Guardian Nature School Team Contact Blog Project Noah Facebook Project Noah Twitter

A global community of nature enthusiasts
photographing and learning about wildlife

Join Project Noah!
nature school apple icon

Project Noah Nature School visit nature school

Velvet mite

Trombidium holosericeum


This species is one of the largest mites in northern temperate zones, with a body length of about 4 mm. The soft, brightly red body is covered with fine hairs, giving it a velvety appearance. The small eyes are located on stalks. They have scissor-like chelicerae, their pedipalps are used as touch organs. Its bright red color results from carotenoids, warning predators about the toxicity of the mite (aposematism). Almost nothing is known about the toxic substances used, but they are probably contained within the integument. The specific epithet is derived from Ancient Greek holo "whole" and seric- "silken".


While adults live freely and are often found wandering about, searching for small animals and insect eggs for food, the larvae try to find a host to attach themselves to, often an insect like a grasshopper or diptere, but also arachnids like harvestmen or spiders. At this stage they are seen as red globules on their hosts, sucking body liquid without severely harming the host. These larvae then develop into free-living nymphs that resemble adults. T. sericeum is a palearctic species. Spotted in river Homem félinhos beach,a kind of acarus

1 Species ID Suggestions

emanuelgoyco 10 years ago
Velvet mites
Trombidium holosericeum

Sign in to suggest organism ID


emanuelgoyco 10 years ago


thanks Emanuelgoyco for the id

Thanks gerardo

Gerardo Aizpuru
Gerardo Aizpuru 10 years ago

Cool spotting :)

Braga, Portugal

Spotted on Nov 13, 2012
Submitted on Jan 6, 2013

Related Spottings

Velvet mite Velvet mite Trombidium sp. 絨蟎 Velvet mite

Nearby Spottings

Cliff Brake Bush lily Black Redstart(Rabiruivo Preto) Magnolia
Noah Guardians
Noah Sponsors
join Project Noah Team

Join the Project Noah Team