Minnesota Beetles

 
Order Coleoptera
 

Coleoptera (beetles) is the order of insects that is characterized by having a biting mouth and two pairs of wings, the outer pair being hardened and meeting in a straight line down the back.

Coleoptera is the largest order in the animal kingdom. There are about 400,000 described species worldwide, about 24,000 species in 131 families in North America north of Mexico. The total number of species, described and undescribed, is probably close to 1,000,000. It is likely that Coleoptera will be split into two or more orders in the future.

Japanese beetle

 

 

           
Recent Additions
     
Cocklebur weevil
     

Cocklebur weevil (Rhodobaenus quinquepunctatus) is a medium-sized snout beetle. It is widespread in the eastern half of the United States. Adults eat the stalks and leaves of cocklebur, ragweed, thistle, ironweed, Joe Pye weed, sunflower, marsh elder, and rosinweed. Larvae bore into the stems and roots of the same species. It is easily controlled and does not occur in numbers high enough to become an agricultural pest.

Snout beetles are identified by their very long snout. Cocklebur weevil is identified by the reddish-orange body; the oval-shaped black spot in the middle of the thorax; and ten black spots on the wing covers that usually merge to some extent with neighboring spots, especially toward the rear.

  cocklebur weevil
  Photo by Alfredo Colon
   
   
   
     
Rhubarb curculio
     

Rhubarb curculio (Lixus concavus) is a large, easily identified, true weevil. It is common from New Hampshire, south to North Carolina, and west to Utah. It is uncommon in the upper Midwest, including Minnesota. At up to in length and 3 16 in width, it is one of the largest snout beetles in the United States.

Rhubarb curculio adults are active from mid-May to September. They are found on stalks and leaves of thistles, sunflowers, docks, and rhubarb. They are one of only two weevil species that attack rhubarb. They can be a pest to crops of these plants but they are easily controlled.

Snout beetles are easily identified by their long, flattened or cylindrical snout that is at least as long as the pronotum. Rhubarb curculio is easily identified by the bright yellowish bloom on the head, pronotum, and wing covers.

  rhubarb curculio
  Photo by Alfredo Colon
   
   
   
     
Colorado potato beetle
     

Colorado potato beetle (Leptinotarsa decemlineata) is relatively small for a beetle but relatively large for a leaf beetle. Adults are ¼ to 7 16 long and about wide. The body is oval when viewed from above and dome-shaped when viewed from the side. The wing covers are pale yellow with five black lines on each side. The are no similar species in Minnesota.

Prior to European settlement, the Colorado potato beetle was found only in Colorado and neighboring states. The potato was introduced into North America in the 1600s and began to be widely grown in the early 1700s. By 1840 the potato reached the insects home range. By 1859 the insect had switched to the potato as its preferred host, and by 1874 it had spread all the way to the east coast. It is now present across North America, Europe, and Asia.

Colorado potato beetle is a serious crop pest to potato growers. The insect rapidly evolves resistance to chemical pesticides. Many insecticides that once successfully controlled the beetle are no longer effective.

  Colorado potato beetle
  Photo by Alfredo Colon
   
   
   
   
   
   
   
     
Six-spotted tiger beetle
     

Six-spotted tiger beetle (Cicindela sexguttata) is a small predaceous, tiger beetle. It is probably the most common species of tiger beetle in eastern North America, possibly the most common on the continent. It is found in the southern two-thirds of Minnesota. Adults and larval burrows are very often seen on paths in the woods. Six-spotted tiger beetle can be thought of as a woodland path species.

The head and body are shiny, iridescent, and usually metallic green, occasionally blue. Flashy tiger beetles (subtribe Cicindelini) are usually identified by the color and pattern of marks on their wing coverings. The common name of this species comes from white spots on the wing covers. There are usually six small spots, often eight, rarely ten, and occasionally none.

  six-spotted tiger beetle
  Photo by Dan W. Andree
   
     
Eyed click beetle
     

At 1¾ long this may be the largest click beetle in our area. With its boldly-outlined eye spots it is certainly the most distinctive. The body is long, thin, and black, with mottled patterns of minute, whitish scales. The thorax has a pair of large black spots boldly outlined with white. The spots look like eyes and give this beetle its common name.

