Psyllobora borealis

Psyllobora borealis
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Suborder:	Polyphaga
Infraorder:	Cucujiformia
Family:	Coccinellidae
Genus:	Psyllobora
Species:	P. borealis
Binomial name
Psyllobora borealis Casey, 1899
Synonyms
Psyllobora deficiensCasey, 1899

Psyllobora borealis is a species of lady beetle in the family Coccinellidae and the genus Psyllobora. It is found in North America, ^{[1] [2]} where it has been recorded from Montana to New Mexico, west to southern British Columbia and southern California. ^[3]

Description

Adults reach a length of about 2.4 to 3.1 mm in length. ^[4] Its appearance consists of dark splotches on the elytra with lighter splotches on the pronotum.

A distinction from Psyllobora vigintimaculata is that the lateral spot in P. borealis is much smaller and always separate from its median spot. ^[5]

Biology

Its main food source is Powdery Mildew ^[6]

References

1. "Psyllobora borealis Report". Integrated Taxonomic Information System. Retrieved 2019-09-24.
2. "Psyllobora borealis". GBIF. Retrieved 2019-09-24.
3. Gordon, Robert D. (1985). "The Coccinellidae (Coleoptera) of America north of Mexico" (PDF). Journal of the New York Entomological Society. 93 (1). The New York Entomological Society: 1–916. Retrieved August 4, 2025.
4. "Psyllobora borealis". Bugs With Mike. 2025-03-04. Retrieved 2025-03-04.
5. "Psyllobora vigintimaculata (Twenty-spotted Lady Beetle)". 10,000 Things of the Pacific Northwest. 2020-09-25. Retrieved 2025-03-04.
6. "Fungus-Feeding Psyllobora Lady Beetles / Home and Landscape / UC Statewide IPM Program (UC IPM)". ipm.ucanr.edu. Retrieved 2025-03-04.

Further reading

• Lobl, I.; Smetana, A., eds. (2007). Catalogue of Palaearctic Coleoptera, Volume 4: Elateroidea - Derodontoidea - Bostrichoidea - Lymexyloidea - Cleroidea - Cucujoidea. Apollo Books. ISBN   978-8788757675.