from ... leaf galls from Salvia (Ramona) californica and S. nivea [Felt later refers to "S. nivea (or leucophylla)"]

A very different leaf gall, apparently produced by the same midge, occurs on the margins of moderately well-developed leaves. It is a typical thin-walled, tubular gall with a length of about 6 mm., a diameter of 1.5 mm. The interior is occupied by an elongate larval chamber. Basally the gall is concolorous with the leaf, the distal third being purplish, the slightly curved apex a little lighter.

A modification of the first type of gall is seen on the aborted leaflets of S. nivea (or leucophylla). These galls are irregularly obconical, with a length of about 7 mm., a diameter of 3 mm. and are more or less confluent, otherwise nearly as described above.

- EP Felt: (1916) New Western Gall Midges^©

Reference: https://www.biodiversitylibrary.org/page/8184682#page/222/mode/1up