On the underside, an elongated lobe on one plate fits into a groove in another plate, allowing the insect to produce an audible click. This feature gives the insect family the common name “click beetles”. If put on its back, the beetle uses this click mechanism to catapult itself up to six inches in the air, righting itself and potentially escaping a predator.

Click beetle larvae are called wireworms. Most wireworms eat plant roots, and can be serious agricultural pests. Eyed click beetle wireworms are carnivorous. The feed on the larvae of other insects, especially wood-boring beetles. This makes them a beneficial insect.

  eyed click beetle
  Photo by Dan W. Andree
   
   
   
   
     
Other Recent Additions
     

tortoise beetles (Tribe Cassidini)

hermit flower beetle (Osmoderma eremicola)

ursine spurleg lady beetle (Brachiacantha ursina)

tumbling flower beetle (Mordellina pustulata)

ant-like longhorn beetle (Cyrtophorus verrucosus)

leaf beetle (Ophraella conferta)

  ursine spurleg lady beetle
  Photo by Alfredo Colon

 

 

 

 

 

 

 

           
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American carrion beetle (Necrophila americana)

 

American carrion beetle

ant-like longhorn beetle

banded longhorn beetle

bean leaf beetle

blister beetle (Epicauta sp.)

blister beetle (Nemognatha sp.)

blue-margined ground beetle

brown blister beetle

clavate tortoise beetle

clay-colored leaf beetle

click beetle (Family Elateridae)

cocklebur weevil

Colorado potato beetle

convergent lady beetle

dogbane beetle

dogwood agrilus

dogwood twig borer

downy leatherwing

dung beetle (Scarabaeinae)

eastern rose curculio

end band net-winged beetle

eye-spotted lady beetle

eyed click beetle

fifteen-spotted lady beetle

flea beetle (Disonycha uniguttata)

flower longhorn beetle (Analeptura lineola)

flower longhorn beetle (Brachysomida bivittata)

flower longhorn beetle (Charisalia americana)

flower longhorn beetle (Gaurotes cyanipennis)

flower longhorn beetle (Grammoptera)

goldenrod soldier beetle

hermit flower beetle

hispine leaf beetle (Microrhopala xerene)

hispine leaf beetle (Sumitrosis inaequalis)

Japanese beetle

large rove beetle (Belonuchus rufipennis)

leaf beetle (Ophraella conferta)

maculated dung beetle

margined carrion beetle

metallic flea beetle (Altica sp.)

multicolored Asian lady beetle

northern corn rootworm beetle

oil beetle

polished lady beetle

Poplar’s snout weevil

red milkweed beetle

red-blue checkered beetle

rhubarb curculio

seven-spotted lady beetle

soldier beetle (Podabrus rugosulus)

soldier beetle (Trypherus frisoni)

splendid earth-boring beetle

spotted lady beetle

striped cucumber beetle

sumac flea beetle

swamp milkweed leaf beetle

thistle tortoise beetle

tortoise beetle (Tribe Cassidini)

tumbling flower beetle (Mordellina pustulata)

two-lined leatherwing

ursine spurleg lady beetle

water scavenger beetle (Tropisternus sp.)

wedge-shaped beetle (Macrosiagon limbata)

wedge-shaped beetle (Ripiphorus sp.)

weevil (Lixus terminalis)

whirligig beetle (Gyrininae)

whitespotted sawyer

winter firefly

     

American rose chafer (Macrodactylus subspinosus)

 
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ant-like longhorn beetle (Cyrtophorus verrucosus)

 
     

argus tortoise beetle (Chelymorpha cassidea)

 
     

Asian longhorned beetle (Anoplophora glabripennis)

 
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banded longhorn beetle (Typocerus velutinus)

 
     

banded net-wing beetle (Calopteron reticulatum)

 
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bean leaf beetle (Cerotoma trifurcata)

 
     

big sand tiger beetle (Cicindela formosa)

 
     

bigeminy lady beetle (Hyperaspis bigeminata)

 
     

black blister beetle (Epicauta pennsylvanica)

 
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black carpet beetle (Attagenus unicolor)

 
     

black firefly (Lucidota atra)

 
     

blacklegged tortoise beetle (Jonthonota nigripes)

 
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blister beetle (Epicauta spp.)

 
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blister beetle (Nemognatha spp.)

