Strauzia longipennis is a large species of tephritid fruit fly known by the common name sunflower maggot.

It is a minor pest whose larvae mine stems of sunflowers (Helianthus spp.).

The larvae do not damage the flower head or seeds, although those of other fruit fly species do so.

[2] The larvae are yellowish-white in color reaching a length of about 5 mm and spend around 30 days feeding within the host plant before overwintering in the base of the plant or soil as pupae.

Handbook of the fruit flies (Diptera: Tephritidae) of America north of Mexico.