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Welcome to the Colorado State University Extension Western Colorado Entomology web site. This site was created and is maintained by Tri River Area Extension Entomology & Agronomy, and is dedicated to presenting factual information on the insects and insect related issues affecting western Colorado.

Native Insects, Coleoptera-Beetles   arrow

Coleoptera-Beetles

Anobiidae

Spider Beetles
Colorado Insects of Interest Fact Sheet (pdf)
Spider Beetle

Photograph courtesy of Whitney Cranshaw

Apionidae

Sphaeralcea weevils
These Apionid weevils were found attacking seed production fields of scarlet globemallow at Hotchkiss, CO in May 2007. This page contains photographs of all life stages and the most up to date information we have on the insect.

Sphaeralcea Weevils
Sphaeralcea weevils

Photos by Melissa Franklin

Cantharidae

Chauliognathus basalis LeConte

Soldier Beetle
Colorado Insects of Interest Fact Sheet (pdf)
Soldier Beetle

Photo by Whitney Cranshaw

Carabidae

Cicindela punctulata punctulata Olivier

Puncture Tiger Beetle
(Sidewalk Tiger Beetle)
Colorado Insects of Interest Fact Sheet (pdf)
Sidewalk Tiger Beetle

Photograph courtesy of Whitney Cranshaw

Cerambycidae

Arhopalus asperatus (LeConte)

Longhorn Beetle
Colorado Insects of Interest Fact Sheet (pdf)
Long Horned Beetle

Photograph courtesy of Whitney Cranshaw

Cerambycidae

Callidium antennatum hesperum (Casey)

Blackhorned Pine Borer
Colorado Insects of Interest Fact Sheet (pdf)
Blackhorned Pine Borer

Blackhorned Pine Borer

Cerambycidae

Megacyllene robiniae (Forster)

Locust Borer
Colorado Insects of Interest Fact Sheet (pdf)
Locust Borer

Photograph courtesy of Whitney Cranshaw

Cerambycidae

Monochamus sp.

Pine Sawyer
Colorado Insects of Interest Fact Sheet (pdf)
Pine Sawyer

Photograph courtesy of Whitney Cranshaw

Cerambycidae

Parandra brunnea (Saussure)

Pole Borer
Colorado Insects of Interest Fact Sheet (pdf)
Pole Borer Beetle

Photograph courtsey of Whitney Cranshaw

Cerambycidae

Prionus spp.

Prionus Longhorn Beetle
Colorado Insects of Interest Fact Sheet (pdf)
Cerambycidae

Tetraopes sp.

Milkweed Longhorns
Colorado Insects of Interest Fact Sheet (pdf)
Milkweed Beetle

Photograph courtesy of Whitney Cranshaw

Chrysomelidae

Altica foliaceae LeConte

Apple Flea Beetle
Colorado Insects of Interest Fact Sheet (pdf)
Apple Flea Beetles

Apple Flea Beetles

Chrysomelidae

Blepharida rhois (Forster)

Sumac Flea Beetle
Colorado Insects of Interest Fact Sheet (pdf)
Sumac Flea Beetle

Photo by Whitney Cranshaw

Chrysomelidae

Charidotella sexpunctata bicolor (F.)

Golden Tortoise Beetle
Colorado Insects of Interest Fact Sheet (pdf)
Golden Tortoise Beetle

Photo by Clemson University - USDA Cooperative Extension Slide Series

Chrysomelidae

Paranapiacaba tricincta (Say)

Checkered Melon Beetle
Colorado Insects of Interest Fact Sheet (pdf)
Checkered Melon Beetle

Photograph courtesy of Whitney Cranshaw

Chrysomelidae

Trirhabda nitidicollis LeConte

Rubber Rabbitbrush Beetle
Colorado Insects of Interest Fact Sheet (pdf)
Rubber Rabbitbrush Beetle

Photograph courtesy of Whitney Cranshaw

Chrysomeloidea

Ergates spiculatus neomexicanus Casey

Ponderous Borer
Colorado Insects of Interest Fact Sheet (pdf)
Ponderous Borer Beetle

Photograph courtsey of Whitney Cranshaw

Cleridae

Clerid Beetles
(Checkered Beetles)
Colorado Insects of Interest Fact Sheet (pdf)
Checkered Beetle.