 
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blue-margined ground beetle (Pasimachus elongatus)

 
     

boreal long-lipped tiger beetle (Cicindela longilabris)

 
     

branch pruner beetle (Psyrassa unicolor)

 
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bronzed tiger beetle (Cicindela repanda)

 
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brown blister beetle (Zonitis vittigera)

 
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clavate tortoise beetle (Plagiometriona clavata)

 
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clay-colored leaf beetle (Anomoea laticlavia)

 
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click beetle (Family Elateridae)

 
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cocklebur weevil (Rhodobaenus quinquepunctatus)

 
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Colorado potato beetle (Leptinotarsa decemlineata)

 
     

common claybank tiger beetle (Cicindela limbalis)

 
     

common eastern firefly (Photinus pyralis)

 
     

common willow calligrapha (Calligrapha multipunctata)

 
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convergent lady beetle (Hippodamia convergens)

 
     

crimson saltflat tiger beetle (Cicindela fulgida fulgida)

 
     

crimson saltflat tiger beetle (Cicindela fulgida westbournei)

 
     

curved lady beetle (Hyperaspis inflexa)

 
     

disk-marked lady beetle (Hyperaspis disconotata)

 
     

dock curculio (Lixus mucidus)

 
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dogbane beetle (Chrysochus auratus)

 
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dogwood agrilus (Agrilus cephalicus)

 
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dogwood twig borer (Oberea tripunctata)

 
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downy leatherwing (Podabrus tomentosus)

 
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dung beetle (Scarabaeinae)

 
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eastern rose curculio (Merhynchites bicolor)

 
     

eggplant tortoise beetle (Gratiana pallidula)

 
     

emerald ash borer (Agrilus planipennis)

 
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end band net-winged beetle (Calopteron terminale)

 
     

esteemed lady beetle (Hyperaspis proba)

 
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eyed click beetle (Alaus oculatus)

 
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eye-spotted lady beetle (Anatis mali)

 
     

false Japanese beetle (Strigoderma arbicola)

 
     

festive tiger beetle (Cicindela scutellaris)

 
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fifteen-spotted lady beetle (Anatis labiculata)

 
     

firefly (Photuris spp.)

 
     

flea beetle (Disonycha crenicollis)

 
     

flea beetle (Disonycha latifrons)

 
     

flea beetle (Disonycha pensylvanica)

 
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flea beetle (Disonycha uniguttata)

 
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flea beetle (Tribe Alticini)

 
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flower longhorn beetle (Analeptura lineola)

 
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flower longhorn beetle (Brachysomida bivittata)

 
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flower longhorn beetle (Charisalia americana)

 
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flower longhorn beetle (Gaurotes cyanipennis)

 
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flower longhorn beetle (Grammoptera spp.)

 
     

flower longhorn beetle (Strangalia luteicornis)

 
     

flower longhorn beetle (Trigonarthris proxima)

 
     

flower longhorn beetle (Typocerus deceptus)

 
     

golden tortoise beetle (Charidotella sexpunctata bicolor)

 
     

goldenrod leaf beetle (Trirhabda canadensis)

 
     

goldenrod leaf miner (Microrhopala vittata)

 
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goldenrod soldier beetle (Chauliognathus pennsylvanicus)

 
     

grape flea beetle (Altica chalybea)

 
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green immigrant leaf weevil (Polydrusus formosus)

 
     

green june beetle (Cotinis nitida)

 
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hairy flower scarab (Trichiotinus assimilis)

 
     

hairy flower scarab (Trichiotinus piger)

 
     

hairy-necked tiger beetle (Cicindela hirticollis rhodensis)

 
     

hardy soldier beetle (Silis difficilis)

 
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hermit flower beetle (Osmoderma eremicola)

 
     

hickory bark beetle (Scolytus quadrispinosus)

 
     

hispine leaf beetle (Microrhopala cyanea)

 
     

hispine leaf beetle (Microrhopala excavata)

 
     

hispine leaf beetle (Microrhopala rubrolineata)

 
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hispine leaf beetle (Microrhopala xerene)

 
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hispine leaf beetle (Sumitrosis inaequalis)

 
     

hispine leaf beetle (Sumitrosis rosea)

 
     

horsemint tortoise beetle (Physonota unipunctata)

 
     

ironweed curculio (Rhodobaenus tredecimpunctatus)

 
     

ivory-marked borer beetle (Eburia quadrigeminata)

 
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Japanese beetle (Popillia japonica)

