Arthropod (insects, spiders, mites, etc.) samples diagnosed by the Utah Plant Pest Diagnostic Lab in October 2010
- Rove Beetle
- Cellar Spider
- Spruce Spider Mite
- Aphid
- Yellowjacket
- Midge Fly
- Cooley Spruce Gall Adelgid
- Nocturnal Velvet Ant
- Wolf Spider
- Golden Huntsman Spider
- Elm Leaf Beetle
- Hobo Spider
- Bold Jumping Spider
*Click on thumbnails for larger images.

Photo(s): Ryan Davis, Utah State University; Gerald J. Lenhard, Louisiana State University, Bugwood.org; Joseph Berger, Bugwood.org.
Photo(s): Gary Alpert, Harvard University, Bugwood.org; Josepch Berger, Bugwood.org
Spruce Spider Mite (Tetranychidae)
Photo(s): Petr Kapitola, State Phytosanitary Institute, Bugwood.org; USDA Forest Service, Northeastern Archive, Bugwood.org
Scientific Name: Rhopalosiphum sp. ; Hamamelistes sp.

Photo(s): David Cappaert, Michigan State University, Bugwood.org; Ryan Davis, Utah State University; Whitney Cranshaw, Colorado State University, Bugwood.org
Type: Plant fluid sucking pest
Situation: Mass flight
County: Davis/Weber
Fact Sheets:
Utah State University Extension (Apple); Utah State University Extension (Alfalfa); Colorado State University Extension;
Scientific Name: Vespula pensylvanica

Photo(s): (2 images) Whitney Cranshaw, Colorado State University, Bugwood.org; Jim Baker, North Carolina State University, Bugwood.org - Yellowjacket (left) and Bald-faced hornet (right)
Type: Beneficial, stinging pest
Situation: People stung at bus stop
County: Sevier
Fact Sheets:
Utah State University Extension; University of California IPM; West Virginia University Extension
Scientific Name: Chironomus plumosus

Photo(s): Joseph Berger, Bugwood.org
Type: Non-biting Midge, nuisance
Situation: Eggs ruining automotive paint after rain
County: Davis
Fact Sheets:
Ohio State University;
Cooley's Spruce Gall Adelgid (Adelgidae)
Scientific Name: Adelgis cooleyi

Photo(s): Utah State University; Whitney Cranshaw, Colorado State University, Bugwood.org
Type: Tree pest
Situation: On Blue Spruce
County: Cache
Fact Sheets:
Utah State University Extension; Colorado State University Extension;
Nocturnal Velvet Ant (Mutillidae)
Scientific Name: Odontophotopsis cassia
Scientific Name: N/A

Photo(s): (4 images) Samuel Abbott, Utah State University; Ryan Davis, Utah State University; Whitney Cranshaw, Colorado State University, Bugwood.org
Utah State University (Hobos); Utah State University (Spiders); University of Kentucky; Images;
Scientific Name: Xanthogaleruca luteola
Photo(s): Clemson University, USDA Cooperative Extension Slide Series, Bugwood.org; (2 images) Whitney Cranshaw, Colorado State University, Bugwood.org; Wiliam M. Ciesla, Forest Health Management International, Bugwood.org
Type: Tree pest
Situation: Thousands in house
County: Washington
Fact Sheets:
Colorado State University Extension; University of California IPM;
Scientific Name: Tegenaria agrestis
Utah State University Extension;
Bold Jumping Spider (Salticidae)
Scientific Name: Phidippus audax
*Links in the table 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.

















