Drawn from a live specimen found near Lake Pleasant in Maricopa County, Arizona. A twig at lower left is shown with a gall caused by the feeding of minute gall midges (Asphondylia). They appear as compact mass of fluff. At the center may be found several yellow-orange larvae of the midge. An adult midge is shown enlarged near by. These galls are nearly always present and offer a good identification clue.
FRUIT: Scale-shaped nutlet has fine crenulations along its margin and
there is usu. a tubercle on the face. Fruit shown enlarged at right (a) in the
illustration. The nutlets are often borne in great abundance along the branch
Look for the fuzzy galls of Asphondylia midges on the twigs of Allscale Saltbush, Atriplex polycarpa. These galls are almost always present and offer a good identification clue.
Several small desert birds actively forage for insects in these bushes:
Chenopodiaceae -- Goosefoot Family
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