''Rabdophaga salicisbrassicoides'', known generally as the willow rosette gall midge or willow cabbage gall midge, is a species of gall midges in the family Cecidomyiidae. Their galls and larvae thrive in association with the mutualistic relationship between '' Formica neoclara'' and '' Chaitophorus'' aphids found on their host species ''

Salix exigua ''Salix exigua'' (sandbar willow, narrowleaf willow, or coyote willow; syn. ''S. argophylla, S. hindsiana, S. interior, S. linearifolia, S. luteosericea, S. malacophylla, S. nevadensis,'' and '' S. parishiana'') is a species of willow native to m ...

''. The larva overwinter in their galls, and adults emerge in late April.

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