Beetles in Colorado

Family Cantharidae Soldier beetles
Family Carabidae Ground Beetles
Family Cerambycidae Longhorn beetles.
Family Chrysomelidae Leaf Beetles
Family Cleridae Checkered beetles
Family Coccinellidae Ladybird Beetles
Family Curculionidae Snout beetles or Weevils
Family Dermestidae Skin beetles
Family Elateridae Click beetles
Family Erotylidae Fungus beetles
Family Scarabaeidae Scarab beetles
Family Silvanidae Flat Bark beetles
Family Tenebrionidae Darkling beetles
Family Unidentified section Unidentified

Family Curculionidae -- Weevils and Snout Beetles. over 40,000 species worldwide.

This is a Black Vine Weevil, found 18 May 2010 on my kitchen carpet in Colorado Springs, CO. Body length is 1 cm. Identification was made by the experts on www.BugGuide.net. It is native to Europe, but common in North America as well. They are herbivores, the adults eating leaves, and the grubs feed on roots.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Curculionidae
Subfamily: Entiminae
Genus: Otiorhynchus
Species: sulcatus


There has been a lot of damage to the Colorado forests due to the Mountain Pine Beetle. I haven't been able to take a picture of one yet, but I was able to get this picture of the tree sap which has seeped out of a tree due to the holes that this beetle put in the tree. These are called pitch tubes. Photographed on 21 August 2012, in the EagleCrest subdivison near Florissant, Teller county, Colorado. This tree had blown over in a high wind about 3 years ago, and the tree was probably attacked by the pine beetles after it was down. Healthy trees are not as likely to be killed by these beetles.

The Colorado State University has a discussion of these beetles at
www.ext.colostate.edu/pubs/insect/05528.html.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Curculionidae
Subfamily: Scolytinae
Genus: Dendroctonus
Species: D. ponderosae


Family Carabidae -- Ground Beetles

This one was found 6 August 2009 in Colorado Springs, CO. It looks like a good match to Anisodactylus sanctaecrucis as pictured in bugguide.net/node/view/47016.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Carabidae
Subfamily: Harpalinae
Tribe: Harpalini
Genus: Anisodactylus
Species: sanctaecrucis

This is another Ground Beetle. It is in the genus Pasimachus, and may be the species sublaevis, based on the narrow blue border around parts of the shell. It could also be the species Pasimachus strenuus, due to the smooth shell. Found on 23 June 2010 in Colorado Springs. It seemed to get turned upside down frequently, and was not able to right itself. The back legs seemed useless. It was a large beetle, with a length of about 2.5 cm.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Carabidae
Genus: Pasimachus
Species: sublaevis or strenuus



Family Scarabaeidae (Scarab Beetles)

A Ten-Lined June Beetle. Picture taken 15 July 2008, in Colorado Springs. Some people also call this one a "hissing beetle", since if they feel threatened, they will make a fairly loud hissing noise. This one didn't, but I don't think it was feeling good. It was missing one leg on its right side. This one is a male, since the females have much shorter antenna.

Kingdom: Animalia (Animals)
Phylum: Arthropoda (Arthropods)
Class: Insecta (Insects)
Order: Coleoptera (Beetles)
Suborder: Polyphaga (Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles)
Superfamily: Scarabaeoidea (Scarab, Stag and Bess Beetles)
Family: Scarabaeidae (Scarab Beetles)
Subfamily: Melolonthinae (May Beetles and June Bugs)
Tribe: Melolonthini
Genus: Polyphylla (Lined June Beetles)
Species: decemlineata (Ten-lined June Beetle, but there are several species that look nearly identical.)


Another one, appears to be the same species. This one was found on 6 July 2010 in Colorado Springs. About 7/8" long, it is also a male.
These are June Beetles, but the specific species is unknown. This pair was found 22 July 2008, and several others have been seen since.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Scarabaeidae
Subfamily: Melolonthinae
Genus: Phyllophaga (May Beetles, June bugs, June Beetles) There are more than 260 species in this genera.


Family Tenebrionidae -- Darkling beetles. About 20,000 species worldwide.

This is a Darkling beetle, Tenebrionidae family, and the Eleodes genus, since that one has the red stripe down it's back. Sometimes called a Stink Beetle?

