From research colony.
Beaten from Ivy (Hedera helix)
Beaten from Holm Oak (Quercus ilex)
Non-target catch in one of our BG-1 Sentinel Mosquito Traps (contain CO2 and synthetic human-skin pheromone lures)
@carnifex: On my aquarium...
Location is where the fly has been found (on a house wall), not where the photo has been shot
Fruit fly with branched antennae… absence of wing spot but presence of large serrated egg-laying ovipositor, dark bands on abdomen, characteristic of female Spotted Wing Drosophila (Sexual dimorphism - females do not show wing spot but do have unique saw toothed ovipositor)