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Genus Balaustium - sidewalk mites

Tiny red spider - Balaustium red mite - Balaustium Unknown Mite - Balaustium Mite 2 - Balaustium Balaustium? - Balaustium Trombidioidea? - Balaustium mite - Balaustium Red mite - Erythaeidae? - Balaustium
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Subclass Acari (Mites and Ticks)
Superorder Acariformes
Order Trombidiformes
Suborder Prostigmata (Prostigs)
Infraorder Anystina
No Taxon (Parasitengona - velvet mites (including chiggers) & water mites)
No Taxon (Erythraeina - long-legged velvet mites)
Superfamily Erythraeoidea (long-legged velvet mites)
Family Erythraeidae
Subfamily Balaustiinae
Genus Balaustium (sidewalk mites)
Other Common Names
concrete mites, pollen mites, red mites
All active stages (larva, deutonymph, adult) are predatory on other soft-bodied arthropods including insect eggs. However, several species have been shown to subsist exclusively on pollen. In fact, the most noticed species (synanthropic species found on concrete, as well as those that can be found on flowers) likely persist exclusively on pollen in nature.
Life Cycle
Most Parasitengona (water mites, chiggers, velvet mites, and relatives) are ectoparasites as larvae and then active stages (deutonymphs and adults) are predators. Balaustium have lost the parasitic association as larvae, and instead all life stages are predators. Exceptions to this rule are those Balaustium that can persist on pollen either facultatively or obligatorily.