It is about 1/2" long. The picture was taken on 3 August 2008 in Colorado Springs.

Identification was provided by www.Bugguide.net October 18, 2016.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Suborder: Polyphaga
Superfamily: Tenebrionoidea
Family: Tenebrionidae
Genus: Eleodes (Desert Stink Beetles)
Subgenus: Eleodes
Species: hispilabris

There are about 129 species within this genera.

This is another Darkling beetle, and appears to be the same species as the photo above. It was crawling on my garage floor on 4 November 2011. It had a 2.4 cm body length.
Another one in the Eleodes Genus. The experts on bugguide.net identified a different one down to the species level, and the pictures of it look identical to mine. It looks very similar to the one above, except for the lack of that red stripe. It was found on 22 April 2010, entering my open garage door. It was about 7/8" in length.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Suborder: Polyphaga
Superfamily: Tenebrionoidea
Family: Tenebrionidae
Genus: Eleodes
Species: hispilabris

This is another one, identical to the one above. This one was found in my garage on 8 June 2011. Body length 2.8cm.
Another beetle in the Eleodes genus, maybe the species longicollis. This one is about 1" long. It was found in Elbert Co., CO on 30 September 2008. It's color is black, but some red is visible if the light is from the right direction.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Suborder: Polyphaga
Superfamily: Tenebrionoidea
Family: Tenebrionidae
Genus: Eleodes


This is another Darkling beetle. Pictures taken 17 May 2008 in Colorado Springs.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Suborder: Polyphaga
Superfamily: Tenebrionoidea
Family: Tenebrionidae
Subfamily: Opatrinae
probably in the Embaphion Genus.


Another Darkling beetle that appears to be close to the same species as the one found two years ago, photo above. Maybe same Genus. It is about 1.5 cm in length. Found in Colorado Springs on 3 June 2010.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Suborder: Polyphaga
Superfamily: Tenebrionoidea
Family: Tenebrionidae
Subfamily: Opatrinae
probably in the Embaphion Genus.

Another one, identical, found April 17, 2017, crawling across the floor of my garage.


Another Darkling beetle, found on 27 October 2011 in Colorado Springs, CO. Appears to be identical to the photos above.
Another Darkling beetle, picture taken on 23 August 2008 in Colorado Springs. Genus and species unknown, but it looks very close to the two preceding Darkling Beetles.

In April 2011, the experts on Bugguide came up with a tentative genus and species for this beetle.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Suborder: Polyphaga
Superfamily: Tenebrionoidea
Family: Tenebrionidae
Subfamily: Pimeliinae
Tribe: Asidini
Genus: Asidopsis
Species: opaca


Another beetle very similar to the one above, except for the shape of part of the shell. Four of these were found under an old dog house that was being demolished on 7 August 2009 in Colorado Springs.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Suborder: Polyphaga
Superfamily: Tenebrionoidea
Family: Tenebrionidae


Family Chrysomelidae = Leaf Beetles

This appears to be a Leaf Beetle, in the genus Trirhabda.

This one was found in our kitchen sink on 24 February 2009. It was about 4mm long, not counting antenna.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera = Beetles
Suborder: Polyphaga = Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles
Superfamily: Chrysomeloidea = Long-horned and Leaf Beetles
Family: Chrysomelidae = Leaf Beetles
Subfamily: Galerucinae = Skeletonizing leaf beetles
Genus: Xanthogaleruca = Elm Leaf Beetle
Species: luteola


A leaf beetle, or something closely related to a Leaf Beetle. Captured on 15 May 2009 in El Paso Co., CO. It was about 5mm in length. The markings are close to those of the Cottonwood Leaf Beetle, but not a match.

Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder: Polyphaga
Superfamily: Chrysomeloidea
Family: Chrysomelidae (leaf beetles)
Subfamily: Chrysomelinae
Genus: Zygogramma (probably)
Species: conjuncta (maybe)


This is a Spotted Cucumber Beetle. It was found on a Sunflower plant on 29 July 2010 in my back yard in Colorado Springs. It was 5mm long, not counting antennas.