 
     

large rove beetle (Belonuchus formosus)

 
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large rove beetle (Belonuchus rufipennis)

 
     

Laurentian tiger beetle (Cicindela denikei)

 
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leaf beetle (Ophraella conferta)

 
     

little white tiger beetle (Cicindela lepida)

 
     

locust borer (Megacyllene robiniae)

 
     

lugubrius lady beetle (Hyperaspis lugubris)

 
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maculated dung beetle (Aphodius distinctus)

 
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margined carrion beetle (Oiceoptoma noveboracense)

 
     

margined leatherwing (Chauliognathus marginatus)

 
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May beetle (Phyllophaga spp.)

 
     

metallic flea beetle (Altica aeneola)

 
     

metallic flea beetle (Altica bimarginata)

 
     

metallic flea beetle (Altica ignita)

 
     

metallic flea beetle (Altica knabii)

 
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metallic flea beetle (Altica spp.)

 
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metallic wood-boring beetle (Agrilus obsoletoguttatus)

 
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Minnesota longhorn beetle (Trigonarthris minnesotana)

 
     

mottled tortoise beetle (Deloyala guttata)

 
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multicolored Asian lady beetle (Harmonia axyridis)

 
     

nine-spotted lady beetle (Coccinella novemnotata)

 
     

northern barrens tiger beetle (Cicindela patruela patruela)

 
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northern corn rootworm beetle (Diabrotica barberi)

 
     

oak twig pruner (Anelaphus parallelus)

 
     

oblique-lined tiger beetle (Cicindela tranquebarica)

 
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oil beetle (Meloe impressus)

 
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pedunculate ground beetle (Scarites quadriceps)

 
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Pennsylvania firefly (Photuris pensylvanica)

 
     

Pennsylvania dingy ground beetle (Harpalus pensylvanicus)

 
     

pleasing fungus beetle (Triplax thoracica)

 
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polished lady beetle (Cycloneda munda)

 
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Poplar’s snout weevil (Lepyrus palustris)

 
     

punctured tiger beetle (Cicindela punctulata)

 
     

purple tiger beetle (Cicindela purpurea)

 
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red milkweed beetle (Tetraopes tetrophthalmus)

 
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red-blue checkered beetle (Trichodes nutalli)

 
     

red-femured milkweed borer (Tetraopes femoratus)

 
     

red-headed ash borer (Neoclytus acuminatus)

 
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rhubarb curculio (Lixus concavus)

 
     

ridged carrion beetle (Oiceoptoma inaequale)

 
     

rough hermit beetle (Osmoderma scabra)

 
     

round-necked longhorn beetle (Clytus ruricola)

 
     

rustic borer (Xylotrechus colonus)

 
     

sandy stream tiger beetle (Cicindela macra macra)

 
     

sandy tiger beetle (Cicindela limbata nympha)

 
     

scooped scarab (Onthophagus hecate)

 
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seven-spotted lady beetle (Coccinella septempunctata)

 
     

sigil lady beetle (Hyperaspis binotata)

 
     

sigil lady beetle (Hyperaspis fimbriolata)

 
     

sigil lady beetle (Hyperaspis octavia)

 
     

sigil lady beetle (Hyperaspis signata)

 
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six-spotted tiger beetle (Cicindela sexguttata)

 
     

soldier beetle (Atalantycha dentigera)

 
     

soldier beetle (Atalantycha neglecta)

 
     

soldier beetle (Cantharis bilobatus)

 
     

soldier beetle (Cantharis campestris)

 
     

soldier beetle (Cantharis carolina)

 
     

soldier beetle (Cantharis excavatus)

 
     

soldier beetle (Cantharis flavipes)

 
     

soldier beetle (Cantharis fraxini)

 
     

soldier beetle (Cantharis impressus)

 
     

soldier beetle (Cantharis luteicollis)

 
     

soldier beetle (Cantharis nigriceps)

 
     

soldier beetle (Cantharis rectus)

 
     

soldier beetle (Cantharis rotundicollis)

 
     

soldier beetle (Cantharis septentrionalis)

 
     

soldier beetle (Cantharis tantillus)

 
     

soldier beetle (Cantharis vilis)

 
     

soldier beetle (Cantharis walshi)

 
     

soldier beetle (Ditemnus latilobus)

