

1 snaps
51

Persius Duskywing

1 snaps
52

Reakirt's Blue

1 snaps
53

Silver-spotted Tiger Moth

1 snaps
54

Silvery Checkerspot

1 snaps
55

Spotted Pine Sawyer

1 snaps
56

Two-spotted Lady Beetle

1 snaps
57

Variegated Fritillary

1 snaps
58

Western Black Widow

1 snaps
59

Western Paper Wasp

1 snaps
60

White-lined Sphinx

1 snaps
61

Woodlouse Spider

1 snaps

Other Guides

Keep exploring Colorado

Switch from bugs to birds and flowers for a broader view of Colorado's wildlife and nature.