Photograph courtesy of Whitney Cranshaw.

Curculionidae

Anthonomus consors Dietz

Cherry Curculio
Colorado Insects of Interest Fact Sheet (pdf)
Cherry Curculio

Photograph courtesy of Whitney Cranshaw.

Curculionoidea

Orchestes alni (Linnaeus)

European Elm Flea Weevil
Colorado Insects of Interest Fact Sheet (pdf)
European Elm Flea Weevil

Photo by Whitney Cranshaw.

Curculionoidea

Rhopalapion longirostre (Olivier)

Hollyhock Weevil
Colorado Insect of Interest Fact Sheet (pdf)
Hollyhock Weevils

Photograph courtesy of Whitney Cranshaw

Dermestidae

Dermestid Beetles
(Hide and Carpet Beetles)
Colorado Insects of Interest Fact Sheet (pdf)
Dermestid beetle

Photo by Whitney Cranshaw.

Erotylidae

Gibbifer californicus (Lacordaire)

Pleasing Fungus Beetle
Colorado Insects of Interest Fact Sheet (pdf)
Pleasing Fungus Beetle

Photograph courtesy of Whitney Cranshaw

Hydrophilidae

Hydrophilus triangularis Say

Giant Water Scavenger Beetle
Colorado Insects of Interest Fact Sheet (pdf)
Giant Water Beetle

Photograph courtesy of Whitney Cranshaw

Lampyridae

Fireflies
(Lightning Bugs)
Colorado Insects of Interest Fact Sheet (pdf)
Firefly

Photograph courtesy of Whitney Cranshaw.

Lucanidae

Lucanus (Pseudolucanus) mazama (LeConte)

Southwestern Stag Beetle
Colorado Insects of Interest Fact Sheet (pdf)
Stag Beetle

Photo by Whitney Cranshaw

Scarabaeidae

Aphodius (Aphodiinae)

Prairie Dog Dung Beetles
Dung beetle feed partly or exclusively on the excrement of herbivores or omnivores. The dung is used as a food source or a brooding chamber. These beetles were found near Grand Junction, CO in a prairie dog town and are specific to prairie dog poo. They are shy and do not like to be disturbed.

Watch the video of a dung beetle on prairie dog feces
Prairie Dog Dung Beetle

Photo by Melissa Franklin

Scarabaeidae

Euphoria inda (L.)

Bumble Flower Beetles
Colorado Insects of Interest Fact Sheet (pdf)
Bumble Flower Beetle

Photo by Whitney Cranshaw.

Scarabaeidae

Polyphylla decemlineata (Say)

Tenlined June Beetle
Colorado Insects of Interest Fact Sheet (pdf)
Tenlined June Beetles

Photo by Whitney Cranshaw

Silphidae

Nicrophorus spp.

Burying Beetle
Colorado Insects of Interest Fact Sheet (pdf)Burying beetle. Photograph courtesy of Joseph Berger.[/caption]
Tenebrionoidea

Epicauta sp.

Blister Beetles
Colorado Insects of Interest Fact Sheet (pdf)
Blister Beetle

Blister Beetle



Blister Beetle

Blister Beetle

Folsom Era WeevilsThese weevil abdomens were found in a Folsom era archaeological excavation near Gunnison, CO in the fall of 2006. Several hundred of them were found in a rock wall that was buried about 18" below the soil surface. They are in excellent condition considering the archaeological evidence suggests they may be 10,000 years old! They have been identified as Dyslobus (near) wasatchensis, a root weevil that is possibly an undescribed species.
Folsom Era Weevils

Photo by Bob Hammon