According to National Geographic News the above is a relatively new species of fly that formed as a hybrid of two existing species:
The Lonicera fly evolved as a hybrid of two existing U.S. species, the blueberry maggot and the snowberry maggot, according to the study. The newfound species is named after the honeysuckle plant (scientific name: Lonicera), which the insect's life cycle revolves around.
Apparently, speciation by hybridization takes place in fish too:
German researchers have studied cichlids (a type of tropical freshwater fish) living in tiny volcano-crater lakes in Cameroon, West Africa. Their studies have shown that at least one cichlid species started off as a hybrid.
Among cichlids this process likely takes thousands of years. The Lonicera fly's evolution, however, has occurred only in the 250 years since its honeysuckle host plant arrived in North America.
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