 
     

soldier beetle (Malthodes concavus)

 
     

soldier beetle (Podabrus diadema)

 
     

soldier beetle (Podabrus flavicollis)

 
     

soldier beetle (Podabrus frater)

 
     

soldier beetle (Podabrus laevicollis)

 
     

soldier beetle (Podabrus nothoides)

 
     

soldier beetle (Podabrus piniphalus)

 
     

soldier beetle (Podabrus puberulus)

 
     

soldier beetle (Podabrus puncticollis)

 
     

soldier beetle (Podabrus punctulatus)

 
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soldier beetle (Podabrus rugosulus)

 
     

soldier beetle (Podabrus tricostatus)

 
     

soldier beetle (Polemius canadensis)

 
     

soldier beetle (Polemius laticornis)

 
     

soldier beetle (Polemius limbatus)

 
     

soldier beetle (Silis percomis)

 
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soldier beetle (Trypherus frisoni)

 
     

spinach flea beetle (Disonycha xanthomelas)

 
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splendid earth-boring beetle (Geotrupes splendidus)

 
     

splendid tiger beetle (Cicindela splendida cyanocephalata)

 
     

spotted cucumber beetle (Diabrotica undecimpunctata)

 
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spotted lady beetle (Coleomegilla maculata)

 
     

spurleg lady beetle (Brachyacantha dentipes)

 
     

spurleg lady beetle (Brachyacantha felina)

 
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striped cucumber beetle (Acalymma vittatum)

 
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sumac flea beetle (Blepharida rhois)

 
     

sumac stem borer (Oberea ocellata)

 
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swamp milkweed leaf beetle (Labidomera clivicollis)

 
     

tanbark borer (Phymatodes testaceus)

 
     

thirteen-spotted lady beetle (Hippodamia tredecimpunctata)

 
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thistle tortoise beetle (Cassida rubiginosa)

 
     

three-lined potato beetle (Lema daturaphila)

 
     

three-spotted flea beetle (Disonycha triangularis)

 
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toothed click beetle (Denticollis denticornis)

 
     

tortoise beetle (Agroiconota bivittata)

 
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tortoise beetles (Tribe Cassidini)

 
     

tumblebug (Canthon laevis)

 
     

tumblebug (Canthon nigricornis)

 
     

tumblebug (Canthon viridis)

 
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tumbling flower beetle (Mordellina pustulata)

 
     

twelve-spotted tiger beetle (Cicindela duodecimguttata)

 
     

twig pruner (Anelaphus villosus)

 
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two-lined leatherwing (Atalantycha bilineata)

 
     

undulate lady beetle (Hyperaspis undulata)

 
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ursine spurleg lady beetle (Brachiacantha ursina)

 
     

vivid metallic ground beetle (Chlaenius sericeus)

 
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water scavenger beetle (Tropisternus spp.)

 
     

wedge-shaped beetle (Macrosiagon dimidiatum)

 
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wedge-shaped beetle (Macrosiagon limbata)

 
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wedge-shaped beetle (Ripiphorus spp.)

 
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weevil (Lixus terminalis)

 
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whirligig beetle (Subfamily Gyrininae)

 
     

white-fronted lady beetle (Brachyacantha albifrons)

 
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whitespotted sawyer (Monochamus scutellatus scutellatus)

 
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winter firefly (Ellychnia corrusca)

 
         

 

 

No Species Page Yet?

If you do not see a linked page for an insect in the list at left, or the insect does not appear in the list, you can still upload a photo or video as an email attachment or report a sighting for that insect. Click on one of the buttons below and type in the common name and/or scientific name of the insect in your photo, video, or sighting. A new page will be created for that insect featuring your contribution.

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Capitalization of Common Names

Insect scientific names are governed by the International Commission on Zoological Nomenclature (ICZN). Vernacular (common) names are not. In an attempt to “assure the uniformity of (common) names of common insects” the Entomological Society of America (ESA) published Common Names of Insects and Related Organisms. ESA has no rule or guideline that addresses capitalization of common names. However, the database of common names published by ESA does not capitalize common names. National Center for Biotechnology Information (NCBI) also uses uncapitalized common names. Most other sources, including ITIS, BAMONA, Odonata Central, and the Peterson Field Guides, capitalize common insect names. MinnesotaSeasons.com will adhere to the convention followed by ESA and NCBI.

 


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