Agromyza schineri

Hexomyza schineri

Agromyzidae

Euhexomyza

Populus fremontii

Arizona

California

Idaho

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Texas

Utah

Populus spp

Populus tremuloides

Alaska

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Saint Pierre and Miquelon

Plant Galls and Gall Makers

Euhexomyza schineri

Agromyza schineri

Irregular oval swellings on smaller twigs, length 1/8 inch

Agromyza schineri Giraud.

Quaking Aspen {Populus tremuloides Michx.) Although quaking aspen belongs with the Poplars, it is a more common tree in north central Illinois. The gall is a rather irregular, oval swelling on smaller twigs. The gray-green color of these twig galls resembles that of the twigs themselves. Note that the new, leafy shoots appear to grow itself. (KB)

Some plant galls of Illinois

*Populus* spp. The larva forms twig-galls which are somewhat larger and more spherical than those of *[Hexomyia] salicis* [syn: *Euhexomyia salicis*].

The Agromyzidae of Canada and Alaska

*Euhexomyza schineri* (Giraud)
new combination
...
*Agromyza schineri* Giraud, 1861: 484. Malloch 1913: 327; Spencer 1966: 42 [lectotype designation].
*Melanagromyza schineri*. Hendel 1920: 128, 1931: 174; Frick 1952: 379; Sasakawa 1961: 349.
*Hexomyza schineri*. Spencer 1966: 42, 1969: 81, Spencer 1980: 29, 1990: 81; Spencer and Steyskal 1986: 36; Gil-Ortiz et al. 2012: 275 [Spain].

Redefinition and synonymy of genera in the Ophiomyia genus group, with the description of Euhexomyza new genus (Diptera: Agromyzidae)

*Euhexomyza schineri* (Giraud)
new combination
...
*Agromyza schineri* Giraud, 1861: 484. Malloch 1913: 327; Spencer 1966: 42 [lectotype designation].
*Melanagromyza schineri*. Hendel 1920: 128, 1931: 174; Frick 1952: 379; Sasakawa 1961: 349.
*Hexomyza schineri*. Spencer 1966: 42, 1969: 81, Spencer 1980: 29, 1990: 81; Spencer and Steyskal 1986: 36; Gil-Ortiz et al. 2012: 275 [Spain].
...
Host: *Populus* species; records from *Salix* species in Sasakawa (1961) are considered dubious by Spencer and Steyskal (1986).

Hexomyza schineri
[Page 66]

Hosts: Cottonwoods, poplars, and especially aspen 

Young branches can support dozens of these galls, sometimes in chains with one gall after another.

Plant Galls of the Western United States