27. The Morphology and Anatomy of the Immature and Adult Stage s of Oligotrophus oleariæ Mask. (Cecidomyidæ, Diptera)
- 1The gall-midge, Oligotrophus oleariæ, attacking the New Zealand native shrub Shawia (Olearia) paniculata Cheesem. has been re-classified as Oligotrophus oleariæ Mask. The midge causes damage only to the young buds of the plant, and does not attack the leaves, as was originally supposed.
- 2The life-history of the midge is described briefly. The larva is parasitized by two species of hymenopterous insects, Pteromalus sp. and Metaclisis oleariæ Mask.
- 3A description of the externals of the larva, pupa, and imago is given, together with an account of the anatomy of the larva and the imago.