---
title: "Mule Fat Blister Mite"
description: "Aceria baccharices — Insectos y arañas. Aceria baccharices, also known as the mulefat leaf-blister mite and formerly known as Eriophyes baccharices, is a species of arachnid native to North America that induces galls on two California willows, Baccharis salicifolia and Baccharis glutinosa."
canonical: https://animalchecklist.com/es/animal/mule-fat-blister-mite
last_updated: 2026-09-20
---

# Mule Fat Blister Mite

> Aceria baccharices — Insectos y arañas. Aceria baccharices, also known as the mulefat leaf-blister mite and formerly known as Eriophyes baccharices, is a species of arachnid native to North America that induces galls on two California willows, Baccharis salicifolia and Baccharis glutinosa.

- Scientific name: *Aceria baccharices*
- Category: `insects` (Insectos y arañas)
- Habitats: unknown
- iNaturalist observations: 1469
- Wikidata: [Q55650482](https://www.wikidata.org/wiki/Q55650482)
- iNaturalist taxon: [349740](https://www.inaturalist.org/taxa/349740)

## Names

- en: Mule Fat Blister Mite

## Countries with the most observations

US (1084), MX (57)

## Summary

Aceria baccharices, also known as the mulefat leaf-blister mite and formerly known as Eriophyes baccharices, is a species of arachnid native to North America that induces galls on two California willows, Baccharis salicifolia and Baccharis glutinosa. This mite was first described to science by Hartford H. Keifer in 1945. According to Keifer, "the typical host is the long-leaf type Baccharis which is common to dry washes in northern California. The other host is similar but confined to the south." These galls, which look like warty protrusions from the surface of the leaf, are nurseries for the next generation of mites…

Text: Wikipedia (en), CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Aceria_baccharices

## Photo

![Mule Fat Blister Mite](https://animalchecklist.com/img/animals/mule-fat-blister-mite/medium.jpg)

Photo: andrew2285 · CC0 · inaturalist — https://www.inaturalist.org/observations/344808703

## Machine access

`GET https://animalchecklist.com/api/v1/animals/mule-fat-blister-mite?lang=es` — see [openapi.json](https://animalchecklist.com/openapi.json).