Utah Plant Pest Diagnostic Lab

Arthropod Samples in March 2010

Carpet Beetle (Dermestidae)

Scientific Name: Anthrenus sp.

carpet beetle

carpet beetle

Photo(s): Black carpet beetle adult and larvae, Clemson University, USDA Cooperative Extension Slide Series, Bugwood.org; Carpet beetle larva and shed skin, Jared Kunz, Utah State University.

Type: Stored food, structural.

Situation: In Home

County: Davis

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


Delusions of Infestation

Scientific Name: N/A

delusitory parasitosis

delusitory parasitosis

delusitory parasitosis

Photo(s): Typical sample submitted by DI sufferer, Ryan Davis, Utah State University; Samuel Abbott, Utah State University.

Type: Medical. Perceived pest bites and infection when none are present.

Situation: In Home

County: SLC

Fact Sheets: Utah State University Extension


Pinyon Needle Scale (Margarodidae)

Scientific Name: Matsucoccus acalyptus

pinyon needle scale

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

Type: Ornamental Pest

Situation: Found on Pinyon Pine

County: Grand

Fact Sheets: Utah State University, Lyme Disease Tick Survey; Colorado State University Extension


Hacklemesh Weaver (Amaurobiidae)

Scientific Name: Callobius sp.

hacklemesh weaver

Photo(s): Gary Alpert, Harvard University, Bugwood.org;

Type: Not medically significant (poisonous)

Situation: Found in home

County: Cache

Fact Sheets:Penn State University


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


Domestic House Spider (Agelenidae)

Scientific Name: Tegenaria domestica

domestic house spider

Photo(s): Joseph Burger, Bugwood.org

Type: Not medically significant (poisonous)

Situation: Found in home

County: Cache

Fact Sheets:Penn 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

*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.