In the larval form, it is known as the southern corn rootworm.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Chrysomelidae
Genus: Diabrotica
Species: D. undecimpunctata
Sub-species: howardi

This appears to be a Black-striped Yellow Leaf Beetle. Found on 11 August 2010 in Colorado Springs. About 10 mm long.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Superfamily: Chrysomeloidea
Family: Chrysomelidea
Subfamily: Galerucinea
Genus: Xanthogaleruca
Species: X. luteola

This appears to be another Black-striped Yellow Leaf Beetle, but this one was only 5 mm long. Found on 31 July 2011 in Colorado Springs.

Another one, found on 13 July 2012 at the Fountain Creek Nature Center. This one was less than 3mm in length, and on a Milkweed plant.

They are back again. This time, I find that my Blue Spruce tree is full of them on 12 August 2013. About 5mm in length.


Family Erotylidae = fungus beetles.

This is a Pleasing Fungus Beetle. It was found by Alyssa Erickson on 11 June 2011 on a hiking trail near Colorado Springs, Colorado.

This beetle develops on soft cork fungi on Aspen, Ponderosa Pine and other logs in forested areas, according to articles found on the internet.

Kingdom: Animalia
Phylum: Arthropoda
Class: Hexapoda
Order: Coleoptera
Family: Erotylidae
Genus: Gibbifer
Species: californicus


Family Cerambycidae = Longhorn beetles. Over 20,000 species worldwide.

This is a Red Milkweed beetle, feeding on the leaves of a Milkweed plant (Asclepias syriaca). The picture was taken at the Fountain Creek Nature Center south of Colorado Springs, CO on 30 July 2008. These insects store some of the toxic substances from the Milkweed plant, and as a result become toxic or at least distasteful to predators.

The second picture is of another individual, taken at the Fountain Creek Nature Center, 7 September 2008. The third, on 3 August 2009, same place.

The fourth picture shows a male/female pair on 21 August 2010 at the Fountain Creek Nature Center.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Cerambycidae
Genus: Tetraopes
Species: T. tetrophthalmus



This is a Red Longhorn Beetle, found at the Fountain Creek Nature Center on July 16, 2016

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Cerambycidae
Genus: Batyle
Species: B. suturalis



Family Coccinellidae (Ladybird Beetles)

Ladybird Beetles. Also called Lady Bugs, but they are not bugs; they are beetles. This one is named the Convergent Ladybird beetle, based on the two prominent white lines on the head which converge to one place. Most species will have a different number and arrangement of spots, but this species can have anywhere up to 13 spots. There are also color variations.

A couple of days before I found the ladybirds on my rose bushes, I found aphids. When I found the ladybirds, no more aphids.

Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles)
Superfamily Cucujoidea (Flower, Flat Bark and Ladybird Beetles)
Family Coccinellidae (Ladybird Beetles)
Genus: Hippodamia
Species: Convergens



Another ladybird beetle. The first two photos were taken on 19 June 2009, at the Fountain Creek Nature Center, Fountain, Colorado. This one is in a different genus from the above ladybird. This particular species, known as the seven-spotted lady beetle, or simply C-7, is the one that is sometimes used as biological control agents, since they can clean up an infestation of aphids quickly.

The third picture was taken in Colorado Springs on 18 June 2009.

Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles)
Superfamily Cucujoidea (Flower, Flat Bark and Ladybird Beetles)
Family Coccinellidae (Ladybird Beetles)
Genus: Coccinella
Species: septempunctata


Still another Ladybird beetle. This one, with the colors reversed from what is commonly seen, is a Chilocorus stigma, commonly known as the twice-stabbed lady beetle. Like other Ladybird beetles, it is beneficial, and helps to control aphids, etc. It was found and photographed by Alyssa Erickson in April 2011 in Colorado Springs, CO.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Coccinellidae (Ladybird beetles)
Genus: Chilocorus
Species: C. stigma

This one is the Asian Lady beetle, Harmonia axyridis. It was found on 5 August 2009 in Colorado Springs, CO. This beetle was originally from eastern Asia, but was introduced into North America to control aphids.

Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles)
Superfamily Cucujoidea (Flower, Flat Bark and Ladybird Beetles)
Family Coccinellidae (Ladybird Beetles)
Genus: Harmonia
Species: axyridis

Another Ladybird beetle, this one named the Giant Lady Beetle. It seems that it is not seen often, so not many photos of it are available. It was found by Alyssa Erickson on 11 June 2011 on a hiking trail near Colorado springs, Colorado.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Coccinellidae (Ladybird beetles)
Genus: Anatis
species: lecontei

This is the larvae of some genus LadyBird beetle, but we have not identified which genus and species. It was found by Alyssa Erickson in August 2012 in Colorado springs, Colorado.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Coccinellidae (Ladybird beetles)

This one was difficult. It took the experts at BugGuide.net several days to come up with an identification. According to them, this is the larvae of Cryptolaemus montrouzieri, common name Mealybug Ladybird. According to Wikepedia, it is endemic to Queensland and New South Wales, Australia, but has been exported as a biological control agent. It came to California in 1891 to control the citrus mealybug. This larvae looks nothing like the adult. I have no idea what it is doing in Colorado Springs, CO. It was found on June 7, 2017, in my front yard in Colorado Springs. It was small, not more than 2 mm in size.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Coccinellidae
Genus: Cryptolaemus
Species: C. montrouzieri (Mealybug Ladybird)


Family Silvanidae -- Flat Bark beetles

A small beetle in the family of Flat Bark Beetles. This one is a Silvanus bedentatus, 2mm in length not counting antenna. It was found crawling on a new piece of cedar fencing on 9 November 2009 in Colorado Springs. The identification was provided by the experts on www.BugGuide.net.

I used a bellows extension on my Canon DSLR camera to get this macro shot.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Silvanidae
Genus: Silvanus
Species: bidentatus



Family Dermestidae -- Skin beetles, AKA larder beetles, hide or leather beetles, carpet beetles, and khapra beetles. Approximately 500 to 700 species worldwide.

Andreas Hermann is a scientist in Germany who specializes in this family of beetles. He has a large collection of photos and data on about 400 species.
These were found in a plastic bag of macaroni or noodles that should have been thrown out years ago. They are the Larger Cabinet beetle (Trogoderma inclusum) although the larvae of other insects that can get into your cereal foods stored for too long look similar.

The first picture is of the one adult that I found. It is about 2mm in length, smaller than the larvae, and even though it was dead and somewhat beaten up, it still matched the pictures of T. inclusum that I found on the internet. The second picture is the back end of a larvae, and shows the cluster of hairs which are found on this species. The larvae were about 5mm in length. These pictures were taken on 26 November 2009 in colorado Springs.

The fourth picture is a 4 mm adult found near a box of Rice-A-Roni which had been outdated a year earlier. Inside the box were a large number of this beetle's relatives. Taken 17 May 2010 in Colorado Springs, CO.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Dermestidae
Genus: Trogoderma
Species: inclusum




Family Cantharidae -- Soldier beetles

This is a Colorado Plains Soldier Beetle, Chauliognathus basalis. It can be found on the plains of Colorado, Kansas, Oklahoma and Texas. This one was found on 27 September 2009 in Colorado Springs. Identification was made by the experts on bugguide.net/node/view/368722#616580. There is also a Colorado Mountain Soldier Beetle, found in the foothills and mountains.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Suborder: Polyphaga
Superfamily: Elateroidea (click, firefly and soldier beetles)
Family: Cantharidae
Genus: Chauliognathus
Species: basalis


Family Elateridae -- Click Beetles. 965 species in North America.

This Click beetle was found on 15 July 2010, in Colorado Springs. It had been attracted to a small light that was on overnight, and had fallen into a bucket. About 1.5 cm long. Identification down to genus and species has not been made yet.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Superfamily: Elateroidea Click, Firefly and Soldier beetles
Family: Elateridae - Click beetles



Family Cleridae -- Checkered beetles. About 3,500 species worldwide, about 500 in N. America.

This Red Yucca Soldier Beetle was found on 7 July 2010 in my garage in Colorado Springs, CO. Length is 1.3 cm.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Cleridae
Subfamily: Clerinae
Genus: Enoclerus
Species: spinolae


Not identified yet

Found on 10 August 2010 in Colorado Springs. About 11 mm long. Not identified yet. It has some resemblance to the Trout-Stream beetle.