Trombidiformes47 species

Family Gall mites (Eriophyidae)

Eriophyidae is a family in the order Trombidiformes. Browse 47 named species recorded in this family, or open an individual profile for its available identification and natural-history information.

Species in Eriophyidae (47)

Almond and plum bud gall mite

Acalitus phloeocoptes

Identification: "On almond the mite produces permanent irregular galls of various sizes around buds. It also deforms fruit spurs. The entire physiology of the attacked almond tree becomes upset: fruit buds fail to form, trees lose vigor, and damage a

Aceria baccharices

Causes irregular, wartlike, rough-looking galls on the upper surface of leaves of seep willow ( Baccharis glutinosa ) and mule-fat ( B. viminea ).

Aceria caulis

Causes a pubescent gall on black walnut petioles, passing from greenish through pink and crimson to reddish brown.

Aceria lantanae

Galls on yellow sage ( Lantana camara ) are described as "deformed flowers, mass of small leaflike outgrowths."

Aceria mackiei

Identification: Creates 2-4+ mm pockets (indentations) on underside of oak leaves with hairs that may be rusty brown, white, pink, or red. The pockets appear as bumps on the dorsal side of the leaves. Eriophyes mackiei is possibly the only oak-gallin

Poplar Bud Gall Mite

Aceria parapopuli

Identification: Associated with trees of the genus Populus : aspens, poplars and cottonwoods. Hard, woody, cauliflower-like galls 3 to 4 cm (1.2 to 1.6 inches) in diameter. Dark green early in the season, turning to a brick-red or blackish-brown colo

Aculops ailanthii

An introduced species. It is hoped that it can be used as a biological control of the invasive tree of heaven ( Ailanthus altissima ).

Hemp Russet Mite

Aculops cannabicola

Page creation based on the identification of these images by John McPartland, a leading authority on pests and diseases of Cannabis. Probably an introduced species, along with its food plant.

Aculops euphorbicolus

The mites produce deformed flower clusters or galls.

Eriophyes cerasicrumena

Identification: Mites so small that a microscope is needed. Better identified by the pouch-like galls.

Eriophyes prunidemissae

Eriophyes prunidemissae is an inquiline within the finger-like pouch galls on leaves of various plums and cherries ( Prunus spp.) formed by E. emarginatae . It may be distinguished from the E. emarginatae female by having microtubercles on its abdomi

Maple Spindlegall Mite

Vasates aceriscrumena

Identification: See images here. Don't cause serious damage but can be unsightly

Maple Bladdergall Mite

Vasates quadripedes

Created up to 3mm bladder-like galls which begin light colored or yellowish green then turn to reddish then to black; they appear as mini green peppers standing on stalks about the leaf surface.