Utah Plant Pest Diagnostic Lab

Arthropod Samples in April 2012

Fungus Gnat (Sciaridae)

Scientific Name: N/A

fungus gnat

fungus gnat

Photo(s): David Cappaert, Michigan State University, Bugwood.org

Type: Feed on fungi and decomposing organic matter

Situation: Found in greenhouse

County: Summit

Fact Sheets: Utah State University Extension; Utah State University Entomology; Colorado State University Extension


Aphid Wasp (Sphecidae)

Scientific Name: Pemphredon sp.

aphid wasp

aphid wasp

aphid wasp

Photo(s): David Cappaert, Michigan State University, Bugwood.org

Type: Beneficial insect

Situation: Found in Blackberries

County: Carbon

Fact Sheets: Colorado State University


Lyctid Powderpost Beetle (Bostrichidae)

Scientific Name: Lyctus sp.

powderpost beetle

powderpost beetle

powderpost beetle

powderpost beetle

powderpost beetle

powderpost beetle

powderpost beetle

Photo(s): Ryan Davis USU

Type: Wood Borer

Situation: On dining table and cabinets

County: Cache

Fact Sheets: University of Kentucky; Penn State University; University of California IPM


Black Carpet Beetle (Dermestidae)

Scientific Name: Attagenus unicolor

black carpet beetle

Photo(s): Black carpet beetle, adult (top) and larvae (bot) Clemson University USDA Cooperative Extension Slide Series.

Type: Household pest

Situation: Found in home

County: Davis

Fact Sheets: Colorado State University; University of California IPM


Spinach Leaf Miner

Scientific Name: Pegomya hyoscyami

leaf miner

leaf miner

leaf miner

Photo(s): Gyorgy Csoka, Hungary Forest Research Institute, Bugwood.org, (Far Right) Plant Protection Service Archive, Plant Protection Service, Bugwood.org

Type: Fly

Situation: On Spinach

County: Cache

Fact Sheets: Utah State University; Colorado State University


Pavement Ant (Formicidae)

Scientific Name: Tetramorium caespitum

pavement ant

Photo(s): Samuel Abbott, Utah State University

Type: Nuisance

Situation: Found in home

County: Cache

Fact Sheets:Penn State University; University of California IPM; Image at Antweb.org


Seed Bug (Lygaeidae)

Scientific Name: Xyonysius sp.

seed bug

Photo(s): Joel Smith USU

Type:plant pest- feeds on seeds, dry fruit, and other plant juices

Situation: Found on Field (pepper cucurbits)

County: Grand

Fact Sheets:University of Kentucky


Huntsman Spider (Sparassidae)

Scientific Name: Heteropoda sp.

huntsman spider

Photo(s): Edward L. Manigault, Clemson University Donated Collection, Bugwood.org

Type: Beneficial/ Biting

Situation: In home

County: Sevier

Fact Sheets: Utah State University Extension


Spruce Spider Mite (Tetranychidae)

Scientific Name: Oligonychus ununguis

spider mite

spider mite

Photo(s): Petr Kapitola, State Phytosanitary Institute, Bugwood.org; USDA Forest Service, Northeastern Archive, Bugwood.org

Type: Plant and tree pest

Situation: On blue spruce

County: Salt Lake

Fact Sheets: Penn State University

*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.