Utah Plant Pest Diagnostic Lab

Arthropod Samples in September 2010

Leaf-footed Bug (Coreidae)

Scientific Name: N/A

leaf-footed bug

leaf-footed bug

leaf-footed bug

Photo(s): Whitney Cranshaw, Colorado State University, Bugwood.org,

Type: Nuisance pest.

Situation: On golf course

County: Wasatch

Fact Sheets:Illinois Natural History Survey; Colorado State University; University of California IPM


American Dagger Moth (Noctuidae)

Scientific Name: Acronicta americana

dagger moth

dagger moth

Photo(s): Joseph Berger, Bugwood.org

Type: Tree pest

Situation: On black walnut

County: Cache

Fact Sheets: University of Alberta


Black Pineleaf Scale (Diaspididae)

Scientific Name: Nuculaspis claifornica

black pinleaf

black pinleaf

Photo(s): Black pineleaf scale, Jared Kunz, Utah State University.

Type: Pine Pest

Situation: On pine tree

County: Salt Lake

Fact Sheets: Utah State University Extension(Utah Pests Newsletter); Oregon Department of Forestry; University of Minnesota


Hobo Spider (Agelenidae)

Scientific Name: Tegenaria agrestis

hobo eggs

hobo spider

Photo(s): Video and photos by Ryan Davis, Utah State University.

Type: Biting/Beneficial

Host: Various insects

County: Cache

Fact Sheets: Utah State University Extension


Masked Hunter (Reduviidae)

Scientific Name: Reduvius personatus

masked hunter

masked hunter

masked hunter

Photo(s): (1) & (2) Joseph Berger, Bugwood.org; (3) Whitney Cranshaw, Colorado State University, Bugwood.org

Type: Predatory Bugs, Biting insects, Beneficial

Host: Found in home

County: Cache

Fact Sheets: Penn State University; Michigan State University


Indian Meal Moth (Pyralidae)

Scientific Name: Plodia interpunctella

indian meal moth

indian meal moth

indian meal moth

Photo(s): Clemson University, USDA Cooperative Extension Slide Series, Bugwood.org;

Type: Stored food products pests

Situation: In home

County: Salt Lake, Cache

Fact Sheets: Utah State University


Black Widow (Theridiidae)

Scientific Name: Latrodectus hesperus

black widow

black widow

black widow

black widow

black widow

Photo(s): Joel Smith, Utah State University (Left 2: Juvenile female, Right 2: Male); (Far Right) Whitney Cranshaw, Colorado State University, Bugwood.org

Type: Biting, medical concern; Benificial

Situation: In home

County: Washington

Fact Sheets: Peter J. Bryant; University of california IPM; Virginia Tech University


Corn Earworm (Noctuidae)

Scientific Name: Helicoverpa zea

corn earworm

corn earworm

Photo(s): Clemson University, USDA Cooperative Extension Slide Series; R.L. Croissant, Bugwood.org

Type: Corn, vegetable pest

Host: On sweet corn

County: Salt Lake

Fact Sheets: Utah State University Extension


Fall Armyworm (Noctuidae)

Scientific Name: Spodoptera frugiperda

fall army worm

fall army worm

fall army worm

Photo(s): Frank Peairs, Colorado State University, Bugwood.org; Charles Bryson, USDA Agricultural Research Service, Bugwood.org; Lyle Buss, University of Florida, Bugwood.org

Type: Corn, vegetable pest

Host: On sweet corn

County: Salt Lake

Fact Sheets: Purdue University; University of Florida


Ground Spider (Gnaphosidae)

Scientific Name: Drassodes sp.

ground spider

ground spider

Photo(s): Joseph Berger, Bugwood.org

Type: beneficial

Host: In home

County: Uintah

Fact Sheets: Utah State University Extension


Two-spotted Spider Mite (Tetranychidae)

Scientific Name: Tetranychis urticae

spider mite

Photo(s): Eugene E. Nelson, Bugwood.org

Type: Plant pest

Situation: Found on eggplant

County: Cache

Fact Sheets: Utah State University


Field Ant (Formicidae)

Scientific Name: Formica sp

field ant

field ant

Photo(s): Joel Smith, Utah State University; April Noble, Antweb.org

Type: Home pest

Situation: In house

County: Cache

Fact Sheets: Utah State University; Colorado State University


Banded Orb Weaver (Araneidae)

Scientific Name: Argiope trifasciata

banded orb weaver

banded orb weaver

banded orb weaver

Photo(s): David Cappaert, Michigan State University, Bugwood.org; Dani Barchana, Bugwood.org; Whitney Cranshaw, Colorado State University, Bugwood.org

Type: Beneficial, not harmful to humans

Situation: In house

County: Cache

Fact Sheets: Utah State University


Cat-Faced Spider (Araneidae)

Scientific Name: Araneus gemmoides

cat faced spider

cat faced spider

Photo(s): Joseph Berger, Bugwood.org; Whitney Cranshaw, Colorado State University, Bugwood.org

Type: Beneficial, not harmful to humans

Situation: In house

County: Davis

Fact Sheets: Utah State University


Vivid Metallic Ground Beetle (Carabidae) (Bembidiini tribe)

Scientific Name: Chlaenius sp.

ground beetle

ground beetle

Photo(s): Merle Shepard, Bugwood.org

Type: Beneficial predatory insect

Situation: On Turf

County: Salt Lake

Fact Sheets: Utah State University Extension; Images


Bumble Flower Beetle (Scarabaeidae)

Scientific Name: Euphoria sp.

bumble beetle

bumble beetle

bumble beetle

Photo(s): Merle Shepard, Bugwood.org

Type: Beneficial predatory insect

Situation: On corn and on peach

County: Cache

Fact Sheets: Utah State University Extension; Images


Tarantula Hawk (Pompilidae)

Scientific Name: N/A

tarantula hawk

tarantula hawk

Photo(s): Whitney Cranshaw, Colorado State University, Bugwood.org

Type: Parasitoid wasp

Situation: On peach on the ground

County: Box Elder

Fact Sheets: USDA Forest Service; Images

*Links on the page are not intended as authoritative sources of management information. Established links allow users to view pictures of pests and find general biology and control information; for Utah-specific control recommendations please contact the Utah Plant Pest Diagnostic Lab @ 435-797-2435. Pictures above are not always the exact species identified, but are representative photos of submitted samples.